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The fields of application of pure potato starch and its derivatives are extremely wide and varied. The products are used e.g. as binders, thickeners, stabilisers, fillers etc. in food products, potato starch = potato flour = potato starch flour = katakuriko Notes: This gluten-free gravies. Its main advantage over other starch thickeners is that it's a permitted ingredient for Passover, unlike cornstarch starch is used to thicken soups and and other grain-based foods.



Because potatoes are eaten so frequently they are very significant nutritionally. Potatoes are a good source of vitamin C, potassium and fibre and contain some magnesium. They are high in starch so will stop you feeling hungry for a long time. There is a special fibre in potato skin that helps to protect against some cancers, so to get the most goodness from your potato, leave the skin on. Potatoes contain anti–oxidants which research shows are able to inhibit the development of some cancers. In addition to this, anti–oxidants also decrease your risk of heart disease.



Potatoes are not fattening, however some cooking and preparation methods are! Sometimes potatoes have had a pretty bad reputation for being fattening, but it isn't the potatoes fault it is what we do to it.



Drying of Bioproducts is a mass transfer process resulting in the removal of water moisture or moisture from another solvent, by evaporation from a solid, semi-solid or liquid (hereafter product) to end in a solid state. To achieve this, there must be a source of heat, and a sink of the vapor thus produced. In bioproducts (food, grains, vaccines), and pharmaceuticals, the solvent to be removed is almost invariably water



In the most case, a gas stream, e.g., air, applies the heat by convection and carries away the vapor as humidity. Other possibilities are vacuum drying, where heat is supplied by contact conduction or radiation (or microwaves) while the produced vapor is removed by the vacuum system. Another indirect technique is drum drying, where a heated surface is used to provide the energy and aspirators draw the vapor outside the drum.



Freeze drying or lyophilization is a drying method where the solvent is frozen prior to drying and is then sublimed, i.e., passed to the gas phase directly from the solid phase, below the melting point of the solvent. Freeze drying is often carried out under high vacuum to allow drying to proceed at a reasonable rate. This process avoids collapse of the solid structure, leading to a low density, highly porous product, able to regain the solvent quickly. In biological materials or foods, freeze drying is regarded as one of the best if not the best method to retain the initial properties. It was first used industrially to produce dehydrated vaccines, and to bring dehydrated blood to assist war casualties. Now freeze drying is increasingly used to preserve some foods, especially for backpackers going to remote areas. The method may keep protein quality intact, the same as the activity of vitamins and bioactive compounds.



In turn, the mechanical extraction of the solvent, e.g., water, by centrifugation, is not considered "drying". The ubiquitous term dehydration may mean drying of water-containing products as foods, but its meaning is more vague, as it is also applied for water removal by osmotic drive from a salt or sugar solution. In medicine, dehydration is the situation by which a person loses water by respiration, sweating and evaporation and does not incorporate, for whatever reason, the "make-up" water required to keep the normal physiological behavior of the body.



There is very extensive technical literature on this subject, including several major textbooks and a dedicated scientific journal (Drying Technology

Cornstarch, or cornflour, is the starch of the maize grain, commonly known as corn. It is also ground from the endosperm, or white heart, of the corn kernel. It has a distinctive appearance and feel when mixed raw with water or milk, giving easily to gentle pressure but resisting sudden pressure. It is usually included as an anti-caking agent in powdered sugar (10X or confectioner's sugar). For this reason, recipes calling for powdered sugar often call for at least light cooking to remove the raw cornstarch taste.



Cornstarch is often used as a binder in puddings and similar foods. Most of the packaged pudding mixes available in grocery stores include cornstarch. Cornstarch puddings may be easily made at home, benefiting from the use of a double boiler. The most basic such pudding may be made only from milk, sugar, cornstarch and a flavoring agent.



It is also used as a thickener in many recipes. Cornstarch is best dissolved in cold water, as it forms obstinate lumps when mixed with warm or hot water.



Cornstarch also has many uses in the manufacturing of environmentally-friendly products. For example, in 2004, the Japanese company Pioneer announced a biodegradable Blu-Ray disc made out of cornstarch.



Cornstarch has been used as a replacement for talcum powder by some.



Due to cross contamination, wheat may be present. Read food label carefully to ensure it is Gluten Free.

Corn starch does not trigger the autoimmune response in celiac disease. It contains a form of gluten (a type of combined grain protein), but not the same form as wheat, barley, rye, kamut, spelt, and triticale. ??If the corn starch is not contaminated, it is safe for celiacs



Source:http://en.wikipedia.org/wiki/Cornstarch

Salt is one of the most ubiquitous food ingredients around. Those who think of salt only as something used to perk up flavor might wonder what could possibly give this ingredient the level of importance it has gained through the ages. In reality, there is much more to this crystalline cube than first meets the eye.



Besides enhancing taste, salt has several other functions in food products. It acts as an antimicrobial or microbiological control agent. It contributes to certain chemical reactions that create a wide variety of food characteristics.



Sometimes the terms "salt" and "sodium" are used interchangeably, but technically this is not correct. "Salt" is sodium chloride. By weight, it is 40 percent sodium and 60 percent chloride.

Most foods and tap water contain sodium and chloride. Sodium is an essential nutrient, a mineral that the body cannot manufacture itself.

Because of sodium's importance to your body, the excretory and nervous systems guard against under-consumption of salt, which is a threat to your body's nerves and muscles. Other ions such as calcium, magnesium, and potassium are also very important. Concentrations of these ions are held in narrow ranges by the kidney.



The association between eating salt and the risk of blood pressure increasing is difficult to quantify. Some people are sensitive to changes in salt intake whereas others can adjust so that blood pressure does not rise at all.



Americans typically consume 4,000-8,000 mg each day, well above their daily needs. A goal for moderation for all adults, (including pregnancy and lactation) is approximately 2,400 mg of sodium per day.

Soybean(s) Oil Partially Hydrogenated

Soybean Oil by itself is the 19% of oil extracted from the soybean. Partially hydrogenated is when hydrogen gas is pumped into the oil to fill in the unsaturated fat (“good fats”) bonds. However, through partial hydrogenation, the soybean oil takes a stiffer texture and the natural omega-3 fatty acids levels seen in natural soybean oil are lowered. This version of oil is therefore unhealthier to the consumer because of its unnatural use of hydrogenation which forms trans-fats that the body cannot breakdown. Trans-fats are solid fats produced from oil by unnatural methods and interfere with metabolic processes such as increasing LDL or “bad cholesterol.” Partially hydrogenated oils have a tendency to be used by food companies because of its cheapness, stability, improved texture, and ability to oxidize to provide a longer shelf life. People who are allergic to soy must be careful when reading the food labels for soybean oil. Consumption of soybean oil by those who are allergic to it can lead to discomfort or a more harmful reaction if not aware. Many of the essential fatty acids, antioxidants, and other positive components of the oil are lost through this process.

Armstrong, Eric. "Partially Hydrogenated Oils." TreeLight. 2010. Web. 16 May 2011. .

Jason. "Do You Know Why Is Partially Hydrogenated Soybean Oil an Allergen? | Allergy Relief." Allergy Relief - Allergy Symptoms And Allergic Reactions. 7 Feb. 2011. Web. 16 May 2011. .

"Soybean Oil A Source of Omega-3 Fatty Acids, Low-Linolenic Soybean Oil - United Soybean Board." Soy Health & Nutrition, Soy Foods Recipes, Soy Milk & Soya Bean Research - United Soybean Board. Web. 16 May 2011. .

Wheat flour is an excellent source of complex carbohydrates. Other than gluten flour, all types of wheat flour derive at least 80 percent of their calories from carbohydrates. Depending on the flour type, the percent of calories from protein ranges from 9 to 15 percent, except from gluten, which has a 45 percent protein content. Calories from fat are never more than 5 percent.



In addition, wheat flour provides from 3 g (cake flour) to 15 g (whole-wheat flour) of dietary fiber per 1-cup serving. Wheat flour contains B vitamins, calcium, folacin, iron, magnesium, phosphorus, potassium zinc and other trace elements, and minimal amounts of sodium.



Wheat is the most important cereal crop in the world and ubiquitous in our culture. Bread, pasta, bagels, crackers, cakes, muffins and other wheat containing products line our supermarket shelves and fill our grocery baskets. It is luck for us that this popular grain is available throughout the year.



Classes used in the United States are



Durum - Very hard, translucent, light colored grain used to make semolina flour for pasta.

Hard Red Spring - Hard, brownish, high protein wheat used for bread and hard baked goods.

Hard Red Winter - Hard, brownish, very high protein wheat used for bread, hard baked goods and as an adjunct in other flours to increase protein.

Soft Red Winter - Soft, brownish, medium protein wheat used for bread.

Hard White - Hard, light colored, opaque, chalky, medium protein wheat planted in dry, temperate areas. Used for bread and brewing

Soft White - Soft, light colored, very low protein wheat grown in temperate moist areas. Used for bread.

Hard wheats are harder to process and red wheats may need bleaching. Therefore, soft and white wheats usually command higher prices than hard and red wheats on the commodities market.



Wheat, in its natural unrefined state, features a host of important nutrients.



Therefore, to receive benefit from the wholesomeness of wheat it is important to choose wheat products made from whole wheat flour rather than those that are refined and stripped of their natural goodness.



The health benefits of wheat depend entirely on the form in which you eat it. These benefits will be few if you select wheat that has been processed into 60% extraction, bleached white flour. 60% extraction - the standard for most wheat products in the United States, including breads, noodles and pastas, baked goods like rolls or biscuits, and cookies - means that 40% of the original wheat grain was removed, and only 60% is left. Unfortunately, the 40% that gets removed includes the bran and the germ of the wheat grain - its most nutrient-rich parts. In the process of making 60% extraction flour, over half of the vitamin B1, B2, B3, E, folic acid, calcium, phosphorus, zinc, copper, iron, and fiber are lost.



Since 1941, laws in the United States have required "enrichment" of processed wheat flour with vitamins B1, B2, B3 and iron in response to the problems created by 60% extraction. Although not nearly as much of these B vitamins and iron are replaced as are removed from 60% extraction flour, "enriched" seems an odd word to describe this process. If you select 100% whole wheat products, however, the bran and the germ of the wheat will remain in your meals, and the health benefits will be impressive! Our food ranking qualified whole wheat (in its original non-enriched form) as a very good source of dietary fiber and manganese, and as a good source of magnesium.



Bran is made up of the outer layers of the wheat kernel. Bran is used in whole wheat flour. It is also used in breakfast cereals.



The germ is tiny - about 2 1/2% of the whole wheat kernel. The germ is the part that will sprout and grow into a new wheat plant if the kernel is planted. Wheat germ is sold in grocery stores and food markets. Whole wheat flour also contains wheat germ.

Vitamin B3



Also called Nicotinic Acid, Niacinamide, Nicotinic.



Acts as a co-enzyme in the release of energy from carbohydrates. Also needed to help breakdown fats and proteins. Aids in formation of red blood cells.

Since the 1950's doctors have used nicotinic acid to treat high cholesterol. Niacin is the only drug available that both substantially lowers the "bad" lipids (LDL), and increases the "good"(HDL) cholesterol. The reason this vitamin is not in the forefront of cholesterol therapy is because many people treated with high doses of niacin experience bothersome side effects such as; facial flushing, nausea, stomach pain, diarrhea and much more serious, liver damage.



Milk, eggs, meats (especially liver), chicken, fish, and most other protein-rich foods contain a significant amout of niacin. Also in smaller amounts in coffee and tea.



Dificiency is very rare in modern countries. Symptoms include: Pellagra (diarrhea, dermatitis, and dementia) Less severe symptoms of deficiency include irritability, loss of appetite, weekness and swollen tongue.

iron, iron sulfate, Used in the food industry as a carrier for iron.



Iron in the body works with proteins that release energy in metabolism such as hemoglobin, which carries oxygen in the blood stream. Also involved in the making of ammino acids, hormones, and neurotransmitters.

Iron can be found in meats, poultry, and fish and many fortified foods. Fruits, vegetables and juices also provide some iron.

Iron deficiency symptoms include; anemia, inability to concentrate, weakness, fatigue, pallor, being out of breath after small exertion, cold hands and feet. Some people may develop a smooth round tongue, and have difficulty swallowing.



Symptoms of overload include: nausea, vomiting, diarrhea, rapid heartbeat, dizziness, shock and even death.



***Parents should be warned that iron supplements and multivitamins containing iron are the second most common cause of poisoning in young children in the U.S. (Aspirin is the first) The lethal dose of ferrous sulfate for a 2-year-old is only 3g.***



Source: Harvard Medical School - Health Publications Group, Vitamins and Minerals

Vitamin B-1, Perfectly safe, despite adding minuscule amounts of nitrate to our food.

Vitamin B2, or riboflavin, is required to complete several reactions in the energy cycle. Reddening of the lips with cracks at the corners of the mouth, inflammation of the tongue, and a greasy, scaly inflammation of the skin are common symptoms of deficiency.Riboflavin (B2)- Classic riboflavin deficiency involves the lips, tongue, eyes, skin and nervous system. Vision changes, cheliosis (tiny lesions in the mouth or cracks in the corners of the mouth) tongue inflammation and discomfort eating or swallowing.



Riboflavin?s role in the body involves the metabolism of fats and proteins. Enzymes influenced by riboflavin are absolutely necessary to transport oxygen to the cells. A decrease in this vitamin can result in fatigue. New research indicates that migraine headache sufferers may benefit by riboflavin. 400mgs.day have been shown to lessen the incidence of migraines.



Required for red blood cell formation, antibody production, cell respiration and growth. Important for good muscle tone. Involved in metabolism of protein, protein fats, and carbohydrates. Necessary for good vision, skin, hair and nails.

Folic acid is the synthetic form of the B vitamin folate. Folic acid is necessary for the synthesis of nucleic acids and the formation of red blood cells. Folic-acid deficiency most commonly causes folic-acid-deficiency anemia. Symptoms include gastrointestinal problems, such as sore tongue, cracks at the corners of the mouth, diarrhea, and ulceration of the stomach and intestines. Large doses of folic acid can cause convulsions and other nervous-system problems.

The Food and Drug Administration (FDA) regulations require enriched grain products to contain this essential vitamin.



Current studies have discovered a link between folic acid and brain function in older people. The study divided 818 people ages 50 to 75 to take either a vitamin containing 800 micrograms of folic acid a day, or a dummy pill, for three years.



On memory tests, the supplement users had scores comparable to people 5.5 years younger, Durga said. On tests of cognitive speed, the folic acid helped users perform as well as people 1.9 years younger.

Enriched Flour - To be labeled as such, this flour must contain, within each pound, 2.9 milligrams (mg) of thiamin, 1.8 mg of riboflavin, 24 mg of niacin, and 20 mg of iron. The majority of all-purpose flour in the United States is enriched.



Its status as a staple is second only to rice. One reason for its popularity is that-unlike other cereals-wheat contains a relatively high amount of GLUTEN, the protein that provides the elasticity necessary for excellent breadmaking. Though there are over 30,000 varieties of wheat, the three major types are hard wheat, soft wheat and durum wheat. Hard wheat is high in protein (10 to 14 percent) and yields a flour rich in gluten, making it particularly suitable for YEAST BREADS. The low-protein (6 to 10 percent) soft wheat yields a flour lower in gluten and therefore better suited for tender baked goods such as biscuits and cakes. Durum wheat, although high in gluten, is not good for baking. Instead, it's most often ground into SEMOLINA, the basis for excellent pasta.



Wheat is the most important cereal crop in the world and ubiquitous in our culture. Bread, pasta, bagels, crackers, cakes, muffins and other wheat containing products line our supermarket shelves and fill our grocery baskets. It is luck for us that this popular grain is available throughout the year.



Classes used in the United States are



Durum - Very hard, translucent, light colored grain used to make semolina flour for pasta.

Hard Red Spring - Hard, brownish, high protein wheat used for bread and hard baked goods.

Hard Red Winter - Hard, brownish, very high protein wheat used for bread, hard baked goods and as an adjunct in other flours to increase protein.

Soft Red Winter - Soft, brownish, medium protein wheat used for bread.

Hard White - Hard, light colored, opaque, chalky, medium protein wheat planted in dry, temperate areas. Used for bread and brewing

Soft White - Soft, light colored, very low protein wheat grown in temperate moist areas. Used for bread.

Hard wheats are harder to process and red wheats may need bleaching. Therefore, soft and white wheats usually command higher prices than hard and red wheats on the commodities market.



Wheat, in its natural unrefined state, features a host of important nutrients.



Therefore, to receive benefit from the wholesomeness of wheat it is important to choose wheat products made from whole wheat flour rather than those that are refined and stripped of their natural goodness.



The health benefits of wheat depend entirely on the form in which you eat it. These benefits will be few if you select wheat that has been processed into 60% extraction, bleached white flour. 60% extraction - the standard for most wheat products in the United States, including breads, noodles and pastas, baked goods like rolls or biscuits, and cookies - means that 40% of the original wheat grain was removed, and only 60% is left. Unfortunately, the 40% that gets removed includes the bran and the germ of the wheat grain - its most nutrient-rich parts. In the process of making 60% extraction flour, over half of the vitamin B1, B2, B3, E, folic acid, calcium, phosphorus, zinc, copper, iron, and fiber are lost.



Since 1941, laws in the United States have required "enrichment" of processed wheat flour with vitamins B1, B2, B3 and iron in response to the problems created by 60% extraction. Although not nearly as much of these B vitamins and iron are replaced as are removed from 60% extraction flour, "enriched" seems an odd word to describe this process. If you select 100% whole wheat products, however, the bran and the germ of the wheat will remain in your meals, and the health benefits will be impressive! Our food ranking qualified whole wheat (in its original non-enriched form) as a very good source of dietary fiber and manganese, and as a good source of magnesium.



Bran is made up of the outer layers of the wheat kernel. Bran is used in whole wheat flour. It is also used in breakfast cereals.



The germ is tiny - about 2 1/2% of the whole wheat kernel. The germ is the part that will sprout and grow into a new wheat plant if the kernel is planted. Wheat germ is sold in grocery stores and food markets. Whole wheat flour also contains wheat germ.

Although soyfoods are widely recognized for their nutritional qualities, interest in soyfoods has risen recently because scientists have discovered that a soy component called isoflavones appears to reduce the risk of cancer. More research needs to be done to determine exactly how isoflavones work, but it appears that as little as one serving of soyfoods a day may be enough to obtain the benefits of this anticancer phytochemical.



Traditional soy products such as tofu, tempeh, and soy milk are very high in protein. Tempeh has the highest percentage of protein of the traditional soy products providing approximately 22 grams of protein for each 4 ounce (113 gram) serving. Tofu provides approximately 9 grams of protein for a similar small serving size. The Recommended Dietary Allowance of protein for adult males (aged 25-50) is appoximately 63 grams and 50 grams for adult females (aged 25-50). Soy products can provide a significant portion of one's daily protein needs.



It is important to keep in mind, however, that the balance of amino acids (protein building blocks) in soy is not the same as meat. Because soy foods does not have an ideal balance of amino acids, some experts recommend taking in a little extra soy foods and/or combining soy products or legumes with a whole grain dish at meals where other protein (e.g., eggs, fish) is not eaten. The amino acids in whole grains combine well with amino acids in soy and legumes to make a more ideal balance of amino acids. If a person's diet is reasonably-balanced, however, there is usually no need to be concerned about getting enough protein.

Source:http://www.soyinfo.com/



Vegetarians and health enthusiasts have known for years that foods rich in soy protein offer a good alternative to meat, poultry, and other animal-based products. As consumers have pursued healthier lifestyles in recent years, consumption of soy foods has risen steadily, bolstered by scientific studies showing health benefits from these products. Last October, the Food and Drug Administration gave food manufacturers permission to put labels on products high in soy protein indicating that these foods may help lower heart disease risk.



As with health claims for oat bran and other foods before it, this health claim provides consumers with solid scientific information about the benefits of soy protein and helps them make informed choices to create a "heart healthy" diet. Health claims encourage food manufacturers to make more healthful products. With soy, food manufacturers have responded with a cornucopia of soy-based wares. (See "The Soy Health Claim.")



No sooner had FDA proposed the health claim regulation, however, than concerns arose about certain components in soy products, particularly isoflavones. Resulting questions have engulfed the regulation in controversy.



This came as no surprise to Elizabeth A. Yetley, Ph.D., lead scientist for nutrition at FDA's Center for Food Safety and Applied Nutrition . "Every dietary health claim that has ever been published has had controversy," she says, "even the relationship of saturated fat to a healthy diet."



While the controversy may seem confusing to the consumer giving it casual consideration, a careful review of the science behind the rule reveals a strict divide between what FDA allows as a health claim based on solid scientific research and related issues that go well beyond the approved statements about health benefits of soy protein.

Source:http://www.fda.gov/fdac/features/2000/300_soy.html

Corn or maize is native to America but is now grown throughout the world. In grain form it is the staple diet for American Indians in Mexico, Peru and Southern North America.



The Maori were given maize by American sailors which they grew and ate both fresh and fermented. The fermented corn was known as kaanga. Its strong smell didn't appeal to Pakeha who ate corn mainly as a grain. Eventually a sweet form was developed, and hence the name sweetcorn, it wasn't until the 1960's that sweetcorn became a really popular fresh vegetable. Several varieties are available including some with white kernels and others with a mix of yellow and white kernels. Varieties differ in sweetness. Recently the supersweet varieties have become popular, with Honey 'n' Pearl being the most widely grown.



Sweetcorn is a very good source of fiber, protein and starch. corn is a great source of vitamin A, fiber, and other nutrients.



.

Its status as a staple is second only to rice. One reason for its popularity is that-unlike other cereals-wheat contains a relatively high amount of GLUTEN, the protein that provides the elasticity necessary for excellent breadmaking. Though there are over 30,000 varieties of wheat, the three major types are hard wheat, soft wheat and durum wheat. Hard wheat is high in protein (10 to 14 percent) and yields a flour rich in gluten, making it particularly suitable for YEAST BREADS. The low-protein (6 to 10 percent) soft wheat yields a flour lower in gluten and therefore better suited for tender baked goods such as biscuits and cakes. Durum wheat, although high in gluten, is not good for baking. Instead, it's most often ground into SEMOLINA, the basis for excellent pasta.



Wheat is the most important cereal crop in the world and ubiquitous in our culture. Bread, pasta, bagels, crackers, cakes, muffins and other wheat containing products line our supermarket shelves and fill our grocery baskets. It is luck for us that this popular grain is available throughout the year.



Classes used in the United States are



Durum - Very hard, translucent, light colored grain used to make semolina flour for pasta.

Hard Red Spring - Hard, brownish, high protein wheat used for bread and hard baked goods.

Hard Red Winter - Hard, brownish, very high protein wheat used for bread, hard baked goods and as an adjunct in other flours to increase protein.

Soft Red Winter - Soft, brownish, medium protein wheat used for bread.

Hard White - Hard, light colored, opaque, chalky, medium protein wheat planted in dry, temperate areas. Used for bread and brewing

Soft White - Soft, light colored, very low protein wheat grown in temperate moist areas. Used for bread.

Hard wheats are harder to process and red wheats may need bleaching. Therefore, soft and white wheats usually command higher prices than hard and red wheats on the commodities market.



Wheat, in its natural unrefined state, features a host of important nutrients.



Therefore, to receive benefit from the wholesomeness of wheat it is important to choose wheat products made from whole wheat flour rather than those that are refined and stripped of their natural goodness.



The health benefits of wheat depend entirely on the form in which you eat it. These benefits will be few if you select wheat that has been processed into 60% extraction, bleached white flour. 60% extraction - the standard for most wheat products in the United States, including breads, noodles and pastas, baked goods like rolls or biscuits, and cookies - means that 40% of the original wheat grain was removed, and only 60% is left. Unfortunately, the 40% that gets removed includes the bran and the germ of the wheat grain - its most nutrient-rich parts. In the process of making 60% extraction flour, over half of the vitamin B1, B2, B3, E, folic acid, calcium, phosphorus, zinc, copper, iron, and fiber are lost.



Since 1941, laws in the United States have required "enrichment" of processed wheat flour with vitamins B1, B2, B3 and iron in response to the problems created by 60% extraction. Although not nearly as much of these B vitamins and iron are replaced as are removed from 60% extraction flour, "enriched" seems an odd word to describe this process. If you select 100% whole wheat products, however, the bran and the germ of the wheat will remain in your meals, and the health benefits will be impressive! Our food ranking qualified whole wheat (in its original non-enriched form) as a very good source of dietary fiber and manganese, and as a good source of magnesium.



Bran is made up of the outer layers of the wheat kernel. Bran is used in whole wheat flour. It is also used in breakfast cereals.



The germ is tiny - about 2 1/2% of the whole wheat kernel. The germ is the part that will sprout and grow into a new wheat plant if the kernel is planted. Wheat germ is sold in grocery stores and food markets. Whole wheat flour also contains wheat germ.

Yeast is a living, microscopic, single-cell organism that, as it grows, converts its food (through a process known as fermentation) into alcohol and carbon dioxide. This trait is what endears yeast to winemakers, brewmasters and breadbakers. In the making of wine and BEER, the yeast's manufacture of alcohol is desired and necessary for the final product; and carbon dioxide is what makes BEER and CHAMPAGNE effervescent. The art of breadmaking needs the carbon dioxide produced by yeast in order for certain doughs to rise. To multiply and grow, all yeast needs is the right environment, which includes moisture, food (in the form of sugar or starch) and a warm, nurturing temperature (70° to 85°F is best).

Hydrolyzed: A protein obtained from various foods (like soybeans, corn or wheat), then broken down into amino acids by a chemical process called acid hydrolysis. Hydrolyzed plant or vegetable protein is used as a flavor enhancer in numerous processed foods like soups, chilis, sauces, stews and some meat products like frankfurters. Hydrolyzation of protein inevitably creates some (processed) free glutamic acid (MSG).



Manufacturers are acutely aware that many consumers would prefer not to have MSG in their food. Some manufacturers have responded by using "clean labels," i.e., labels that contain only ingredient names they think consumers will not recognize as containing MSG -- names such as "hydrolyzed soy protein." Others advertise "No MSG," "No MSG Added," or "No Added MSG," even though their products contain MSG



ref: truthinlabeling.org



source: www.healthfinder.gov/news

Upon standing, unhomogenized milk naturally separates into two layers-a MILK FAT-rich cream on top and almost fat-free (or skimmed) milk on the bottom. Commercially, the cream is separated from the milk by centrifugal force. Almost all cream that reaches the market today has been pasteurized. There are many varieties of cream, all categorized according to the amount of milk fat in the mixture. Light cream, also called coffee or table cream, can contain anywhere from 18 to 30 percent fat, but commonly contains 20 percent. Light whipping cream, the form most commonly available, contains 30 to 36 percent milk fat and sometimes stabilizers and emulsifiers. Heavy cream, also called heavy whipping cream, is whipping cream with a milk fat content of between 36 and 40 percent.

Skin Milk, Milk with fat removed.



To see the impact of your milk choice from another perspective, look at the difference in calorie content and the actual amount of fat in each type of milk. The recommended choices for most adults, nonfat (skim) and 1 percent (low-fat) milk, contain 86 to 105 calories in each eight-ounce glass, and 0.4 to 2.4 grams of fat.



Two-percent milk, which contains about 120 to 125 calories and 4.7 grams of fat in the same portion, is appropriate for people with higher calorie needs and who dont eat a lot of high-fat foods (especially children).



Raw milk" Cow's milk in as milked state

"Normal liquid milk" Cow's milk sold for the purpose of direct intake

"Certified milk" Normal liquid milk sold as certified milk

"Partly skimmed milk" Food obtained by removal of a part of milkfat from raw milk, normal liquid milk or certified milk, other than skimmed milk

"Skimmed milk" Food obtained by removal of almost all the milkfat from raw milk, normal liquid milk or certified milk, other than skimmed milk

"Processed milk" Food obtained by processing raw milk, normal liquid milk or certified milk, or foods manufactured using these milks as ingredients, which are sold for the purpose of direct intake (excludes partly skimmed milk, skimmed milk, fermented milk and lactic acid bacteria drinks)

"Cream (milk product)" Product obtained by removal of all constituents other than milkfat from raw milk, normal liquid milk or certified milk

"Butter" Product made by churning and working fat globules obtained from raw milk, normal liquid milk or certified milk

"Butter oil" Product obtained by removal of almost all constituents other than milkfat from butter or cream

Cultured milks are products made by use of special lactic acid bacteria cultures. They fall into two broad categories. Those made by use of lactic acid bacteria which grow well at ambient temperature (25-30°C). Such lactic acid bacteria are known as Mesophilic starter cultures. The other type of cultured dairy product is the one made by use of lactic acid bacteria which grow well under warm conditions (38 - 45(C) The lactic acid bacteria used are technically known as Thermophilic starter cultures. Yoghurt or yoghurt like products belong to this group.

Cultured milk products have been enjoyed in the Middle East, Europe, and parts of Asia for centuries. The Greeks felt that yogurt had therapeutic qualities for diseases caused by intestinal disorders. Bulgarians attribute their good health and longevity in part to their daily intake of cultured milk products.



The most common of the cultured milk products are yogurt, kefir, piima, buttermilk, and quark or cottage cheese.



Yogurt is simply milk thickened to a custard consistency by certain acid-forming bacteria growing in it. The special bacteria that turn milk into yogurt are lactobacillus bulgaricus, lactobacillus acidophilus, and streptococcus thermophilus. The coagulation and the fermentation of milk sugar into lactic acid is caused by these bacteria. This action curdles the protein in yogurt and acts as a preservative.



The bacteria in yogurt have already begun to break down the protein molecules into lactic acid, making it easy for the body to assimilate. Thus yogurt is helpful for people who have lactose intolerance, because they lack an enzyme that helps to digest milk sugar in regular milk. Yogurt helps the digestion process to move along smoothly and quickly.



In the Near East, babies are frequently fed yogurt for two or three months after they are weaned. Breast fed babies receive bacillus bifidus, a bacteria similar to lactobacillus bulgaricus found in yogurt.

Sour cream has long been a traditional ingredient in Eastern European cooking, and is an important ingredient in Hungarian cooking. It gives the pleasant tang to a great many dishes and has gained popularity in the rest of Europe, North America, and other parts of the world in the past 50 years or so.



Traditionally made by letting fresh cream sour nowadays, commercially produced sour cream is made by adding bacteria cultures to cream , allowing the bacteria grow until the cream is both soured and thick, and then pasteurising it to stop the process. By definition, sour cream must contain at least 18% milk fat by weight.



Sour cream is widely used in dips, spreads, sauces, cakes, soufflés, in savoury dishes such as beef stroganoff and Hungarian goulash and of course, to top baked potatoes and whilst it is rather rich in taste, it is actually lower in calories than comparable amounts of salad oils and most salad dressings.



Refrigerated in the original unopened package, the shelf life of sour cream is about four weeks. After opening it will keep for up to 7 days. Should separation occur, just stir to regain a smooth consistency. Freezing is not recommended.



Sour cream cannot be made at home with pasteurized cream due to the lack of natural bacteria which will cause the cream to spoil instead of sour.



Source:

http://www.recipes4us.co.uk/Cooking%20by%20Country/Sour%20Cream.htm

Sugar produced from cornstarch; comprised of glucose (dextrose), maltose and higher sugars; 70 percent to 80 percent solids

Sugar based sweeteners are those such as that developed from corn starch. The development of the various types of corn syrups, maltodextrins, and high-fructose corn syrup from corn starch sources could be called one of the greatest changes in the sugar and sweetener industry over several centuries. In the late 1800s it was found that corn starch could be hydrolyzed and a sugar formed. It was not until the 1970s that it became commercially a major product bringing about changes in the food industry. Over-reliance in the food industry and over-indulgence by consumers of these processed sugers, particularly high fructose corn syrup, has most likly contributed to obesity in many western countries.



These sweeteners are processed and refined using a series of separation, and grinding processes. Finally, the products are converted and fermented. From this processing a five classes of corn sweeteners are formed. This does not include the corn syrup conversion into high-fructose corn syrup.

Whey or milk plasma is the liquid remaining after milk has been curdled and strained; it is a by-product of the manufacture of cheese or casein and has several commercial uses. Whey is used to produce ricotta and gjetost cheeses and many other products for human consumption. It is used as an additive in many processed foods, including breads, crackers and commercial pastry. In addition, whey is used as an animal feed. Whey proteins mainly consist of a-lactalbumin and ß-lactoglobulin. Depending on the method of manufacture, it may also contain glycomacropeptides (GMP).



The whey protein separated from this mixture is often sold as a nutritional supplement. Such supplements are especially popular in the sport of bodybuilding. Liquid whey contains lactose, vitamins, and minerals along with traces of fat. Researchers at Lund University in Sweden discovered that whey appears to stimulate insulin release. Writing in the American Journal of Clinical Nutrition they also discovered that whey supplements can help regulate and reduce spikes in blood sugar levels among people with type 2 diabetes by increasing Insulin secretion.

Maltodextrin is a flavorless, easily digested carbohydrate made from cornstarch. A natural, complex carbohydrate, it is not a simple sugar (dextrose, fructose, sucrose etc.) It can be derived from potato or corn starch; used in food industry such as sweets, drink, beer, ice cream, preserved fruit, milk powder, malted mild, cake, biscuit and bread, as well as in medicine, textile, printing and dyeing, paper making, casting and petroleum drilling; generally recognized as safe.



Maltodextrin often contains Monosodium Glutimate (MSG), to which many people have an adverse reaction to.

Any of a class of sweet,Soluble Carbohydrate,as sucrose,glucose,sucrose from sugar cane and sugar beets.

We get our energy from the nutrients in food. The main sources of energy are carbohydrates (starches and sugars), fats and proteins. The body can be compared to an engine that converts the energy in food into the energy we need to live. Sugars and starches are forms of carbohydrate. Nutritionists recommend that about half of our energy should be supplied by carbohydrates. The majority of this should be from starchy foods like cereals, rice, potatoes, pasta or bread, with the remainder coming from sugars. During digestion (the process by which we break down food substances ready for absorption and use by the body) complex starchy foods are broken down into sugars.

Without doubt the onion is the most used flavoring vegetable in the world. There is hardly a savoury dish that doesn't include onions or one of its relatives - white and red onions, garlic, chives, shallots, spring onions and leeks. Members of the onion family vary enormously in shape, size, colour, texture and intensity of flavor. Onions, particularly garlic, have also been used as medicines. The ancient Egyptians worshipped onions and during the Middle Ages they were used as currency. Onions give you some vitamin C and fiber. Scientists have recently discovered that flavenoids found in onions may protect people from heart disease.



Cocktail onions

These tiny onions have a sweet white flesh and are sold pickled in vinegar. They are the smallest variety available.

Uses: Serve pickled cocktail onions with a selection of cold meats or with crusty bread and mature Cheddar cheese.

To store: Keep in a cool, dark place for up to 1 year.



Pearl onions

Also known as button or baby onions, these are larger than pickling onions and have a sweet, delicate flavour.

Uses: Add whole to stews and casseroles or cook them very gently in a little butter and a splash of balsamic vinegar for 20-30 minutes until tender, serve with roasted meat.



Pickling onions

These are maincrop onions, picked when they are still small. Available only in the autumn, they have a strong, pungent flavour.

Seasonal availability: September to November.

Uses: Preserve them in vinegar, leave to mature and enjoy them with cheese and cold meats. They can also be added whole to casseroles in place of shallots or standard onions.

To store: Store in a dark, cool, airy place.

To prepare: Chop off the neck and just a little of the base to help the onion stay together. Score a line down the side of the onion and peel away the outer skin and first layer of flesh. To make peeling easier, soak the onions in warm water to soften the skins.



Red onions

Red onions have a mild sweet flavour and an attractive colour.

Uses: As a garnish or combine with tomatoes and red leaf lettuce for a colourful salad, or include in homemade chutneys to serve with cheese and cold meats. Try them quartered and roasted in olive oil.

Seasonal availability: All year, English from October to April.

To store: Store in a dark, cool, airy place.

To prepare: Cut the neck and base away, then score down the side of the onion and remove the skin and first layer of flesh. To help hold back the tears during preparation, chill the onion first for 30 minutes and always remove the root end last. The root contains the largest concentration of sulphuric compounds which make the eyes water.



Shallots

These are not baby onions (as pickling onions are) but a close relation of the onion. They have a mild, delicate flavour which is less overpowering than most onions so do try to use shallots where a recipe specifies if possible. Shallots grow in a similar way to garlic - when you peel one there may be two or three held together at the root.

Seasonal availability: All year.

Uses: Use in recipes where a small amount of onion is used or where a subtle onion flavour is needed. They are often included in rich, creamy sauces where just a hint of onion flavour is needed.

To store: Keep in a cool, dry place.

To prepare: Top and tail shallots and then peel the outer skin away. If there are several bulbs, pull them apart and then slice.



Spanish onions

Onions grown in warm climates are milder than those from cooler regions, consequently Spanish onions have a mild, sweet flavour. Their skins are a rich golden colour and they are one of the largest varieties available.

Seasonal availability: All year.

Uses: Serve raw in salads, stuff and bake them or add to any savoury dish where a subtle onion flavour is required.

To store: Store in a dark, cool, airy place.

To prepare: Cut the neck and base away, then score down the side of the onion and remove the skin and first layer of flesh. To help hold back the tears during preparation, chill them first for 30 minutes and always remove the root end last. The root contains the largest concentration of sulphuric compounds which make the eyes water.



Spring onions

Also known as salad onions, these are onions that have been harvested at a very young age. They have green shoots and a creamy white bulb, both of which can be eaten. They have a mild flavour and are often eaten raw.

Seasonal availability: May to September.

Uses: In salads, stir-fries, omelettes or sandwich fillings.

To store: Keep in the fridge for 3-4 days.

To prepare: Trim off the root and the outer leaves. Serve whole or sliced, the green tops can be snipped using kitchen scissors.



White onions

With a strong, pungent flavour and distinctive white skin and flesh, white onions are increasingly popular.

Uses: Ideal for serving raw in salads or cooked they are very versatile.



Yellow onions

These are the most commonly used onions and they have a golden brown skin. They have a pungent aroma, a strong flavour and are a good all-round onion.

Seasonal availability: All year.

Uses: In a wide variety of dishes from casseroles, pies and quiches to stir-fries, sauces and pizzas.

To store: Keep in a dark, airy place.

To prepare: Cut the neck and base away, then score down the side of the onion and remove the skin and first layer of flesh. To help hold back the tears during preparation, chill them first for 30 minutes and always remove the root end last. The root contains the largest concentration of sulphuric compounds which make the eyes water.

Also called corn sugar and grape sugar, dextrose is a naturally occurring form of GLUCOSE.



GLUCOSE: The most common form of this sugar is dextroglucose, a naturally occurring form commonly referred to as DEXTROSE (also called corn sugar and grape sugar). This form of glucose has many sources including grape juice, certain vegetables and honey. It has about half the sweetening power of regular sugar. Because it doesn't crystallize easily, it's used to make commercial candies and frostings, as well as in baked goods, soft drinks and other processed foods. Corn syrup is a form of glucose made from cornstarch.

Color(s) Added

This term is usually followed by a specific color that the food item contains. It can be naturally derived food coloring or artificial depending on the manufacturer. Natural dyes are extracts that are plant based, while artificial dyes are petroleum based.

"U.S. Still Using Toxic Dyes Left Out of U.K. Goods." Health Freedom Alliance. 14 Mar. 2011. Web. 16 May 2011. .

a chemical added to water to increase the solubility of certain ions and to deter the precipitation of certain chemicals. For example, it is used to prevent calcium from precipitating out of water and clogging pipes. Its thin, passivating film protects metals from corrosion. Used as a food additive and preservative.





WWW.epa.com

The majority of consumers prefer beef with a white, or creamy white, fat rather than a yellowish fat. Previous studies reported in the literature have shown that cattle finished on grain-based diets have generally produced carcasses with a whiter fat than those finished at pasture, an effect thought to reflect the lower content of carotenoids in grain.

Genetically Modified soybeans and corn make up the largest portion of genetically engineered crops. When looking at a product label, if any of the following ingredients are listed there’s a good chance it has come from GM corn or soy (unless it’s listed as organic.



Due to cross contamination, wheat may be present. Read food label carefully to ensure it is Gluten Free.

Sodium Caseinate

Sodium Caseinate is a modified protein extracted from milk. It has no odor or taste and is used as a thickening and whitening agent in dairy products. The protein component utilizes emulsification, water absorption, gelling, and stabilization properties. It is used in dairy non-creamers to act as a creamy, white dairy substitute without the lactose that people who are lactose-intolerant cannot digest. Because of its large difference between the “milk derivative” that is sodium caseinate and real cream or milk, it is considered non-dairy. There is controversy whether sodium caseinate still has all the nutritional benefits that milk has because it is non-dairy. It is also a source of free glutamic acid. See monosodium glutamate (MSG).

"CASEIN, AMMONIUM CASEINATE, CALCIUM CASEINATE, POTASSIUM CASEINATE, SODIUM CASEINATE - FOOD RESOURCE - OREGON STATE UNIVERSITY." Food Science, Cultural Foods, Glossary, Training, Education Food Resource [http://food.oregonstate.edu/], Oregon State University, Corvallis, OR. Web. 16 May 2011. .

"Food Additives ~ CSPI’s Food Safety." Center for Science in the Public Interest. Web. 16 May 2011. .

"Products Page." Casein & Caseinates/Prestige Proteins -- Your One Stop Global Source for Casein & Caseinates. Web. 16 May 2011. .

"Vegetarians in Paradise/ Non-dairy Creamers/ Non Dairy Coffee Creamers/Sodium Caseinate." Vegetarians in Paradise Vegetarian/Vegan Los Angeles Internet Magazine. 1 Jan. 2003. Web. 16 May 2011. .

Autolyzed yeast extract is a substance that results when yeast is broken down into its constituent components. It contains some free glutamic acid, which is the chemical in MSG that triggers reactions in MSG sensitive people. It is used as a less expensive substitute for MSG, leading some health and consumer advocates to object to its use in foods. As with MSG, the industry claims that yeast extract is a natural substance with no harmful effects, and opponents claim it causes a variety of health problems.



Autolyzed yeast extract is naturally produced by growing, harvesting, and concentrating yeast cells. The yeast self-digests (autolyzes), breaking down the cell walls, and creates a savory base used to formulate a multitude of different flavors.



Autolyzed yeast (containing the cell walls) or autolyzed yeast extract consists of concentrations of yeast cells that are allowed to die and break up, so that the yeasts’ endogenous digestive enzymes break their proteins down into simpler compounds (amino acids and peptides).



Yeast autolysates are used in Vegemite (Australia), Marmite, Promite, Oxo (New Zealand, South Africa, United Kingdom, and Republic of Ireland), Cenovis (Switzerland) and Vitam-R (Germany). Bovril (United Kingdom and Republic of Ireland) switched from beef extract to yeast extract for 2005 and most of 2006, but later switched back.



The general method for making yeast extract for food products such as Vegemite and Marmite on a commercial scale is to add sodium chloride (salt) to a suspension of yeast, making the solution hypertonic, which leads to the cells shrivelling up; this triggers autolysis, in which the yeast self-destructs. The dying yeast cells are then heated to complete their breakdown, after which the husks (yeast with thick cell walls) are separated. Removing the cell walls concentrates the flavors and changes the texture.

Monosodium Glutamate

Monosodium Glutamate (MSG) is used in foods as a flavor enhancer while not providing their own separate flavor. The white crystalline powder is derived from glutamic acid, one of the 22 essential amino acids. Glutamic acid is present in seaweed, vegetables, cereal gluten, but MSG is not found naturally by itself. The Federal Drug Administration recognizes MSG to be Generally Recognized As Safe (GRAS). Consuming MSG Is not a health hazard to the individual, but some may exhibit allergic reactions due to hypersensitivity. Symptoms are temporary but may include a burning sensation, facial pressure, headache, nausea or chest pains.



Ingredients Always Containing MSG:



Any "Hydrolyzed Protein",

Autolyzed Yeast,

Calcium Caseinate,

Gelatin,

Glutamate,

Glutamic Acid,

Hydrolyzed Corn Gluten,

Monopottassium Glutamate,

Monosodium Glutamate,

Natruium Glutamate,

Sodium Caseinate,

Textured Protein,

Yeast Extract,

Yeast Nutrient.



Ingredients Often Containing or

Producing MSG.



Any "flavors" or "flavoring"

Anything "enzyme modified"

Anything "protein fortified"

Anything "ultra-pasteurized"

Anything containing "enzymes"

Anything fermented

Barley Malt

Bouillon and Broth

Carrageenan

Citric Acid

Ingredients often containing or producing MSG

Malt Extract

Maltodextrin

Pectin

Protease

Seasonings

Seasonings

Soy Protein

Soy Protein Concentrate

Soy Protein Isolate

Soy Sauce

Soy Sauce Extract

Stock

Whey Protein

Whey or milk plasma is the liquid remaining after milk has been curdled and strained; it is a by-product of the manufacture of cheese or casein and has several commercial uses. Whey is used to produce ricotta and gjetost cheeses and many other products for human consumption. It is used as an additive in many processed foods, including breads, crackers and commercial pastry. In addition, whey is used as an animal feed. Whey proteins mainly consist of a-lactalbumin and ß-lactoglobulin. Depending on the method of manufacture, it may also contain glycomacropeptides (GMP).



The whey protein separated from this mixture is often sold as a nutritional supplement. Such supplements are especially popular in the sport of bodybuilding. Liquid whey contains lactose, vitamins, and minerals along with traces of fat. Researchers at Lund University in Sweden discovered that whey appears to stimulate insulin release. Writing in the American Journal of Clinical Nutrition they also discovered that whey supplements can help regulate and reduce spikes in blood sugar levels among people with type 2 diabetes by increasing Insulin secretion.



Source:http://en.wikipedia.org/wiki/Whey

Lactic acid is primarily found in sour milk products, such as: koumiss, leban, yogurt, kefir, and some cottage cheeses. The casein in fermented milk is coagulated (curdled) by lactic acid.



Although it can be fermented from lactose (milk sugar), most commercially used lactic acid is derived by using bacteria such as Streptococcus thermophilus, Lactobacillus acidophilus, or Lactobacillus delbrueckii subsp. bulgaricus (formerly known as Lactobacillus bulgaricus) to ferment carbohydrates from nondairy sources such as cornstarch, potatoes, and molasses. Thus, although it is commonly known as "milk acid", vegan products can contain lactic acid as an ingredient.



Lactic acid may also be found in various processed foods, usually either as a pH-adjusting ingredient, or as a preservative (either as antioxidant or for control of pathogenic micro-organisms). It may also be used as a fermentation booster in rye and sourdough breads.



Potassium lactate, sodium lactate, and calcium lactate are the neutralized salts of lactic acid. Potassium lactate is used in many fresh and cooked meat products for shelf life control, color preservation, and reduction of sodium content. Sodium lactate has a mild saline taste and is therefore suitable for flavor enhancement in meat products as well. Sodium lactate is being produced in solution as well as dry. Calcium lactate is popular for fortification and improved texture in emulsified meat products like frankfurters. Ready-to-eat meat and poultry products commonly contain sodium or potassium lactate to control Listeria monocytogenes.



Lactic acid is also present in wheat beers, especially lambic, due to the activity of Pediococcus damnosus.



Lactic acid is widely used for reducing the number of pathogenic bacteria like E.coli, Salmonella, Campylobacter, and Listeria on animal carcasses like beef, pork, and poultry during the slaughtering process.



source:

http://en.wikipedia.org/wiki/Lactic_acid

Flavor(s) Natural

Under the Code of Federal Regulation, natural flavor is defined as “the essential oil, oleoresin, essence or extractive, protein hydrolysate, distillate, or any product of roasting, heating, enzymolysis (biochemical decomposition of a substance), which contains the flavoring constituents derived from a spice, fruit or fruit juice, vegetable juice, edible yeast, herb, bark, bud, root, leaf or similar plant material, meat, seafood, poultry, eggs , dairy products, or fermentation products thereof, whose significant function in food is flavoring rather than nutritional.” Natural flavoring substances are obtained from plant or animal raw materials, containing no other artificial or added ingredients. Spices approved by the Food and Drug Administration (FDA) such as black pepper and basil do not have to be listed under its specific name. Additives can also be listed under natural flavoring because they might meet FDA definition standards, the extraction process consider flavorings man-made. In addition, spice extracts, essential oils, oleoresins, onion powder/juice, and garlic powder/juice are allowed to be labeled under “flavor” or “natural flavor.”

"Common Food Safety Questions from FSIS - Natural Flavorings on Meat & Poultry Labels." USDA Food Safety and Inspection Service Home. Web. 16 May 2011. .

Though there are more than 30 varieties of this herb, the most popular are curly-leaf parsley and the more strongly flavored Italian or flat-leaf parsley. Fresh curly leaf parsley is widely available year-round, while Italian parsley must sometimes be searched out in gourmet produce markets. Parsley is sold in bunches and should be chosen for its bright-green leaves that show no sign of wilting. Dried parsley is available in the spice section of most supermarkets but bears little resemblance to the flavor of fresh. Parsley is an excellent source of vitamins A and C, though these vitamins are often destroyed by different methods of cooking.

Emulsifier for chocolate drink, pH adjuster

Basic Egg Facts



Air Cell

The empty space between the white and shell at the large end of the egg.



When an egg is first laid, it is warm. As it cools, the contents contract and the inner shell membrane separates from the outer shell membrane to form the air cell.



The candler uses the size of the air cell as one basis for determining grade. In Grade AA eggs, the air cell may not exceed 1/8-inch in depth and is about the size of a dime. The air cell of Grade A eggs may exceed 3/16-inch in depth. For Grade B eggs, there is no limit on air cell size.



As the egg ages, moisture and carbon dioxide leave through the pores of the shell, air enters to replace them and the air cell becomes larger.



Although the air cell usually forms in the large end of the egg, it occasionally moves freely toward the uppermost point of the egg as the egg is rotated. It is then called a free or floating air cell. If the main air cell ruptures, resulting in one or more small separate air bubbles floating beneath the main air cell, it is known as a bubbly air cell.



You can see the air cell in the flattened end of a peeled, hard-cooked egg.

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Albumen

Also known as egg white. Albumen accounts for most of an egg's liquid weight, about 67%. It contains more than half the egg's total protein, niacin, riboflavin, chlorine, magnesium, potassium, sodium and sulfur. The albumen consists of 4 alternating layers of thick and thin consistencies. From the yolk outward, they are designated as the inner thick or chalaziferous white, the inner thin white, the outer thick white and the outer thin white. Egg white tends to thin out as an egg ages because its protein changes in character. That's why fresh eggs sit up tall and firm in the pan while older ones tend to spread out.



Albumen is more opalescent than truly white. The cloudy appearance comes from carbon dioxide. As the egg ages, carbon dioxide escapes, so the albumen of older eggs is more transparent than that of fresher eggs.



When egg albumen is beaten vigorously, it foams and increases in volume 6 to 8 times. Egg foams are essential for making souffles, meringues, puffy omelets, and angel food and sponge cakes.



The yolk or yellow portion makes up about 33% of the liquid weight of the egg. It contains all of the fat in the egg and a little less than half of the protein.



With the exception of riboflavin and niacin, the yolk contains a higher proportion of the egg's vitamins than the white. All of the egg's vitamins A, D and E are in the yolk. Egg yolks are one of the few foods naturally containing vitamin D.



The yolk also contains more phosphorus, manganese, iron, iodine, copper, and calcium than the white, and it contains all of the zinc. The yolk of a Large egg contains about 59 calories.



Double-yolked eggs are often produced by young hens whose egg production cycles are not yet completely synchronized. They're often produced, too, by hens who are old enough to produce Extra Large eggs. Genetics is a factor, also. Occasionally a hen will produce double-yolked eggs throughout her egg-laying career. It is rare, but not unusual, for a young hen to produce an egg with no yolk at all.

Sulfiting agents prevent discoloration (dried fruit, some "fresh" shrimp, and some dried, fried, or frozen potatoes) and bacterial growth (wine). They also destroy vitamin B-1 and, most important, can cause severe reactions, especially in asthmatics. If you think you may be sensitive, avoid all forms of this additive, because it has caused at least twelve known deaths and probably many more.