ingredient information
Cherries Dried Tart
Compact, juicy, and colorful, cherries are nicely supplied with nutrients, notably pectin (a soluble fiber that helps control blood cholesterol levels), vitamin C, and beta-carotene, with some potassium. (Sour cherries, which are sometimes called "pie cherries," have considerably more vitamin C than sweet cherries do, though much of it is lost when the cherries are cooked.) Cherries are also high in a number of phytochemicals, including: anthocyanins (pigments responsible for the red and blue colors of fruits and vegetables), which may have anticancer properties based on their antioxidant activities that defend cells against harmful carcinogens); and quercetin, a so-called flavonoid, which is an antioxidant and may have both anticancer potential as well as anti-inflammatory and antihistaminic properties. It is this anti-inflammatory activity that has made cherries (specifically cherry juice) of interest to people who suffer from gout. There's even a possible dental health bonus in that studies have shown that a substance (not yet identified) in cherry juice may help prevent tooth decay. Although some people find the cherry pit an annoying feature, their only other shortcoming is their brief season, which lasts less than 3 months. But during that time, they are in abundant supply. Cherries are grown successfully in commercial quantities in only 20 countries, and the U.S. is one of the leading producers. Seventy percent of the cherries produced in the U.S. come from four states: Washington, Oregon, Idaho, and Utah. 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