09-06-2006, 06:10 PM
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#11 (permalink)
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Artist of Life
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This is the difference between Whey and Soy protein. (I prefer whey)
Quote:
http://en.wikipedia.org/wiki/Whey
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. The whey protein separated from this mixture is often sold as a nutritional supplement. In addition, 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[1] 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.
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Quote:
http://en.wikipedia.org/wiki/Soy_protein
Soy protein is generally regarded as the storage protein held in discrete particles called protein bodies which are estimated to contain at least 60-70% of the total soybean protein. Upon germination of the soybean, the protein will be digested and the released amino acids will be transported to locations of seedling growth. Legume proteins, such as soy, and pulses belong to the globulin family of seed storage proteins called leguminins (11S) and vicilins (7S), or glycinin and beta-conglycinin in soybeans. Grains contain a third type of storage protein called gluten or "prolamines". Soybeans also contain biologically active or metabolic proteins such as enzymes, trypsin inhibitors, hemagglutinins, and cysteine proteases. The soy cotyledon storage proteins, important for human nutrition, can be extracted most efficiently by water, water plus dilute alkali (pH 7-9), or aqueous solutions of sodium chloride (0.5-2 M) from dehulled and defatted soybeans that have undergone only a minimal heat treatment so that the protein is close to being native or undenatured. Soybeans are processed into three kinds of protein-rich products; soy flour, soy concentrate, and soy isolate.
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