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Determination of Overall Protein Concentration Food analysts are interested in knowing the total concentration, type, molecular structure and functional properties of the proteins in foods.Ħ.2.
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These reactions can have either a favorable or detrimental effect on the overall properties of foods. Many food proteins are enzymes which are capable of enhancing the rate of certain biochemical reactions. Typically, proteins are used as gelling agents, emulsifiers, foaming agents and thickeners. Isolated proteins are often used in foods as ingredients because of their unique functional properties, i.e., their ability to provide desirable appearance, texture or stability. Proteins are also the major structural components of many natural foods, often determining their overall texture, e.g., tenderness of meat or fish products. They are a major source of energy, as well as containing essential amino-acids, such as lysine, tryptophan, methionine, leucine, isoleucine and valine, which are essential to human health, but which the body cannot synthesize. Proteins are important constituents of foods for a number of different reasons. As a result they have different molecular structures, nutritional attributes and physiochemical properties. Proteins differ from each other according to the type, number and sequence of amino acids that make up the polypeptide backbone. Twenty different types of amino acids occur naturally in proteins. If you want to buy whey isolate supplementation, then there is an excellent selection online with thousands of customer reviews.Proteins are polymers of amino acids. This was demonstrated in another study published in the International Journal of Sport Nutrition and Exercise Metabolism, which concluded that in “two groups of matched, resistance-trained males whey isolate provided significantly greater gains in strength, lean body mass, and a decrease in fat mass compared with supplementation with casein during an intense 10-week resistance-training program.” Much better gains in strength are associated with whey isolate supplementation compared with casein. Whey protein supplementation along with resistance exercise can help improve muscle protein synthesis and promote the growth of lean tissue mass.Ī study published in the International Journal of Sport Nutrition and Exercise Metabolism concluded that “whey protein supplementation during resistance training offers some benefit compared to resistance training alone.” In addition, “males who supplemented with whey protein had a greater relative gain in lean tissue mass.” Reducing weight loss in people with HIV: A study published in the journal Clinical and Investigative Medicine found that whey protein may help reduce weight loss among HIV-positive patients. One small study involving 11 children, published in the International Journal of Food Science and Nutrition, found that children with asthma who were supplemented with 10 gram whey protein twice daily for 1 month had an improved immune response.īlood pressure and cardiovascular disease: Research published in the International Dairy Journal found that beverages that were supplemented with whey protein significantly reduced blood pressure in patients with hypertension their risk of developing heart disease or stroke was also lower. They found that “there was a significant decrease in total cholesterol and LDL cholesterol at week 12 in the whey group compared with the casein (group).”Īsthma: Whey protein could improve the immune response in children with asthma. Lowering cholesterol: A study, published in The British Journal of Nutrition, gave whey supplements to 70 overweight men and women for 12 weeks and measured a number of parameters, such as lipid and insulin levels.
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Whey protein, pictured here, is used for many things including muscle building and weight loss.Īiding weight loss: In one study of 158 people, published in Nutrition & Metabolism, those who were given whey “lost significantly more body fat and showed a greater preservation of lean muscle compared to subjects consuming the control beverage.”Īnti-cancer properties: Promising results were published in the journal Anticancer Research for the use of whey protein concentrate in cancer treatment.