ABSTRACT
Protein analysis is a subject of enormous economic and social interest. The market value of the major agricultural commodities (cereal grains, legumes, flour, oilseeds, milk, livestock feeds) is determined partly by their protein content. Protein quantitative analysis is necessary for quality control and is a prerequisite for accurate food labeling. Proteins from different sources have varying aesthetic appeal to the consumer. Compliance with religious dietary restrictions means excluding certain protein (sources) from the diet. The variety of protein consumed is also extremely important in relation to food allergy. Detecting undeclared protein additives and substitutions is a growing problem. Proteins show differing nutritional quality or ability to support dietary needs. In summary, protein analysis has legal, nutritional, health, safety, and economic implications for the food industry (1).
