Abstract:In resent years, it was found that these branched amino acids play a important role in the physiology of physical exercise, in central fatigue hypothesis, it muscle protein balance, in the secretion of insulin, in the modulation of the immune response, in performance enhancement of individuals who work out in hot environments, and in avoiding muscle lesion. And high ingestion of cholesterol might result serum cholesterol level rising, and high serum cholesterol level was deemed to cause hypertension, atherosclerosis, and coronary heart disease. So this paper prepared an egg powder of rich branched chain amino acids and low cholesterol by enzyme and supercritical fluid extraction.