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粮食是人类获得蛋白质的主要来源之一。不同地区,不同品种粮食的粮食蛋白质组成各不相同。蛋白质营养价值的高低,主要取决于所含必需氨基酸的种类、数量和组成的比例。在合成人体蛋白质的二十种氨基酸中,八种必需氨基酸是人体不能合成的,必须由食物供给。蛋白质合成时,八种必需氨基酸按照一定的比例组合。缺少一种或含有不足模式量,其它氨基酸或超过模式量将随着血液代谢循环被排出。若长期缺少某种
Food is one of the main sources of human protein. Different regions, different varieties of food grain protein composition varies. The nutritional value of protein, mainly depends on the type of essential amino acids contained, the number and composition ratio. Of the twenty amino acids that synthesize human proteins, eight essential amino acids are not synthesized by the body and must be supplied by food. Protein synthesis, the eight essential amino acids according to a certain percentage of combinations. In the absence of one or with insufficient mode amounts, other amino acids or excess mode amounts will be excreted with the blood metabolic cycle. If long-term lack of a