氨基酸是构成蛋白质的基本单位，是与生命活动密切相关的最基本物质，一切生命现象和生理活动都离不开氨基酸。世界各国创七巴发展氨基酸产业放在重要位置。目前我国氨基酸（除味精外）生产品种少、产量低，国内需求大部分依赖进口，耗用大量外汇。L一苯丙氨酸（简写L-Phe）是 Amino acids constitute the basic unit of protein and are the most basic material closely related to life activities. All life phenomena and physiological activities are inseparable from amino acids. The seven countries in the world create an important position in the development of the amino acid industry. At present, China’s amino acids (except for MSG) produce fewer varieties and have low yields. Domestic demand mostly depends on imports and consumes large amounts of foreign exchange. L-phenylalanine (L-Phe) is