A method for producing glycine in which an aqueous solution of glycinonitrile is subjected to a hydrolysis reaction in a hydrolysis reaction system in which the oxygen dissolved therein is maintained in an amount of 5 ppm by weight or less, under the action of a microbial enzyme having the activity to hydrolyze a nitrile group. The glycinonitrile is converted to glycine with by-production of ammonia. The hydrolysis of glycinonitrile is conducted either in the presence of the ammonia or while recovering the by-produced ammonia separately from the recovery of glycine in the absence of a base and an acid.
一种生产甘
氨酸的方法,在该方法中,在具有
水解腈基活性的微
生物酶的作用下,将甘腈
水溶液在
水解反应系统中进行
水解反应,在该系统中,溶解在其中的
氧气量按重量计保持在百万分之五或更低。甘
氨腈转化为甘
氨酸,同时产生
氨。甘
氨腈的
水解可以在有
氨存在的情况下进行,也可以在没有碱和酸的情况下将副产的
氨与甘
氨酸的回收分开进行。