A stabilised enzyme preparation comprising an immobilised hydantoinase is useful for the preparation of a D(-)(optionally substituted phenyl)glycine or N-carbamoyl derivative thereof by hydrolysis of a 5-(optionally substituted phenyl)hydantoin.
The enzyme preparation comprises cells or treated cells of a hydantoinase - producing organism immobilised within or on a suitable solid support, or an enzyme derived from the organism adsorbed on or bonded to a polymeric support, together with divalent metal ions which stabilise the preparation and render it capable of re-use.
Processes for preparing the enzyme preparation and for using it to prepare commercially impor tant end products such as D(-)(4-hydroxyphenyl)glycine are described.
一种包含固定化海因酶的稳定化
酶制剂可用于通过
水解 5-(任选取代苯基)海因制备 D(-)(任选取代苯基)甘
氨酸或其 N-
氨基甲酰基衍
生物。
酶制剂包括固定在适当固体载体内或上的产生海因酶的
生物体的细胞或经处理的细胞,或吸附在聚合物载体上或与聚合物载体结合的从
生物体衍生的酶,以及稳定制剂并使其能够重复使用的二价
金属离子。
描述了制备
酶制剂和用其制备商业上重要的最终产品(如 D(-)(
4-羟基苯基)甘
氨酸)的工艺。