Heat resistant maltose phosphorylase, process for preparation thereof, bacteria used for preparation thereof, and methods for using the enzyme
申请人:SHOWA SANGYO Co., Ltd.
公开号:EP0757098A2
公开(公告)日:1997-02-05
This invention relates to heat resistant maltose phosphorylase having an activity of 80 % or more of the one untreated after treated in a buffer of pH 6.0, at one temperature of 50 to 60 °C for 15 minutes, a process for preparation thereof, bacteria used for preparation thereof, and processes for preparation of β-glucose-1-phosphoric and trehalose using the enzyme.
By carrying out enzymatic reaction at high reaction temperatures using this enzyme, it is possible to prepare β-glucose-1-phosphoric acid or trehalose industrially advantageously, with lowering of contamination with various germs and shortening of reaction time.
本发明涉及耐热麦芽糖磷酸化酶(在 pH 值为 6.0 的缓冲液中,在 50 至 60 °C 的温度下处理 15 分钟后,其活性为未处理时的 80% 或以上)、其制备工艺、用于制备该酶的细菌,以及使用该酶制备 β-葡萄糖-1-磷酸和妥尔糖的工艺。
通过使用这种酶在高温下进行酶反应,可以在工业上有利地制备 β-葡萄糖-1-磷酸或曲哈琉糖,降低各种病菌的污染,缩短反应时间。