The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 11, 2022
Filed:
Jun. 20, 2018
Abiochem Biotechnology Co., Ltd., Shanghai, CN;
Chuanmin Sun, Shanghai, CN;
Zhanbing Cheng, Shanghai, CN;
Jianghua Jiao, Shanghai, CN;
Shaonan Ding, Shanghai, CN;
Zhenhua Tian, Shanghai, CN;
ABIOCHEM BIOTECHNOLOGY CO., LTD., Shanghai, CN;
Abstract
An R-3-aminobutyric acid preparation method with high efficiency and high stereoselectivity. The method comprises using aspartase with stereoisomerization catalytic activity derived fromto efficiently convert butenoic acid into R-3-aminobutyric acid. After only 24 h of reaction, the conversion rate is as high as ≥98%, and the ee value is ≥99.9%. The conversion efficiency is greatly improved, the reaction time is shortened, and the production costs are reduced. The method features a high yield, a high conversion rate, low costs, a short production cycle, a simple process, ease of enlargement, suitability for mass production and the like.