发明名称 |
METHOD FOR PREPARING 2-PYRROLIDONE USING BIOMASS |
摘要 |
The present invention relates to a method for preparing 2-pyrrolidone using biomass, comprising: a step (a) of culturing a microorganism which contains glutamate decarboxylase as a whole-cell catalyst in a culture medium containing glutamic acid or glutamate so as to prepare 4-amino butyric acid; a step (b) of filtering the 4-amino butyric acid from the culture medium in order to obtain the 4-amino butyric acid; and a step (c) of converting the 4-amino butyric acid into 2-pyrrolidone. The present invention provides a series of processes for preparing 2-pyrrolidone from glutamic acid or glutamate using biomass. According to the present invention, 4-amino butyric acid is prepared using a microorganism as a whole cell, and preferably, 4-amino butyric acid which has not undergone a complicated refining process such as a crystallization process is directly used to prepare 2-pyrrolidone at a high yield rate in an economically advantageous manner. According to the present invention, 2-pyrrolidone may be mass-produced at a high yield rate and low production costs. The method of the present invention simplifies processes for preparing 2-pyrrolidone, and thus is suitable for mass production at an industrial scale. |
申请公布号 |
EP2623608(A2) |
申请公布日期 |
2013.08.07 |
申请号 |
EP20110829626 |
申请日期 |
2011.09.30 |
申请人 |
DAESANG CORPORATION |
发明人 |
PARK, DONG CHEOL;KING, KI KUEON;PARK, HYUN JUNG;KIM, SEO HYOUNG;OH, JAE YOUNG |
分类号 |
C12P13/00;C07D207/26;C12N1/20;C12N9/88;C12P17/10;C12R1/01 |
主分类号 |
C12P13/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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