| 发明名称 | Process for producing poly-γ-glutamic acid having high optical purity | ||
| 摘要 | It is an objective of the present invention to provide a process for efficiently producing poly-γ-glutamic acid having a high L-glutamic acid content and excellent quality. The process for producing poly-γ-glutamic acid according to the present invention is characterized in using a bacterium belonging to species Bacillus megaterium. | ||
| 申请公布号 | US8927236(B2) | 申请公布日期 | 2015.01.06 |
| 申请号 | US200712223067 | 申请日期 | 2007.01.31 |
| 申请人 | Kochi University | 发明人 | Ashiuchi Makoto;Shimizu Kazuki |
| 分类号 | C12P13/14;C12R1/11;C12P21/02 | 主分类号 | C12P13/14 |
| 代理机构 | Bacon & Thomas, PLLC | 代理人 | Bacon & Thomas, PLLC |
| 主权项 | 1. A process for producing poly-γ-glutamic acid, comprising: (a) preculturing Bacillus megaterium WH320 in a first culture medium having a sodium chloride concentration of 0.05% by mass or less; (b) cultivating the Bacillus megaterium WH320 in a second culture medium having a high sodium chloride concentration of 1.5% by mass or more; and (c) recovering from the second culture medium the poly-γ-glutamic acid released by the Bacillus megaterium WH320, wherein the poly-γ-glutamic acid comprises 90% or more L-glutamic acid. | ||
| 地址 | Kochi JP | ||