发明名称 |
ENZYMATIC PROCESS FOR THE MANUFACTURE OF L-ASCORBIC ACID AND D-ERYTHORBIC ACID |
摘要 |
A process for producing L-ascorbic acid from 2-keto-L-gulonic acid or D-erythorbic acid from 2-keto-D-gluconic acid by contacting 2-keto-L-gulonic acid or 2-keto-D-gluconic acid, respectively, with an enzym having alpha -amylase activity in solution. The solvent for this reaction can be water, an aqueous alcohol, an organic solvent or a mixture thereof. In each case, the starting material can be in the form of the free acid, the sodium salt, or the calcium salt. |
申请公布号 |
WO03040381(A3) |
申请公布日期 |
2003.07.31 |
申请号 |
WO2002EP12157 |
申请日期 |
2002.10.31 |
申请人 |
ROCHE VITAMINS AG;HOSHINO, TATSUO;KIYASU, TATSUYA;SHINJOH, MASAKO |
发明人 |
HOSHINO, TATSUO;KIYASU, TATSUYA;SHINJOH, MASAKO |
分类号 |
C12N9/26;C12P17/04 |
主分类号 |
C12N9/26 |
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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