发明名称 |
GESTABILISEERD GLUCOSE-ISOMERASE-ENZYMCONCEN- TRAAT EN WERKWIJZE VOOR DE BEREIDING DAARVAN. |
摘要 |
A stabilized glucose isomerase concentrate is prepared by contacting an aqueous mixture containing cell-free glucose isomerase and a water miscible organic solvent such as 2-propanol with a magnesium salt to form an enzyme-magnesium precipitate. The cell-free glucose isomerase may be prepared by mixing cells containing intracellular glucose isomerase with the water miscible organic solvent and digesting the cells with a lysozyme enzyme preparation. The stabilized concentrate contains magnesium and the water miscible organic solvent, and retains at least about 95% of its initial isomerase activity when stored at 26 DEG C for up to 30 days and about 80% of its initial isomerase activity when stored at 18 DEG C for up to one year. |
申请公布号 |
NL7703052(A) |
申请公布日期 |
1977.09.21 |
申请号 |
NL19770003052 |
申请日期 |
1977.03.21 |
申请人 |
CPC INTERNATIONAL INC. TE ENGLEWOOD CLIFFS, NEW JERSEY, VER.ST.V.AM. |
发明人 |
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分类号 |
C12N9/92;C12N9/96;C13K11/00;(IPC1-7):12D13/10;07G7/02 |
主分类号 |
C12N9/92 |
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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