发明名称 |
Method for the fermentative preparation of polysaccharides, in particular xanthane |
摘要 |
For the fermentative preparation of polysaccharides, in particular xanthane, water, production medium (sugars, nutrient salts), and an inoculation material of a suitable aerobic bacterium are mixed in a reactor as reaction components, the production medium being exposed to fermentation while an oxygen-containing gas is being supplied. The object is to avoid the usual low yield of such a process and to reject an expensive and sensitive alternative construction (circulation tube). According to the invention, the reaction components are introduced into a reactor vessel in a circulating flow by means of pumping means, which circulating flow comprises a rising flow and a descending flow which are separated from each other by one or more partitions disposed in the reactor vessel. The mixing is brought about because the rising flow and/or the descending flow is passed essentially in the form of a plug flow through one or more static in-line mixers.
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申请公布号 |
US4891318(A) |
申请公布日期 |
1990.01.02 |
申请号 |
US19870059590 |
申请日期 |
1987.06.08 |
申请人 |
COOPERATIEVE VERENIGING SUIKER UNIE U.S. |
发明人 |
OOSTERHUIS, NICOLAAS M. G.;KOERTS, KEES |
分类号 |
B01F5/10;B01J8/04;C12M1/04;C12M1/08;C12P19/06;C12R1/64 |
主分类号 |
B01F5/10 |
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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