Production and use of compositions comprising high concentrations of vitamin B12 activity
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United States of America Patent
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Feb 13, 2001
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app pub date -
Jan 19, 1999
filing date -
Aug 12, 1996
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Abstract
The present invention provides a process for the preparation of a composition comprising natural vitamin B12, wherein said process comprises the steps of: a) obtaining microbial cells containing natural vitamin B12, b) causing opening of the microbial cells such that at least part of the soluble content of the cells comprising vitamin B12 is released in a liquid in which the cells are contained, c) separating the opened cells and the liquid comprising the vitamin B12, d) preparing a mixture of the vitamin B12 and at least a part of the opened cells, wherein the mixture has a vitamin B12 concentration on dry matter in excess of 0.1% (w/w).
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