Genetically modified lactic acid bacteria having modified diacetyl reductase activities
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United States of America Patent
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Jul 2, 2002
Grant Date -
N/A
app pub date -
Apr 21, 1999
filing date -
Apr 21, 1998
priority date (Note) -
Expired
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Abstract
Genetically modified lactic acid bacteria having a reduced or lacking or enhanced diacetyl reductase activity, acetoin reductase activity and/or butanediol dehydrogenase activity are provided. Such bacteria are used in starter cultures in the production of food products including dairy products where it is desired to have a high content of diacetyl and for reducing or completely removing diacetyl in beverages including beers, fruit juices and certain types of wine, where the presence of diacetyl is undesired.
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