Method of reducing L-malic acid in juice medium
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United States of America Patent
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Jun 18, 1991
Issued Date -
N/A
app pub date -
Dec 23, 1987
filing date -
Nov 13, 1985
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Expired
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Abstract
A mutant strain of Schizosaccharomyces #442 (ATCC46954) requiring both glucose and L-malic acid for growth has been produced which is capable of completely utilizing L-malic acid without substantial depletion of glucose. The mutant strain is known as Schizosaccharomyces malidevorans Rodriguez-Thornton #11 (ATCC20771). The yeast is capable of being used to remove L-malic acid from mediums including both L-malic acid and glucose thus making it possible to remove L-malic acid from juices without affecting sweetness, or from grape juices during wine-making conditions without affecting the quantities of glucose available for alcohol fermentation. The invention extends to juice products and wine made using such mutant strains.
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