Nystatin-resistant Aspergillus terreus CLS 247-13, KCTC 0673BP for preparing triol heptanoic acid employing the same
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United States of America Patent
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Jul 30, 2002
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N/A
app pub date -
Jun 26, 2001
filing date -
Oct 29, 1999
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Expired
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Abstract
A nystatin-resistant mutant microorganism belonging to Aspegillus genus is provided for preparing triol heptanoic acid, a precursor of 3-hydroxy-3-methylglutaryl-CoA reductase inhibitor. A mutant Aspergillus terreus CLS247-13, KCTC 0673 BP is prepared by treating Aspergillus terreus CLS216-7, KCTC 0359 BP with ultraviolet ray or chemical mutagens. The mutant provides high productivity (at least 11.5 g/L, 95/6% of the total product) of triol heptanoic acid, while reducing (less than 0.53 g/L, 4.4% of total product) productivity of triol heptanoic acid analogues. Since the nystatin-resistant mutant strain CLS347-13 has a capability of producing triol heptanioc acid with a high yield in a short period of culture time compared with known triol heptanoic acid producing strains, it can be widely used in industrial applications.
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