| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To grow and prepare a new mutant yeast suppressing generation of isoamyl alcohol but highly producing other perfume components by hybridization method. <P>SOLUTION: The new mutant yeast having new sake-producing suitability with strong fermentation potency and producing little amount of acids with bringing the produced amount of isoamyl acetate which is called a precursor material of "Mureka", an undesirable, specific sweetish smell of sake, to be small is grown and prepared by treating various fermentation yeasts to mutate by hybridizing a mutant yeast obtained from strains grown on a cerulenin-containing medium and a 5'-5'-5'-trifluoro-D,L-leucine-containing medium, and producing a large amount of ethyl capronate and isoamyl acetate, e.g., Kyokai No.1701 yeast (K-1701), especially Kyokai No.1601 yeast (K-1601) producing a large amount of ethyl capronate and little acids with Kyokai No.9 yeast (K-9). <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
