C - Chemistry – Metallurgy – 12 – N
Patent
C - Chemistry, Metallurgy
12
N
195/14, 195/1.23
C12N 15/60 (2006.01) C12C 11/00 (2006.01) C12G 1/022 (2006.01) C12N 1/19 (2006.01) C12N 9/88 (2006.01) C12N 15/81 (2006.01)
Patent
CA 1302322
ABSTRACT OF THE DISCLOSURE DNA strand having an ability in biotechnological production of .alpha.-acetolactate decarboxylase is disclosed. The DNA strand is characterized in that it has a nucleotide sequence coding for a polypeptide whose amino acid sequence is substantially from A to B of Fig. 1 and which has .alpha.-acetolactate decarboxcylase activity. Also disclosed is a yeast which belongs to Saccharomyces cerevisiae and which has been transformed by the DNA strand. The yeast is characterized by the fact that its .alpha.-acetolactate producing ability is reduced, and will thus produce an, alcoholic liquor such as beer which contains no or little diacetyls which have come from their precursor, namely .alpha.-acetolactate.
597414
Inoue Takashi
Tanaka Junichi
Yamano Shigeyuki
Fetherstonhaugh & Co.
Kirin Beer Kabushiki Kaisha
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