Production of S-Methyl Thioacetate from Methyl Mercaptan by Brewers Yeast

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概要

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• S-Methyl thioacetate (MeSAc) production by brewers yeast from methyl mercaptan (MeSH) was investigated under various conditions. At optimum, 98 mg/liter of MeSAc was produced from 500 mg/liter of MeSH contained in culture broth. The MeSAc level in yeast growth mediumwas increased with increasing MeSH at relatively low levels (10 to 500 mg/liter). However, higher MeSH levels in medium (over 1 g/liter) inhibited yeast growth, and no MeSAc was produced. MeSAc was formed readily by incubating MeSH with yeast resting cells. Furthermore, S-ethyl or S-n-propyl thioacetate accumulated in yeast cell suspension when ethyl or n-propyl mercaptan, respectively, was incubated with resting cells. MeSAc was also produced from L-methionine by brewers yeast, but its formation was dramatically inhibited by copper ions. This finding suggests that MeSHis an intermediate product between L-methionine and MeSAc.

• 社団法人 日本農芸化学会の論文

著者

• MATSUI SHIN-ICHI

  Central Research Laboratories, Asahi Breweries Ltd.

• AMAHA Mikio

  Central Research Laboratories, Asahi Breweries, Ltd.

関連論文

• CHARACTERISTIC OF ANTINOCICEPTIVE EFFECT OF A TETRAPEPTIDE, Asn-Ala-Gly-Ala (NAGA)
• Production of S-Methyl Thioacetate from Methyl Mercaptan by Saccharomyces cerevisiae
• Production of S-Methyl Thioacetate from Methyl Mercaptan by Brewers Yeast

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