Sec-Butyl Alcohol資化性酵母の培養上の諸性質について : 石油化学製品の醗酵に関する研究 (第7報)

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Investigation of the culture characteristics of a yeast, Trichosporon capitatum strain no. 320,which is capab le of growing on sec-butyl alcohol, was carried out. The optimal initial pH for the microbial growth was 6.0-8.0. The maximum growth rate (μ_<max> [hr^<-1>]) and microbial yield were ca. 0.207 and 0.56 respectively, when sec-butyl alcohol was used as the carbon source. The amino acid content of dry cell matter were almost satisfactory for feed protein. Strain no. 320 accumulated methyl ethyl ketone at the initial stage of growth when it was cultivated in medium containing sec-butyl alcohol, and could utilize methyl ethyl ketone as a carbon source. These results led us to the inferenece that the strain has sec-butyl alcohol oxidizing enzymes which catalyze the conversion of sec-butyl alcohol to methyl ethyl ketone, alcohol dehydrogenase was confirmed in the cell free extracts.
社団法人日本生物工学会の論文
1975-09-25