清酒釀造とビタミンB群の關係 (第4報) : 7號酵母及び麹菌によるビオス性ビタミンの合成と分解

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In this paper, he authors deal with the biosyntheses of pantothenate, biotin, inositol, vit. B_6 and thiamine by Sacch. sake(strain No.7) and two strains of Asp. oryzae in the vitamin-free medium and the media containing vitamins in suboptimal and excessive amounts, respectively.It was found that both the yeast and mold could sysntesize all the five vitamins, when they were absent or present in relatively small amounts in media.As the amounts of the added vitamins increased, the decomposition occurred and the recovery percentage decreased.The critical concentration varied with the species of the micro-organisms.Preliminary experiment was done on he forms of biotin-like substance in the filtrate of the culture solution of Asp. oryzae.It appears that biocytin and biotin-L-sulfoxide are predominant.
公益社団法人日本生物工学会の論文
1955-04-15