酵母製造に関する研究 : 不純物酒精の利用について (其の2)

概要

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1) Using various pH regulators, the crude alcohol-containing media were prepared for yeast culture, and yeast No. 110 was cultivated in them to know the effect of pH upon the yield of the yeast. The yields of the yeast obtained from the media containing the NaOH-KH_2PO_4 buffer as pH regulator were the greatest of all.2) The yields of Torula utilis, yeast No. 110 and Mycotorula japonica increased remarkably by the addition of the buffer, especially it was very effective when the yeasts were cultivated in the media containing the crude alcohol in high concentration. The yields of the five kinds of yeasts obtained from the media containing 1 cc of the crude alcohol were as follows : Torula utilis, yeast No. 110 and Mycotorula japonica 0.24〜0.27 g/ crude alcohol 1 cc, Rasse XII and FLEISCHMANN's yeast 0.17〜0.18 g/ crude alcohol 1 cc 3) The analytical data of the yeasts obtained from the media containing the crude alcohol as carbon source are shown in Table 6. The protein content of FLEISCHMANN's yeast was the highest of all, but from the standpoint of obtaining as much an protein as possible from an equal amount of the crude alcohol, it would be favourable to use Torula utilis or yeast No. 110.
社団法人日本生物工学会の論文
1956-04-15