木材糖化の工業化に關する研究 (第11報) : 酒精発酵殘糖の酵母原料としての利用

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As the wood hydrolyzate contains some organic acids, it can not so strongly convert strach to glucose as single sulphuric acid solution, but almost all sweet potato plup is hydrolyzed at a pressure of 35 kg/cm^2 in 30 min. This sugar solution can be fermented by the alcohol yeast to about 69% of the theoretical yield, and there remains only about 2% of residual sugar.Using this sugar, experiments were carried out to culture the pentose-assimilating yeast, such as Torula utilis, Mycotorula japonica, etc. The best result was obtained with Mycotorula japonica, and the yield was, on the average, 43.02% of dry yeast on the basis of the residual sugar. When the waste solution was neutralized until PH 6 with CaCo_3 the average yield of dry yeast was 46.6%.
社団法人日本生物工学会の論文
1953-04-15