炭酸固定発酵に関する研究 : (第7報) Schizophyllum communeのL-Malic acid発酵における炭素源としての尿素

概要

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As previously reported, when urea was added as the nitrogen source to the medium, evenif CaCO_3 was omitted, Schizophyllum commune accumulated a significant amount of L-malic acid. The amount of acid was increased correspondingly to the amount of urea. Moreover, it was revealed that there was an almost linear dimension relationship between the yield, percent ratio of L-malate to glucose consumed, and the amount of urea added in the range of 0-2.1g/100ml.The yield was not affected by equalizing the nitrogen concentration by addition of NH_4NO_3 or (NH_4)_2SO_4 and by pH adjusting.These results suggest that CO moiety of urea would be incorporated into β carboxy group of L-malic acid by CO_2-fixing fermentation of the mold.
社団法人日本生物工学会の論文
1967-07-25