クエン酸醗酵に関する研究(第6報) : 数種のクエン酸生産培地に於ける酸生成曲線の比較並びにメタノールの菌形態及び呼吸に及ぼす影響

概要

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1) In citric acid production from the synthetic or semi-synthetic and cane molasses medium with methanol 3 per cent, all of them gave almost the same and good yield, but they differed greatly in time up to their maximum yields. The cane molasses medium required the shortest time, 6 days, and the synthetic medium the longest, 11 days.2) In fermentations of the synthetic and the semi-synthetic medium with methanol 3 per cent, they were both characterized not only by good yield of acid, but also clump of submerged mycelium under a microscope. On the contrary, the semi-synthetic medium without methanol gave the low yield of acid and the submerged mycelium was filamentous.3) Using a few kinds of acid production media, the amount of oxygen uptake by Asp. niger was compared. The cane molasses medium gave maximum amount and the synthetic medium did the minimum.4) In case that methanol addition remarkably stimulates the production of citric acid from some medium, it would somewhat inhibit the oxygen uptake by Asp. niger.
社団法人日本生物工学会の論文
1960-12-15