This is a type of fermentation that produces butanol, acetone, etc. from carbohydrates using anaerobic bacteria such as Clostridium butyricum and C. acetobutylicum , which belong to the Clostridium genus. At the same time, ethanol, butyric acid, acetic acid, carbon dioxide, and hydrogen gas are also produced. This fermentation is carried out under oxygen-free conditions, as the producing bacteria are killed by oxygen. The ratio of products can be changed by selecting the type of bacteria and fermentation conditions, and it is also possible to produce mainly butyric acid, in which case it is called butyric acid fermentation. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
嫌気性細菌の1種であるクロストリディウム属のClostridium butyricum,C.acetobutylicumなどにより糖質からブタノール,アセトンなどを生成する発酵で,同時にエタノール,酪酸,酢酸,炭酸ガス,水素ガスなども生成する。生産菌が酸素によって死滅する性質を有するため,本発酵は無酸素の条件下で行われる。生産物の比率は菌の種類,発酵条件を選択することによって変化し,主として酪酸を生成するようにすることも可能であり,その場合には酪酸発酵と称される。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
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