Improved ethanol tolerance and production in strains ofClostridium thermocellum

✍ Scribed by K. Sudha Rani; M. V. Swamy; D. Sunitha; D. Haritha; G. Seenayya

• Book ID: 104723727
• Publisher: Springer
• Year: 1996
• Tongue: English
• Weight: 310 KB
• Volume: 12
• Category: Article
• ISSN: 1573-0972
• DOI: 10.1007/bf00327802

✦ Synopsis

Two Clostridium thermocellum strains were improved for ethanol tolerance, to 5% (v/v), by gradual adaptation and mutation. The best mutant gave an ethanol yield of 0.37 g/g substrate, with a growth yield 1.5 times more than its parent. Accumulation of acids and reducing sugars by the mutant strain with 5% (v/v) ethanol was lower than that of the parent strain with 1.5% (v/v) ethanol.