Membrane-assisted extractive butanol fermentation by Clostridium saccharoperbutylacetonicum N1-4 with 1-dodecanol as the extractant

Shigemitsu Tanaka, Yukihiro Tashiro, Genta Kobayashi, Toru Ikegami, Hideyuki Negishi, Keiji Sakaki

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

A polytetrafluoroethylene (PTFE) membrane was used in membrane-assisted extractive (MAE) fermentation of acetone-butanol-ethanol (ABE) by Clostridium saccharoperbutylacetonicum N1-4. The growth inhibition effects of 1-dodecanol, which has a high partition coefficient for butanol, can be prevented by employing 1-dodecanol as an extractant when using a PTFE membrane. Compared to conventional fermentation, MAE-ABE fermentation with 1-dodecanol decreased butanol inhibition and increased glucose consumption from 59.4 to 86.0g/L, and total butanol production increased from 16.0 to 20.1g/L. The maximum butanol production rate increased from 0.817 to 0.979g/L/h. The butanol productivity per membrane area was remarkably high with this system, i.e., 78.6g/L/h/m 2. Therefore, it is expected that this MAE fermentation system can achieve footprint downsizing.

Original languageEnglish
Pages (from-to)448-452
Number of pages5
JournalBioresource Technology
Volume116
DOIs
Publication statusPublished - Jul 1 2012

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

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