Screening of non-Ionic Surfactant for Enhancing Biobutanol Production

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• 作者：Pradip B. Dhamole ; Ravindra G. Mane ; Hao Feng
• 关键词：Butanol ; Extractive fermentation ; Surfactant ; Product inhibition
• 刊名：Applied Biochemistry and Biotechnology
• 出版年：2015
• 出版时间：November 2015
• 年：2015
• 卷：177
• 期：6
• 页码：1272-1281
• 全文大小：434 KB
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• 作者单位：Pradip B. Dhamole (1) (2)
  Ravindra G. Mane (2)
  Hao Feng (3)
  
  1. Chemical Engineering Department, Visvesvaraya National Institute of Technology, Nagpur, MS, India
  2. Birla Institute of Technology & Science, Pilani-Hyderabad Campus, R.R. District, Hyderabad, Telangana, India
  3. Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, Urbana-Champaign, IL, USA
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Biotechnology
  Biochemistry
  
• 出版者：Humana Press Inc.
• ISSN：1559-0291

文摘

This work deals with finding a suitable non-ionic surfactant which has high butanol capturing capacity and can be separated at a temperature close to room temperature and does not extract any intermediates or substrate (i.e., glucose). Importantly, it should be biocompatible, and its separation from the aqueous phase is not affected by other fermentation products. Hence, a pool of non-ionic Pluronic surfactants (L31, L61, L62D, L62LF, L62, L81, L92, L101, L121, L64, P65, P84, P104, P105) were selected for the study. Screening of the surfactant was done based on its hydrophile-lipophile balance (HLB) value, butanol capturing capacity (BCC), and cloud point temperature. Among the various surfactant investigated, L62D captured maximum amount of butanol (0.68 g/g of surfactant). Also, the cloud point temperature of L62D is close to room temperature (28.7 °C). Biocompatibility studies were carried out by conducting fermentation in presence of 3 % L62D which resulted in 148 % increase in butanol production as compared to control (without surfactant). Further, the fermentation products did not have strong influence on phase separation. Keywords Butanol Extractive fermentation Surfactant Product inhibition