Butanol production from thin stillage using Clostridium pasteurianum
- Title
- Butanol production from thin stillage using Clostridium pasteurianum
- Author
- 상병인
- Keywords
- Stillage; Glycerol; Butanol; Fermentation
- Issue Date
- 2011-04
- Publisher
- ELSEVIER SCI LTD
- Citation
- BIORESOURCE TECHNOLOGY; APR 2011, 102 7, p4934-p4937, 4p.
- Abstract
- The production of butanol from thin stillage by Clostridium pasteurianum DSM 525 was evaluated in the paper. At initial pH values ranging from 5.0 to 7.0 C pasteurianum DSM 525 produced 6.2-7.2 g/L of butanol utilizing glycerol in thin stillage as the main carbon source, with yields of 0.32-0.44 g butanol produced/g glycerol consumed, which are higher than previously reported yields (e.g., 0.14-0.31 g butanol/g glycerol, Biebl, 2001). Lactic acid in the thin stillage acted as a buffering agent, maintaining the pH of the medium within a range of 5.7-6.1. Lactic acid was also utilized along with glycerol, enhancing butanol production (6.5 g/L butanol vs. 8.7 g/L butanol with 0 and 16 g/L lactic acid, respectively). These results demonstrate the feasibility of cost-effective butanol production using thin stillage as a nutrient-containing medium with a pH buffering capacity. (C) 2011 Elsevier Ltd. All rights reserved.
- URI
- http://www.sciencedirect.com/science/article/pii/S0960852411001143?_rdoc=1&_fmt=high&_origin=gateway&_docanchor=&md5=b8429449ccfc9c30159a5f9aeaa92ffbhttp://hdl.handle.net/20.500.11754/35553
- ISSN
- 0960-8524
- DOI
- 10.1016/j.biortech.2011.01.046
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > CHEMICAL ENGINEERING(화학공학과) > Articles
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