Butanol production from thin stillage using Clostridium pasteurianum

Title
Butanol production from thin stillage using Clostridium pasteurianum
Authors
안재형상병인엄영순
Keywords
butanol; stillage; ethanol; Glycerol; Fermentation
Issue Date
2011-04
Publisher
Bioresource technology
Citation
VOL 102, NO 7, 4934-4937
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.
URI
http://pubs.kist.re.kr/handle/201004/39478
ISSN
0960-8524
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE