Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/1145
Title: Biobutanol production from rice straw by a non acetone producing Clostridium sporogenes BE01
Authors: Lalitha Devi, G
Binod, P
Sajna, K V
Kuttiraja, M
Pandey, A
Rajeev K Sukumaran
Keywords: Biobutanol
Detoxification
Clostridium sporogenes
ABE fermentation
Rice straw hydrolysate
Issue Date: 2013
Publisher: Elsevier
Citation: Bioresource Technology 145:182–187;Oct 2013
Abstract: Biobutanol from lignocellulosic biomass has gained much attention due to several advantages over bioethanol. Though microbial production of butanol through ABE fermentation is an established technology, the use of lignocellulosic biomass as feedstock presents several challenges. In the present study, biobutanol production from enzymatic hydrolysate of acid pretreated rice straw was evaluated using Clostridium sporogenes BE01. This strain gave a butanol yield of 3.43 g/l and a total solvent yield of 5.32 g/l in rice straw hydrolysate supplemented with calcium carbonate and yeast extract. Hydrolysate was analyzed for the level of inhibitors such as acetic acid, formic acid and furfurals which affect the growth of the organism and in turn ABE fermentation. Methods for preconditioning the hydrolysate to remove toxic end products were done so as to improve the fermentation efficiency. Conditions of ABE fermentation were fine tuned resulting in an enhanced biobutanol reaching 5.52 g/l.
URI: http://ir.niist.res.in:8080/jspui/handle/123456789/1145
Appears in Collections:2013

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