Fuel Ethanol Production from Wet Oxidised Corn Stover by S. Cerevisiae

Abstract:

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In order to find out appropriate process for ethanol production from corn stover, wet oxidation(195°C,15 minutes)and simultaneous saccharification and fermentation (SSF) was carried out to produce ethanol. The results showed that the cellulose recovery of 92.9% and the hemicellulose recovery of 74.6% were obtained after pretreatment. 86.5% of cellulose was remained in the solid cake . After 24h hydrolysis at 50°C using cellulase(Cellubrix L),the achieved conversion of cellulose to glucose was 64.8%. Ethanol production was evaluated from dried solid cake and the hydrolysate was employed as liquid fraction . After 142 h of SSF with substrate concentration of 8% (W/V), ethanol yield of 73.1 % of the theoretical based on glucose in the raw material was obtained by S. cerevisiae(ordinary baker’ yeast) . The corresponding ethanol concentration and volumetric productivity were 17.2g/L and 0.121g/L.h respectively. The estimated total ethanol production was 257.7 kg/ton raw material by assuming consumption of both C-6 and C-5. No obvious inhibition effect occurred during SSF. These instructions give you the basic guidelines for preparing papers for WCICA/IEEE conference proceedings.

Info:

Periodical:

Advanced Materials Research (Volumes 343-344)

Edited by:

David Wang

Pages:

963-967

DOI:

10.4028/www.scientific.net/AMR.343-344.963

Citation:

Z. Qiang and A. B. Thomsen, "Fuel Ethanol Production from Wet Oxidised Corn Stover by S. Cerevisiae", Advanced Materials Research, Vols. 343-344, pp. 963-967, 2012

Online since:

September 2011

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Price:

$35.00

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