Production of Fuel Ethanol from Hydrotherm-Pretreated Corn Stover by Pichia stipitis

Qiang Zhang

doi:10.4028/www.scientific.net/AMR.641-642.943

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 641-642Production of Fuel Ethanol from...

Production of Fuel Ethanol from Hydrotherm-Pretreated Corn Stover by Pichia stipitis

Abstract:

Corn stover is an abundant raw material for fuel ethanol production. Finding out the appropriate process for ethanol production will be possible to achieve industrilization. Hydrothermal pretreatment (195°C,15min) and simultaneous saccharification and fermentation (SSF) were adopted to produce ethanol from corn stover. The results showed that 86.5% of cellulose were remained in solid cake and most of hemicellulose were solubilized after pretreatment. The highest ethanol concentrationl of 12.12 g/ L was achieved at initial pH of 5.5，temperature 30°C and 130 rpm shaking rate with substrate concentration of 5%(w/v) by Pichia stipitis58376 after 192 h.The corresponding volumetric productivity were 0.065g/Lh .

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Periodical:

Advanced Materials Research (Volumes 641-642)

Pages:

943-946

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.641-642.943

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Online since:

January 2013

Authors:

Qiang Zhang

Keywords:

Corn Stover, Ethanol, Hydrothermal Pretreatment, Pichia stipitis

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