Document Detail


Impact of an acid fungal protease in high gravity fermentation for ethanol production using Indian sorghum as a feedstock.
MedLine Citation:
PMID:  23292745     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
This study evaluated the conventional jet cooking liquefaction process followed by simultaneous saccharification and fermentation (SSF) at 30% and 35% DS (dry solids) concentration of Indian sorghum feedstock for ethanol production, with addition of acid fungal protease or urea. To evaluate the efficacy of thermostable alpha-amylase in liquefaction at 30% and 35% DS concentration of Indian sorghum, liquefact solubility, higher dextrins and fermentable sugars were analyzed at the end of the process. The liquefact was further subjected to SSF using yeast. In comparison with urea, addition of an acid fungal protease during SSF process was observed to accelerate yeast growth (μ), substrate consumption (Q(s) ), ultimately ethanol yield based on substrate (Y(p/s) ) and ethanol productivity based on fermentation time (Q(p) ). The fermentation efficiency and ethanol recovery were determined for both concentrations of Indian sorghum and found to be increased with use of acid fungal protease in SSF process. © 2013 American Institute of Chemical Engineers Biotechnol. Prog., 2013.
Authors:
V Gohel; G Duan; V B Maisuria
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-7
Journal Detail:
Title:  Biotechnology progress     Volume:  -     ISSN:  1520-6033     ISO Abbreviation:  Biotechnol. Prog.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-7     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8506292     Medline TA:  Biotechnol Prog     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2013 American Institute of Chemical Engineers (AIChE).
Affiliation:
DuPont Industrial Bioscience, Danisco (India) Pvt. Ltd., Plot No -46, Roz-Ka-Meo Industrial Area, Sohna,Tehsil NUH, District-GURGAON -122 103 INDIA. vipul.gohel@dupont.com.
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