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Influence of high solid concentration on enzymatic hydrolysis and fermentation of steam-exploded corn stover biomass.
Appl Biochem Biotechnol. 2010 Jan; 160(2):360-9.AB

Abstract

Steam-exploded corn stover biomass was used as the substrate for fed-batch separate enzymatic hydrolysis and fermentation (SHF) to investigate the solid concentration ranging from 10% to 30% (w/w) on the lignocellulose enzymatic hydrolysis and fermentation. The treatment of washing the steam-exploded material was also evaluated by experiments. The results showed that cellulose conversion changed little with increasing solid concentration, and fermentation by Saccharomyces cerevisiae revealed a nearly same ethanol yield with the water-washed steam-exploded corn stover. For the washed material at 30% substrate concentration, i.e., 30% water insoluble solids (WIS), enzymatic hydrolysis yielded 103.3 g/l glucose solution and a cellulose conversion of 72.5%, thus a high ethanol level up to 49.5 g/l. With the unwashed steam-exploded corn stover, though a cellulose conversion of 70.9% was obtained in hydrolysis at 30% solid concentration (27.9% WIS), its hydrolysate did not ferment at all, and the hydrolysate of 20% solid loading containing 3.3 g/l acetic acid and 145 mg/l furfural already exerted a strong inhibition on the fermentation and ethanol production.

Authors+Show Affiliations

East China University of Science and Technology, Shanghai, China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Evaluation Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18626577

Citation

Lu, Yifeng, et al. "Influence of High Solid Concentration On Enzymatic Hydrolysis and Fermentation of Steam-exploded Corn Stover Biomass." Applied Biochemistry and Biotechnology, vol. 160, no. 2, 2010, pp. 360-9.
Lu Y, Wang Y, Xu G, et al. Influence of high solid concentration on enzymatic hydrolysis and fermentation of steam-exploded corn stover biomass. Appl Biochem Biotechnol. 2010;160(2):360-9.
Lu, Y., Wang, Y., Xu, G., Chu, J., Zhuang, Y., & Zhang, S. (2010). Influence of high solid concentration on enzymatic hydrolysis and fermentation of steam-exploded corn stover biomass. Applied Biochemistry and Biotechnology, 160(2), 360-9. https://doi.org/10.1007/s12010-008-8306-0
Lu Y, et al. Influence of High Solid Concentration On Enzymatic Hydrolysis and Fermentation of Steam-exploded Corn Stover Biomass. Appl Biochem Biotechnol. 2010;160(2):360-9. PubMed PMID: 18626577.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Influence of high solid concentration on enzymatic hydrolysis and fermentation of steam-exploded corn stover biomass. AU - Lu,Yifeng, AU - Wang,Yonghong, AU - Xu,Guoqian, AU - Chu,Ju, AU - Zhuang,Yingping, AU - Zhang,Siliang, Y1 - 2008/07/15/ PY - 2008/01/26/received PY - 2008/06/24/accepted PY - 2008/7/16/pubmed PY - 2010/4/2/medline PY - 2008/7/16/entrez SP - 360 EP - 9 JF - Applied biochemistry and biotechnology JO - Appl Biochem Biotechnol VL - 160 IS - 2 N2 - Steam-exploded corn stover biomass was used as the substrate for fed-batch separate enzymatic hydrolysis and fermentation (SHF) to investigate the solid concentration ranging from 10% to 30% (w/w) on the lignocellulose enzymatic hydrolysis and fermentation. The treatment of washing the steam-exploded material was also evaluated by experiments. The results showed that cellulose conversion changed little with increasing solid concentration, and fermentation by Saccharomyces cerevisiae revealed a nearly same ethanol yield with the water-washed steam-exploded corn stover. For the washed material at 30% substrate concentration, i.e., 30% water insoluble solids (WIS), enzymatic hydrolysis yielded 103.3 g/l glucose solution and a cellulose conversion of 72.5%, thus a high ethanol level up to 49.5 g/l. With the unwashed steam-exploded corn stover, though a cellulose conversion of 70.9% was obtained in hydrolysis at 30% solid concentration (27.9% WIS), its hydrolysate did not ferment at all, and the hydrolysate of 20% solid loading containing 3.3 g/l acetic acid and 145 mg/l furfural already exerted a strong inhibition on the fermentation and ethanol production. SN - 1559-0291 UR - https://www.unboundmedicine.com/medline/citation/18626577/Influence_of_high_solid_concentration_on_enzymatic_hydrolysis_and_fermentation_of_steam_exploded_corn_stover_biomass_ L2 - https://dx.doi.org/10.1007/s12010-008-8306-0 DB - PRIME DP - Unbound Medicine ER -