Comparative fermentability of enzymatic and acid hydrolysates of steam-pretreated aspenwood hemicellulose by Pichia stipitis CBS 5776 |
| |
Authors: | J Jeffrey Wilson Lise Deschatelets and Nora K Nishikawa |
| |
Institution: | (1) Biotechnology and Chemistry Department, Forintek Canada Corporation, 800 Montreal Road, K1G 3Z5 Ottawa, Ontario, Canada |
| |
Abstract: | Summary Enzymatic hydrolysates of hemicellulose from steam-pretreated aspenwood were more fermentable than the acid hydrolysate after rotoevaporation or ethyl acetate extraction treatments to remove acetic acid and sugar- and lignin-degradation products prior to fermentation by Pichia stipitis CBS 5776. Total xylose and xylobiose utilization from 5.0% (w/v) ethyl acetate extracted enzymatic hydrolysate was observed with an ethanol yield of 0.47 g ethanol/g total available substrate and an ethanol production rate of 0.20 g·l-1 per hour in 72 h batch fermentation. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |