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Cellulose ethanol production from waste newsprint by simultaneous saccharification and fermentation using Saccharomyces cerevisiae KNU5377

Paper ID Volume ID Publish Year Pages File Format Full-Text
35775 45106 2010 6 PDF Available
Title
Cellulose ethanol production from waste newsprint by simultaneous saccharification and fermentation using Saccharomyces cerevisiae KNU5377
Abstract

A thermotolerant ethanol-fermenting yeast, Saccharomyces cerevisiae KNU5377, isolated from a sludge of a local industrial complex stream in Korea, was evaluated for its capability for lignocellulosic ethanol production from waste newsprint in high temperature. In this fermentation, most of dry-defibrated waste newspaper was first saccharified at 50 °C for 108 h using a commercial cellulase and, then with the last addition of dry-defibrated newsprints to the pre-saccharified broth, simultaneous saccharification and fermentation (SSF) of 1.0 L of reaction mixture was carried out at 40 °C, slowly being dropped from 50 °C, for further 72 h in a 5 L fermentor by inoculating the overnight culture of KNU5377. The maximum production of 8.4% (v/v) ethanol was obtained when 250 g (w/v)/L of dry-defibrated waste newspaper was used for ethanol production by SSF. These results suggest that S. cerevisiae KNU5377 is very useful for cellulose ethanol production by the SSF system.

Keywords
Cellulose ethanol fermentation; Simultaneous saccharification and fermentation; SSF; Defibrated waste newsprint; Thermotolerant Saccharomyces cerevisiae
First Page Preview
Cellulose ethanol production from waste newsprint by simultaneous saccharification and fermentation using Saccharomyces cerevisiae KNU5377
Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 45, Issue 4, April 2010, Pages 487–492
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering