Improved SSF-cellulosic ethanol production by the cellobiose fermenting yeast Kluyveromyces marxianus G2-16-1

Ethanol production from a cellulosic substrate by the simultaneous saccharification and fermentation (SSF) process was compared between the thermotolerant cellobiose fermenting yeast, Kluyveromyces marxianus G2-16-1, and the thermotolerant Saccharomyces cerevisiae G5-7-2 strain that had almost same...

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Main Authors: Ancharida Akaracharanya, Kridsana Krisomdee, Vasana Tolieng, Vichien Kitpreechavanich, Somboon Tanasupawat
Format: บทความวารสาร
Language:English
Published: Science Faculty of Chiang Mai University 2019
Online Access:http://it.science.cmu.ac.th/ejournal/dl.php?journal_id=7357
http://cmuir.cmu.ac.th/jspui/handle/6653943832/63795
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-637952019-05-07T09:57:18Z Improved SSF-cellulosic ethanol production by the cellobiose fermenting yeast Kluyveromyces marxianus G2-16-1 Ancharida Akaracharanya Kridsana Krisomdee Vasana Tolieng Vichien Kitpreechavanich Somboon Tanasupawat Ethanol production from a cellulosic substrate by the simultaneous saccharification and fermentation (SSF) process was compared between the thermotolerant cellobiose fermenting yeast, Kluyveromyces marxianus G2-16-1, and the thermotolerant Saccharomyces cerevisiae G5-7-2 strain that had almost same efficiency to produce ethanol from glucose, as well as between them. The ethanol productivity of K. marxianus G2-16-1 from the lignocellulosic fiber of cassava waste pulp was 0.27 g L-1 h-1, some 1.17-fold higher than that for S. cerevisiae G5-7-2 (0.23 g L-1 h-1). Enhancement of the end-product inhibition effect of cellulase by the addition of 10% (w/v) carboxymethyl cellulose to increase the amount of digestible cellulose substrate and a two-fold increased level of cellulase into the SSF-cellulosic fermentation process increased the ethanol productivity of K. marxianus G2-16-1 1.78-fold to 0.48 g L-1 h-1, but decreased that for S. cerevisiae G5-7-2 to 0.21 g L-1 h-1. The co-culture of K. marxianus G2-16-1 with S. cerevisiae G5-7-2 could increase the ethanol productivity of S. cerevisiae G5-7-2 from 0.21 to 0.42 g L-1 h-1. Thus K. marxianus G2-16-1, which can hydrolyze cellobiose to glucose, is therefore able to accelerate the ethanol production rate from a cellulosic substrate in the SSF process. 2019-05-07T09:57:18Z 2019-05-07T09:57:18Z 2016 บทความวารสาร 0125-2526 http://it.science.cmu.ac.th/ejournal/dl.php?journal_id=7357 http://cmuir.cmu.ac.th/jspui/handle/6653943832/63795 Eng Science Faculty of Chiang Mai University
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
language English
description Ethanol production from a cellulosic substrate by the simultaneous saccharification and fermentation (SSF) process was compared between the thermotolerant cellobiose fermenting yeast, Kluyveromyces marxianus G2-16-1, and the thermotolerant Saccharomyces cerevisiae G5-7-2 strain that had almost same efficiency to produce ethanol from glucose, as well as between them. The ethanol productivity of K. marxianus G2-16-1 from the lignocellulosic fiber of cassava waste pulp was 0.27 g L-1 h-1, some 1.17-fold higher than that for S. cerevisiae G5-7-2 (0.23 g L-1 h-1). Enhancement of the end-product inhibition effect of cellulase by the addition of 10% (w/v) carboxymethyl cellulose to increase the amount of digestible cellulose substrate and a two-fold increased level of cellulase into the SSF-cellulosic fermentation process increased the ethanol productivity of K. marxianus G2-16-1 1.78-fold to 0.48 g L-1 h-1, but decreased that for S. cerevisiae G5-7-2 to 0.21 g L-1 h-1. The co-culture of K. marxianus G2-16-1 with S. cerevisiae G5-7-2 could increase the ethanol productivity of S. cerevisiae G5-7-2 from 0.21 to 0.42 g L-1 h-1. Thus K. marxianus G2-16-1, which can hydrolyze cellobiose to glucose, is therefore able to accelerate the ethanol production rate from a cellulosic substrate in the SSF process.
format บทความวารสาร
author Ancharida Akaracharanya
Kridsana Krisomdee
Vasana Tolieng
Vichien Kitpreechavanich
Somboon Tanasupawat
spellingShingle Ancharida Akaracharanya
Kridsana Krisomdee
Vasana Tolieng
Vichien Kitpreechavanich
Somboon Tanasupawat
Improved SSF-cellulosic ethanol production by the cellobiose fermenting yeast Kluyveromyces marxianus G2-16-1
author_facet Ancharida Akaracharanya
Kridsana Krisomdee
Vasana Tolieng
Vichien Kitpreechavanich
Somboon Tanasupawat
author_sort Ancharida Akaracharanya
title Improved SSF-cellulosic ethanol production by the cellobiose fermenting yeast Kluyveromyces marxianus G2-16-1
title_short Improved SSF-cellulosic ethanol production by the cellobiose fermenting yeast Kluyveromyces marxianus G2-16-1
title_full Improved SSF-cellulosic ethanol production by the cellobiose fermenting yeast Kluyveromyces marxianus G2-16-1
title_fullStr Improved SSF-cellulosic ethanol production by the cellobiose fermenting yeast Kluyveromyces marxianus G2-16-1
title_full_unstemmed Improved SSF-cellulosic ethanol production by the cellobiose fermenting yeast Kluyveromyces marxianus G2-16-1
title_sort improved ssf-cellulosic ethanol production by the cellobiose fermenting yeast kluyveromyces marxianus g2-16-1
publisher Science Faculty of Chiang Mai University
publishDate 2019
url http://it.science.cmu.ac.th/ejournal/dl.php?journal_id=7357
http://cmuir.cmu.ac.th/jspui/handle/6653943832/63795
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