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Evaluation of xylose-utilising yeasts for xylitol production from second generation ethanol vinasse and effect of agitation intensity in flask-scale xylitol production

This study aimed to select a yeast strain that effectively utilises xylose to produce xylitol from the vinasse of ethanol broth obtained from the fermentation of sugarcane bagasse hydrolysate. Eleven strains of xylose-fermenting yeasts were evaluated for their abilities to utilise xylose and produce...

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Main Authors: Sreyden Hor,, Mallika Boonmee Kongkeitkajorn,, Alissara Reungsang,
Format: Article
Language:English
Published: Penerbit Universiti Kebangsaan Malaysia 2023
Online Access:http://journalarticle.ukm.my/21543/1/S%2014.pdf
http://journalarticle.ukm.my/21543/
http://www.ukm.my/jsm/index.html
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spelling my-ukm.journal.215432023-05-09T03:11:21Z http://journalarticle.ukm.my/21543/ Evaluation of xylose-utilising yeasts for xylitol production from second generation ethanol vinasse and effect of agitation intensity in flask-scale xylitol production Sreyden Hor, Mallika Boonmee Kongkeitkajorn, Alissara Reungsang, This study aimed to select a yeast strain that effectively utilises xylose to produce xylitol from the vinasse of ethanol broth obtained from the fermentation of sugarcane bagasse hydrolysate. Eleven strains of xylose-fermenting yeasts were evaluated for their abilities to utilise xylose and produce xylitol. Two strains that showed outstanding performance in the semi-defined xylose medium were selected for further testing with a vinasse medium. Candida guilliermondii TISTR 5068 showed a superior xylitol production of 7.03 ± 0.08 g/L with the xylitol yield of 0.70 g/ gxylose when cultured in bagasse-based ethanol vinasse. The strain was further tested for its xylitol production performance when cultured at four different agitation intensities. Excessive agitation resulted in a rapid xylitol production rate but caused xylitol consumption once the xylose was depleted. Moderate agitation resulted in the highest xylitol yield of 0.79 g/gxylose. The results of this study have provided important information for the development of the xylitol production process using waste streams from cellulosic ethanol production. Penerbit Universiti Kebangsaan Malaysia 2023 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/21543/1/S%2014.pdf Sreyden Hor, and Mallika Boonmee Kongkeitkajorn, and Alissara Reungsang, (2023) Evaluation of xylose-utilising yeasts for xylitol production from second generation ethanol vinasse and effect of agitation intensity in flask-scale xylitol production. Sains Malaysiana, 52 (1). pp. 175-185. ISSN 0126-6039 http://www.ukm.my/jsm/index.html
institution Universiti Kebangsaan Malaysia
building Tun Sri Lanang Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Kebangsaan Malaysia
content_source UKM Journal Article Repository
url_provider http://journalarticle.ukm.my/
language English
description This study aimed to select a yeast strain that effectively utilises xylose to produce xylitol from the vinasse of ethanol broth obtained from the fermentation of sugarcane bagasse hydrolysate. Eleven strains of xylose-fermenting yeasts were evaluated for their abilities to utilise xylose and produce xylitol. Two strains that showed outstanding performance in the semi-defined xylose medium were selected for further testing with a vinasse medium. Candida guilliermondii TISTR 5068 showed a superior xylitol production of 7.03 ± 0.08 g/L with the xylitol yield of 0.70 g/ gxylose when cultured in bagasse-based ethanol vinasse. The strain was further tested for its xylitol production performance when cultured at four different agitation intensities. Excessive agitation resulted in a rapid xylitol production rate but caused xylitol consumption once the xylose was depleted. Moderate agitation resulted in the highest xylitol yield of 0.79 g/gxylose. The results of this study have provided important information for the development of the xylitol production process using waste streams from cellulosic ethanol production.
format Article
author Sreyden Hor,
Mallika Boonmee Kongkeitkajorn,
Alissara Reungsang,
spellingShingle Sreyden Hor,
Mallika Boonmee Kongkeitkajorn,
Alissara Reungsang,
Evaluation of xylose-utilising yeasts for xylitol production from second generation ethanol vinasse and effect of agitation intensity in flask-scale xylitol production
author_facet Sreyden Hor,
Mallika Boonmee Kongkeitkajorn,
Alissara Reungsang,
author_sort Sreyden Hor,
title Evaluation of xylose-utilising yeasts for xylitol production from second generation ethanol vinasse and effect of agitation intensity in flask-scale xylitol production
title_short Evaluation of xylose-utilising yeasts for xylitol production from second generation ethanol vinasse and effect of agitation intensity in flask-scale xylitol production
title_full Evaluation of xylose-utilising yeasts for xylitol production from second generation ethanol vinasse and effect of agitation intensity in flask-scale xylitol production
title_fullStr Evaluation of xylose-utilising yeasts for xylitol production from second generation ethanol vinasse and effect of agitation intensity in flask-scale xylitol production
title_full_unstemmed Evaluation of xylose-utilising yeasts for xylitol production from second generation ethanol vinasse and effect of agitation intensity in flask-scale xylitol production
title_sort evaluation of xylose-utilising yeasts for xylitol production from second generation ethanol vinasse and effect of agitation intensity in flask-scale xylitol production
publisher Penerbit Universiti Kebangsaan Malaysia
publishDate 2023
url http://journalarticle.ukm.my/21543/1/S%2014.pdf
http://journalarticle.ukm.my/21543/
http://www.ukm.my/jsm/index.html
_version_ 1768008339926548480
score 13.211869

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