Ethanol production from fermentation of sago starch

Ethanol production from fermentation of sago starch

Hydrolyzed sago starch (HSS) which acts as a substrate for the production of the ethanol was studied in a fermentation process by Zymomonas mobilis AT 10988. The study was carried out in three stages, namely, enzymatically hydrolysis, batch and continuous fermentation studies. From the hydrolysis...

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Main Author: Dayang Salwani, Awang Adeni.
Format: Thesis
Language:English
Published: 2002
Subjects:
QK Botany
SB Plant culture
Online Access:http://ir.unimas.my/id/eprint/16145/3/Dayang%20Salwani.pdf
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id my-unimas-ir.16145
record_format uketd_dc
spelling my-unimas-ir.161452024-02-05T01:35:08Z Ethanol production from fermentation of sago starch 2002 Dayang Salwani, Awang Adeni. QK Botany SB Plant culture Hydrolyzed sago starch (HSS) which acts as a substrate for the production of the ethanol was studied in a fermentation process by Zymomonas mobilis AT 10988. The study was carried out in three stages, namely, enzymatically hydrolysis, batch and continuous fermentation studies. From the hydrolysis studies, a 20% (w/v) sago starch concentration resulted in the highest conversion (98.64%) to reducing sugar compared to other starch concentrations. Optimum enzyme concentration for hydrolysis were 0.5 ul/g and 0.6 ul/g for Termamyl 120L and Dextrozyme. Liquefacstion and saccharification process was conduced at pH 6.5 and pH4.5 respectively, with the incubation period for liquefaction was 2 hours. Studies using batch culture system employing various concentrations of commercial glucose showed that glucose with 10% concentration was able to produce 35.70% g/L ethanol with fermentation efficiency of 86.95%, better than other glucose concentrations (15%, 20% and 25%). Universiti Malaysia Sarawak (UNIMAS) 2002 Thesis http://ir.unimas.my/id/eprint/16145/ http://ir.unimas.my/id/eprint/16145/3/Dayang%20Salwani.pdf text en validuser masters Universiti Malaysia Sarawak, (UNIMAS) Faculty of Resource Science and Technology
institution Universiti Malaysia Sarawak
collection UNIMAS Institutional Repository
language English
topic QK Botany
SB Plant culture
spellingShingle QK Botany
SB Plant culture
Dayang Salwani, Awang Adeni.
Ethanol production from fermentation of sago starch
description Hydrolyzed sago starch (HSS) which acts as a substrate for the production of the ethanol was studied in a fermentation process by Zymomonas mobilis AT 10988. The study was carried out in three stages, namely, enzymatically hydrolysis, batch and continuous fermentation studies. From the hydrolysis studies, a 20% (w/v) sago starch concentration resulted in the highest conversion (98.64%) to reducing sugar compared to other starch concentrations. Optimum enzyme concentration for hydrolysis were 0.5 ul/g and 0.6 ul/g for Termamyl 120L and Dextrozyme. Liquefacstion and saccharification process was conduced at pH 6.5 and pH4.5 respectively, with the incubation period for liquefaction was 2 hours. Studies using batch culture system employing various concentrations of commercial glucose showed that glucose with 10% concentration was able to produce 35.70% g/L ethanol with fermentation efficiency of 86.95%, better than other glucose concentrations (15%, 20% and 25%).
format Thesis
qualification_level Master's degree
author Dayang Salwani, Awang Adeni.
author_facet Dayang Salwani, Awang Adeni.
author_sort Dayang Salwani, Awang Adeni.
title Ethanol production from fermentation of sago starch
title_short Ethanol production from fermentation of sago starch
title_full Ethanol production from fermentation of sago starch
title_fullStr Ethanol production from fermentation of sago starch
title_full_unstemmed Ethanol production from fermentation of sago starch
title_sort ethanol production from fermentation of sago starch
granting_institution Universiti Malaysia Sarawak, (UNIMAS)
granting_department Faculty of Resource Science and Technology
publishDate 2002
url http://ir.unimas.my/id/eprint/16145/3/Dayang%20Salwani.pdf
_version_ 1794022996050968576

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