Ethanol fermentation from raw starch of sweet sorghum grains

Ethanol can be readily produced by fermentation of simple sugars that are converted from either starchy crops or cellulosic materials. The hydrolysis and fermentation were used to produce ethanol from raw starch of sweet sorghum grains by utilizing commercially available α-amylase and glucoamylase....

Full description

Bibliographic Details
Main Authors:	Nadir, Najiah, Mel, Maizirwan, Abd Karim, Mohd Ismail
Format:	Conference or Workshop Item
Language:	English
Published:	2010
Subjects:	TP155 Chemical engineering TP248.13 Biotechnology
Online Access:	http://irep.iium.edu.my/5083/ http://irep.iium.edu.my/5083/1/paper_ictnre_2010_%28Najiah_Nadir%29checked_by_MMel_6_Nov_2010.pdf

id	iium-5083
recordtype	eprints
spelling	iium-50832012-02-27T09:13:52Z http://irep.iium.edu.my/5083/ Ethanol fermentation from raw starch of sweet sorghum grains Nadir, Najiah Mel, Maizirwan Abd Karim, Mohd Ismail TP155 Chemical engineering TP248.13 Biotechnology Ethanol can be readily produced by fermentation of simple sugars that are converted from either starchy crops or cellulosic materials. The hydrolysis and fermentation were used to produce ethanol from raw starch of sweet sorghum grains by utilizing commercially available α-amylase and glucoamylase. Ethanol production from hydrolyzed sweet sorghum was analyzed under different fermentation conditions using Saccharomyces cerevisiae in batch fermentation. The concentration of inoculum, urea, NPK (nitrogen, phosphorus, and potassium), temperature, initial pH, and agitation were investigated simultaneously through two-level factorial design. The maximum ethanol concentration (66.70 g/L) were obtained at concentration of inoculum of 0.3% (w/w), urea of 0.60% (w/w), NPK of 0.05% (w/w), temperature of 30°C, initial pH of 6.0, and agitation of 100 rpm. As shown in the analysis of variance (ANOVA) result, the concentration of inoculum, urea, initial pH, and agitation have contributed more significant effect on fermentation of hydrolyzed sweet sorghum. The major factors for fermentation were optimized by the central composite design (CCD) under the response surface method (RSM). After further optimization using CCD, the optimum fermentation conditions for maximum ethanol production of 75.48 g/L were predicted at 0.43% (w/w) of inoculum concentration, 5.62 of initial pH of fermentation media, and 50 rpm of agitation speed. 2010 Conference or Workshop Item NonPeerReviewed application/pdf en http://irep.iium.edu.my/5083/1/paper_ictnre_2010_%28Najiah_Nadir%29checked_by_MMel_6_Nov_2010.pdf Nadir, Najiah and Mel, Maizirwan and Abd Karim, Mohd Ismail (2010) Ethanol fermentation from raw starch of sweet sorghum grains. In: International Conference on Technology for New and Renewable Energy(ICT-NRE), 1-3 December 2010, Jakarta Indonesia.
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TP155 Chemical engineering TP248.13 Biotechnology
spellingShingle	TP155 Chemical engineering TP248.13 Biotechnology Nadir, Najiah Mel, Maizirwan Abd Karim, Mohd Ismail Ethanol fermentation from raw starch of sweet sorghum grains
description	Ethanol can be readily produced by fermentation of simple sugars that are converted from either starchy crops or cellulosic materials. The hydrolysis and fermentation were used to produce ethanol from raw starch of sweet sorghum grains by utilizing commercially available α-amylase and glucoamylase. Ethanol production from hydrolyzed sweet sorghum was analyzed under different fermentation conditions using Saccharomyces cerevisiae in batch fermentation. The concentration of inoculum, urea, NPK (nitrogen, phosphorus, and potassium), temperature, initial pH, and agitation were investigated simultaneously through two-level factorial design. The maximum ethanol concentration (66.70 g/L) were obtained at concentration of inoculum of 0.3% (w/w), urea of 0.60% (w/w), NPK of 0.05% (w/w), temperature of 30°C, initial pH of 6.0, and agitation of 100 rpm. As shown in the analysis of variance (ANOVA) result, the concentration of inoculum, urea, initial pH, and agitation have contributed more significant effect on fermentation of hydrolyzed sweet sorghum. The major factors for fermentation were optimized by the central composite design (CCD) under the response surface method (RSM). After further optimization using CCD, the optimum fermentation conditions for maximum ethanol production of 75.48 g/L were predicted at 0.43% (w/w) of inoculum concentration, 5.62 of initial pH of fermentation media, and 50 rpm of agitation speed.
format	Conference or Workshop Item
author	Nadir, Najiah Mel, Maizirwan Abd Karim, Mohd Ismail
author_facet	Nadir, Najiah Mel, Maizirwan Abd Karim, Mohd Ismail
author_sort	Nadir, Najiah
title	Ethanol fermentation from raw starch of sweet sorghum grains
title_short	Ethanol fermentation from raw starch of sweet sorghum grains
title_full	Ethanol fermentation from raw starch of sweet sorghum grains
title_fullStr	Ethanol fermentation from raw starch of sweet sorghum grains
title_full_unstemmed	Ethanol fermentation from raw starch of sweet sorghum grains
title_sort	ethanol fermentation from raw starch of sweet sorghum grains
publishDate	2010
url	http://irep.iium.edu.my/5083/ http://irep.iium.edu.my/5083/1/paper_ictnre_2010_%28Najiah_Nadir%29checked_by_MMel_6_Nov_2010.pdf
first_indexed	2023-09-18T20:13:34Z
last_indexed	2023-09-18T20:13:34Z
_version_	1777407638222405632

Ethanol fermentation from raw starch of sweet sorghum grains

Similar Items