Production of bioethanol by direct bioconversion of oil-palm industrial effluent in a stirred-tank bioreactor

The purpose of this study was to evaluate the feasibility of producing bioethanol from palm-oil mill effluent generated by the oil-palm industries through direct bioconversion process. The bioethanol production was carried out through the treatment of compatible mixed cultures such as Thrichode...

Full description

Bibliographic Details
Main Authors:	Alam, Md. Zahangir, Kabbashi, Nassereldeen Ahmed, Hussin, S. Nahdatul I. S.
Format:	Article
Language:	English
Published:	Springer Science 2009
Subjects:	QD Chemistry TP Chemical technology TP248.13 Biotechnology
Online Access:	http://irep.iium.edu.my/5062/ http://irep.iium.edu.my/5062/ http://irep.iium.edu.my/5062/ http://irep.iium.edu.my/5062/1/Paper-bioethanol-JIMB.pdf

id	iium-5062
recordtype	eprints
spelling	iium-50622012-10-03T04:08:37Z http://irep.iium.edu.my/5062/ Production of bioethanol by direct bioconversion of oil-palm industrial effluent in a stirred-tank bioreactor Alam, Md. Zahangir Kabbashi, Nassereldeen Ahmed Hussin, S. Nahdatul I. S. QD Chemistry TP Chemical technology TP248.13 Biotechnology The purpose of this study was to evaluate the feasibility of producing bioethanol from palm-oil mill effluent generated by the oil-palm industries through direct bioconversion process. The bioethanol production was carried out through the treatment of compatible mixed cultures such as Thrichoderma harzianum, Phanerochaete chrysosporium, Mucor hiemalis, and yeast, Saccharomyces cerevisiae. Simultaneous inoculation of T. harzianum and S. cerevisiae was found to be the mixed culture that yielded the highest ethanol production (4% v/v or 31.6 g/l). Statistical optimization was carried out to determine the operating conditions of the stirred-tank bioreactor for maximum bioethanol production by a two-level fractional factorial design with a single central point. The factors involved were oxygen saturation level (pO2%), temperature, and pH. A polynomial regression model was developed using the experimental data including the linear,quadratic, and interaction effects. Statistical analysis showed that the maximum ethanol production of 4.6% (v/v) or 36.3 g/l was achieved at a temperature of 32�C, pH of 6, and pO2 of 30%. The results of the model validation test under the developed optimum process conditions indicated that the maximum production was increased from 4.6% (v/v) to 6.5% (v/v) or 51.3 g/l with 89.1% chemicaloxygen-demand removal. Springer Science 2009-06 Article PeerReviewed application/pdf en http://irep.iium.edu.my/5062/1/Paper-bioethanol-JIMB.pdf Alam, Md. Zahangir and Kabbashi, Nassereldeen Ahmed and Hussin, S. Nahdatul I. S. (2009) Production of bioethanol by direct bioconversion of oil-palm industrial effluent in a stirred-tank bioreactor. Journal of Industrial Microbiology & Biotechnology, 36 (6). pp. 801-808. ISSN 1367-5435 http://dx.doi.org/10.1007/s10295-009-0554-7 doi:10.1007/s10295-009-0554-7
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	QD Chemistry TP Chemical technology TP248.13 Biotechnology
spellingShingle	QD Chemistry TP Chemical technology TP248.13 Biotechnology Alam, Md. Zahangir Kabbashi, Nassereldeen Ahmed Hussin, S. Nahdatul I. S. Production of bioethanol by direct bioconversion of oil-palm industrial effluent in a stirred-tank bioreactor
description	The purpose of this study was to evaluate the feasibility of producing bioethanol from palm-oil mill effluent generated by the oil-palm industries through direct bioconversion process. The bioethanol production was carried out through the treatment of compatible mixed cultures such as Thrichoderma harzianum, Phanerochaete chrysosporium, Mucor hiemalis, and yeast, Saccharomyces cerevisiae. Simultaneous inoculation of T. harzianum and S. cerevisiae was found to be the mixed culture that yielded the highest ethanol production (4% v/v or 31.6 g/l). Statistical optimization was carried out to determine the operating conditions of the stirred-tank bioreactor for maximum bioethanol production by a two-level fractional factorial design with a single central point. The factors involved were oxygen saturation level (pO2%), temperature, and pH. A polynomial regression model was developed using the experimental data including the linear,quadratic, and interaction effects. Statistical analysis showed that the maximum ethanol production of 4.6% (v/v) or 36.3 g/l was achieved at a temperature of 32�C, pH of 6, and pO2 of 30%. The results of the model validation test under the developed optimum process conditions indicated that the maximum production was increased from 4.6% (v/v) to 6.5% (v/v) or 51.3 g/l with 89.1% chemicaloxygen-demand removal.
format	Article
author	Alam, Md. Zahangir Kabbashi, Nassereldeen Ahmed Hussin, S. Nahdatul I. S.
author_facet	Alam, Md. Zahangir Kabbashi, Nassereldeen Ahmed Hussin, S. Nahdatul I. S.
author_sort	Alam, Md. Zahangir
title	Production of bioethanol by direct bioconversion of oil-palm industrial effluent in a stirred-tank bioreactor
title_short	Production of bioethanol by direct bioconversion of oil-palm industrial effluent in a stirred-tank bioreactor
title_full	Production of bioethanol by direct bioconversion of oil-palm industrial effluent in a stirred-tank bioreactor
title_fullStr	Production of bioethanol by direct bioconversion of oil-palm industrial effluent in a stirred-tank bioreactor
title_full_unstemmed	Production of bioethanol by direct bioconversion of oil-palm industrial effluent in a stirred-tank bioreactor
title_sort	production of bioethanol by direct bioconversion of oil-palm industrial effluent in a stirred-tank bioreactor
publisher	Springer Science
publishDate	2009
url	http://irep.iium.edu.my/5062/ http://irep.iium.edu.my/5062/ http://irep.iium.edu.my/5062/ http://irep.iium.edu.my/5062/1/Paper-bioethanol-JIMB.pdf
first_indexed	2023-09-18T20:13:33Z
last_indexed	2023-09-18T20:13:33Z
_version_	1777407637024931840

Production of bioethanol by direct bioconversion of oil-palm industrial effluent in a stirred-tank bioreactor

Similar Items