Process improvement of pharmaceutical grade ethanol production using sweet sorghum

Nadir, Najiah and Mel, Maizirwan and Abdul Karim, Mohamed Ismail and Mohd Yunus, Rosli (2009) Process improvement of pharmaceutical grade ethanol production using sweet sorghum. International Journal of Science Engineering and Technology, 2 (1). pp. 57-63. ISSN 1985-3785

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Abstract

The cooversion of s1arch to sugar can be achieved by hydrolysis process. The two-step enzymatic hydrolysis of sweet sorghum was performed by commercially available a-amylase and glucoamylase and further ethanol fermenlation of the obtained hydro1yzates by Saccharomyces cerevisiae was studied. In order to allain a higher ethanol yield, optimization study was carried out in the 2 litres stirred tmk bioreac1or, B-Braun bioreactor to investigate the effect ofmain factors of the hydrolysis process, namely, amount of substrale, temperature, time, and amount of enzyme for the maximum production of bioethanol. As shown in the analysis of variance (ANOVA) result, the amount of substrate, liquefilction and saccharification temperlIlUre have contributed more significant effect on hydrolysis process ofsweet sorghum.

Item Type:	Article (Journal)
Additional Information:	4085/793
Uncontrolled Keywords:	sweet sorghum, Saccharomyces cerevisIoe, hydrol)lSis, fermentation, ethanol
Subjects:	T Technology > TP Chemical technology
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User:	Mrs. Wan Salwati Wan Salleh
Date Deposited:	30 Jun 2011 12:16
Last Modified:	01 Jul 2011 15:11
URI:	http://irep.iium.edu.my/id/eprint/793

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