Goshadrou, A. and Karimi, K. and Taherzadeh, M.J. (2011) Bioethanol production from sweet sorghum bagasse by Mucor hiemalis. Industrial Crops and Products (Article in Press). 7pp.
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Abstract
The present work deals with production of ethanol from sweet sorghum bagasse by a zygomycetes fungus Mucor hiemalis. The bagasse was treated with phosphoric acid and sodium hydroxide, with or without ultrasonication, prior to enzymatic hydrolysis by commercial cellulase and β-glucosidase enzymes. The phosphoric acid pretreatment was performed at 50 °C for 30 min, while the alkali treatment performed with 12% NaOH at 0 °C for 3 h. The pretreatments resulted in improving the subsequent enzymatic hydrolysis to 79–92% of the theoretical yield. The best hydrolysis performance was obtained after pretreatment by NaOH assisted with ultrasonication. The fungus showed promising results in fermentation of the hydrolyzates. In the best case, the hydrolyzate of NaOH-ultrasound pretreated bagasse followed by 24 h fermentation resulted in about 81% of the corresponding theoretical ethanol yield. Furthermore, the highest volumetric ethanol productivity was observed in the hydrolyzates of NaOH pretreated bagasse, especially after ultrasonication in pretreatment stage
| Item Type: | Article |
|---|---|
| Author Affiliation: | Department of Chemical Engineering,Isfahan University of Technology,Isfahan 84156-83111,Iran |
| Subjects: | Plant Production |
| Divisions: | Sorghum |
| Depositing User: | Syamala |
| Date Deposited: | 24 May 2011 06:09 |
| Last Modified: | 24 May 2011 06:12 |
| Official URL: | http://www.sciencedirect.com/science?_ob=ArticleLi... |
| URI: | http://eprints.icrisat.ac.in/id/eprint/2063 |
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