Ang, T.N. and Ngoh, G.C. and Chua, A.S.M. (2009) Pre-treatment of rice husks for fungal fermentation. In: CHEMECA Conference 2009, 27-30 Sept 2009, Perth, Australia.
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Abstract
Agro by-products can be sustainable feedstock for the production of various versatile bio-products. The pre- treatment of which is needed for optimal utilization of recalcitrant lignocellulosic biomass. This study investigated the effect of various acids and alkalis on the pre-treatment of rice husks to make it suitable for use in fermentation. Dry rice husks with the weight of 10 g were pre-treated with 1 % (w/v) of five acids and two alkalis with water loading of 10 ml/g of rice husks. The rice husks that was pre-treated with 1 % (w/v) nitric acid produced the highest total reducing sugars in the hydrolyzate (approximately 4.2 mg/ g of rice husks) after 8 hours at 100 oC followed by pre-treatment with acetic acid (~0.7 mg) and sodium hydroxide (~0.4 mg). Hydrolysis with other acids and alkali produced less than 0.1 mg reducing sugars/ g rice husks. In conclusion, nitric acid was found to be the best hydrolyzing reagent for pre-treatment of rice husks in this study.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | Keywords: Rice husks; lignocellulosic biomass; pre-treatment; hydrolyzing reagent |
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Faculty of Engineering |
| Depositing User: | Mr. Mohd Samsul Ismail |
| Date Deposited: | 16 Jul 2014 00:01 |
| Last Modified: | 16 Jul 2014 00:01 |
| URI: | http://eprints.um.edu.my/id/eprint/10960 |
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