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Methane generation from corncobs treated with xylanolytic consortia

Swaroopa Rani, D. and Thirumale, Sharmila and Nand, Krishna (2003) Methane generation from corncobs treated with xylanolytic consortia. Journal of Material Cycles Waste Management, 5. pp. 125-129.

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Abstract

Consortia were developed for the treatment of corncobs for use as a feedstock in a biogas fermentor. The treatment of corncobs with xylanolytic consortia enhanced the production of methane and biogas. All five consortia developed produced the maximum biogas and methane at a 6% loading rate and 20 days hydraulic retention time (HRT). The maximum biogas yield of 0.59m3/kg volatile solids (VS) with a methane content of 62% was produced with the KK-10 consortium. This was apparently due to a maximum hemicellulose degradation of 88%. most abundant polysaccharide of plant origin available in nature after cellulose is xylan, and several hydrolytic enzymes are needed for the degradation of branched xylan.12 Xylanolytic enzymes have the potential to be used in hydrolyzing xylan-containing wastes for the production of sugar, alcohol, and other products, to release enzymatically free pentose sugars in animal feeds, and to dissolve cellulose-linked hemicellulose for rayon production and the biobleaching of paper pulp. Anaerobic digestion by xylanolytic consortia was selected for the utilization of corncob waste for methane generation. This paper describes the experiments carried out to optimize the various nutritional and operational parameters for the maximum production of methane from xylanolytic consortia utilizing corncobs.

Item Type: Article
Uncontrolled Keywords: Key words Methane Corncobs Consortia Anaerobic Degradation Hemicellulose Enrichment
Subjects: 500 Natural Sciences and Mathematics > 07 Life Sciences > 01 Biology > 03 Environmental Biology
Divisions: Food Microbiology
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 04 Jul 2007 07:01
Last Modified: 28 Dec 2011 09:28
URI: http://ir.cftri.com/id/eprint/1285

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