Enzymatic hydrolysis of water hyacinth biomass for the production of ethanol: Optimization of driving parameters.
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Date
2013-07
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Abstract
An efficient conversion of lignocellulose into fermentable sugars is a key step in producing bioethanol in a cost effective and eco-friendly manner. Alternative source like water hyacinth biomass (WHB) (Eichhornia crassipes) may be used as a supplement for the routine feedstocks. The enzyme loading for optimum yield of total reducing sugar was investigated and the enzyme-substrate interaction optimised. The maximal reducing sugar and xylose yield was obtained using cellulase and xylanase loading of 46.12 and 289.98 U/g and 2.26% (w/v) substrate loading. The efficiencies of ethanol production from the WHB hydrolysate are very less and the maximal ethanol yield was 3.4969 g/L when Pichia stiptis was used, followed by 3.4496 and 3.1349 g/L for Candida shehatae and Saccharomyces cerevisiae.
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Keywords
Enzymatic hydrolysis, Fermentation, Optimization, Response surface methodology, Water hyacinth
Citation
Ganguly Amit, Das Subhabrata, Bhattacharya Anamica, Dey Apurba, Chatterjee Pradip Kumar. Enzymatic hydrolysis of water hyacinth biomass for the production of ethanol: Optimization of driving parameters. Indian Journal of Experimental Biology. 2013 Jul; 51(7): 556-566.