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Title: Enzymatic hydrolysis of water hyacinth biomass for the production of ethanol: Optimization of driving parameters
Authors: Ganguly, Amit
Das, Subhabrata
Bhattacharya, Anamica
Dey, Apurba
Chatterjee, Pradip Kumar
Keywords: Enzymatic hydrolysis;Fermentation;Optimization;Response surface methodology;Water hyacinth
Issue Date: Jul-2013
Publisher: NISCAIR-CSIR, India
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.
Page(s): 556-566
ISSN: 0975-1009 (Online); 0019-5189 (Print)
Appears in Collections:IJEB Vol.51(07) [July 2013]

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