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Title: Enhanced acid hydrolysis for bioethanol production from water hyacinth <span style="font-size:15.0pt;font-family:"Times New Roman","serif";mso-fareast-font-family: Calibri;mso-fareast-theme-font:minor-latin;mso-ansi-language:EN-IN;mso-fareast-language: EN-US;mso-bidi-language:HI">(<i>Eichhornia crassipes) </i>using fermentating yeast <i>Candida intermedia </i>NRRL <i>Y-981</i></span>
Authors: Manivannan, A
Jayarani, P Hepsibha
Narendhirakannan, R T
Keywords: Acid hydrolysis
<i>Candida intermedia</i>
Water hyacinth
Issue Date: Jan-2012
Publisher: NISCAIR-CSIR, India
Abstract: This study presents bioconversion of water hyacinth (<i>Eichhornia crassipes</i>) to bioethanol using two-sequential steps of acid hydrolysis (10% sulfuric acid) and yeast (<i>Candida intermedia</i>) fermentation. Maximum ethanol yield co-efficient was comparable to those obtained through enzymatic saccharification and fermentation of acid hydrolysate using fully equipped fermentor. A maximum ethanol yield (coefficient, 0.21 g g<sup>-1</sup>; productivity, 0.010 g l<sup>-1</sup>h<sup>-1</sup>) was comparable to predicted value (0.23 g g<sup>-1</sup>) obtained by CCD (Central Composite Design). Two colorimetric methods (phloroglucinol and dichromate assays) were used for determination of xylose and ethanol using UV-Vis spectrophotometer. Although maximum ethanol concentration was low, an economically efficient overall process was carried out to convert a lignocellulosic biomass to bioethanol.
Description: 51-56
ISSN: 0975-1084 (Online); 0022-4456 (Print)
Appears in Collections:JSIR Vol.71(01) [January 2012]

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