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JSIR Vol.71 [2012] >
JSIR Vol.71(01) [January 2012] >
| Title: | Enhanced acid hydrolysis for bioethanol production from water hyacinth (Eichhornia crassipes) using fermentating yeast Candida intermedia NRRL Y-981 |
| Authors: | Manivannan, A
Jayarani, P Hepsibha
Narendhirakannan, R T |
| Keywords: | Acid hydrolysis
Bioconversion
Bioethanol
Candida intermedia
Water hyacinth |
| Issue Date: | Jan-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | This study presents bioconversion
of water hyacinth (Eichhornia crassipes) to bioethanol using
two-sequential steps of acid
hydrolysis (10% sulfuric acid) and
yeast (Candida intermedia) 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-1; productivity, 0.010 g l-1h-1) was comparable
to predicted value (0.23 g g-1) 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. |
| Page(s): | 51-56 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1084 (Online); 0022-4456 (Print) |
| Source: | JSIR Vol.71(01) [January 2012]
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