Comparative study of bio-ethanol production from mahula (Madhuca latifolia L.) flowers by Saccharomyces cerevisiae and Zymomonas mobilis

被引：24

作者：

Behera, Shuvashish ^{[2
]}

Mohanty, Rama Chandra ^{[2
]}

Ray, Ramesh Chandra ^{[1
]}

机构：

[1] Cent Tuber Crops Res Inst, Reg Ctr, Microbiol Lab, Bhubaneswar 751019, Orissa, India

[2] Utkal Univ, Dept Bot, Bhubaneswar 751004, Orissa, India

来源：

APPLIED ENERGY | 2010年 / 87卷 / 07期

关键词：

Bio-ethanol; Fermentation; Madhuca latifolia; Saccharomyces cerevisiae; Zymomonas mobilis; IMMOBILIZED CELLS; FERMENTATION; BIOETHANOL; FUEL;

D O I：

10.1016/j.apenergy.2009.11.018

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Mahula (Madhuca latifolia L) flower is a suitable alternative cheaper carbohydrate source for production of bio-ethanol. Recent production of bio-ethanol by microbial fermentation as an alternative energy source has renewed research interest because of the increase in the fuel price. Saccharomyces cerevisiae (yeast) and Zymomonas mobilis (bacteria) are two most widely used microorganisms for ethanol production. In this study, experiments were carried out to compare the potential of the yeasts. cerevisiae (CTCR1 strain) with the bacterium Z. mobilis (MTCC 92) for ethanol fermentation from mahula flowers. The ethanol production after 96 h fermentation was 149 and 122.9 g kg(-1) flowers using free cells of S. cerevisiae and Z. mobilis, respectively. The S. cerevisiae strain showed 21.2% more final ethanol production in comparison to Z mobilis. Ethanol yield (Yx/s), volumetric product productivity (Qp), sugar to ethanol conversion rate (%) and microbial biomass concentration (X) obtained by S. cerevisiae were found to be 5.2%, 21.1%, 5.27% and 134% higher than Z. mobilis, respectively after 96 h of fermentation. (C) 2009 Published by Elsevier Ltd.

引用

页码：2352 / 2355

页数：4

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