Article: Influences of pH, temperature, initial total soluble sugar concentration and particle stuffing rate on ethanol production from sugarcane juice by immobilised yeast Journal: International Journal of Global Energy Issues (IJGEI) 2009 Vol.31 No.3/4 pp.220 - 229 Abstract: Batch ethanol fermentations using sugarcane juice with immobilised yeast were carried out in shaking flasks in order to investigate the influences of different pH values, temperatures, initial total soluble sugar concentrations and particle stuffing rates on ethanol productivity. The results showed that a suitable pH, temperature, initial total soluble sugar concentration and particle stuffing rate were 4.0, 32°C, 199.7 mg ml−1, 20%, respectively. When these four conditions at the corresponding suitable value were applied as an integral group for fermentation, a higher ethanol productivity of 1.036 ml ml−1 hour−1could be achieved. In addition, these four factors all have significant influence (p < 0.05) on the ethanol productivity. Inderscience Publishers - linking academia, business and industry through research

Title: Influences of pH, temperature, initial total soluble sugar concentration and particle stuffing rate on ethanol production from sugarcane juice by immobilised yeast

Authors: Fei Shen, Xiaoyan Mei, Ronghou Liu, Weixing Cao

Addresses: Biomass Energy Engineering Research Centre, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, PR China. ' Biomass Energy Engineering Research Centre, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, PR China. ' Biomass Energy Engineering Research Centre, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, PR China. ' Biomass Energy Engineering Research Centre, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, PR China

Abstract: Batch ethanol fermentations using sugarcane juice with immobilised yeast were carried out in shaking flasks in order to investigate the influences of different pH values, temperatures, initial total soluble sugar concentrations and particle stuffing rates on ethanol productivity. The results showed that a suitable pH, temperature, initial total soluble sugar concentration and particle stuffing rate were 4.0, 32°C, 199.7 mg ml⁻¹, 20%, respectively. When these four conditions at the corresponding suitable value were applied as an integral group for fermentation, a higher ethanol productivity of 1.036 ml ml⁻¹ hour⁻¹could be achieved. In addition, these four factors all have significant influence (p < 0.05) on the ethanol productivity.

Keywords: bioethanol; fermentation; immobilised yeast; sugarcane juice; pH; temperature; total soluble sugar concentration; particle stuffing rate; ethanol production.

DOI: 10.1504/IJGEI.2009.027637

International Journal of Global Energy Issues, 2009 Vol.31 No.3/4, pp.220 - 229

Published online: 05 Aug 2009 *

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Title: Influences of pH, temperature, initial total soluble sugar concentration and particle stuffing rate on ethanol production from sugarcane juice by immobilised yeast

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