High ethanol production under optimal aeration conditions and yeast composition in a very high gravity fermentation from sweet sorghum juice by Saccharomyces cerevisiae

2016 ◽  
Vol 92 ◽  
pp. 263-270 ◽  
Author(s):  
Orawan Deesuth ◽  
Pattana Laopaiboon ◽  
Lakkana Laopaiboon
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Sweet Sorghum ◽  
High Gravity ◽  
High Gravity Fermentation ◽  
Very High Gravity ◽  
Sweet Sorghum Juice ◽  
Very High Gravity Fermentation ◽  
Aeration Conditions ◽  
High Ethanol ◽  
Very High

scholarly journals Improvement of Bioethanol Production from Sweet Sorghum Juice under Very High Gravity Fermentation: Effect of Nitrogen, Osmoprotectant, and Aeration

Energies ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3620 ◽  
Author(s):  
Niphaphat Phukoetphim ◽  
Pachaya Chan-u-tit ◽  
Pattana Laopaiboon ◽  
Lakkana Laopaiboon
Keyword(s):  
Ethanol Production ◽  
Yeast Extract ◽  
Sweet Sorghum ◽  
Control Experiment ◽  
Nutrient Concentrations ◽  
High Gravity ◽  
Very High Gravity ◽  
Sweet Sorghum Juice ◽  
Very High Gravity Fermentation ◽  
Very High

To improve ethanol production fermentation efficiency from sweet sorghum juice under a very high gravity (VHG, 280 g/L of total sugar) condition by Saccharomyces cerevisiae NP01, dried spent yeast (DSY), yeast extract, and glycine concentrations were optimized using an L9 (34) orthogonal array design. The results showed that the order of influence on the ethanol concentration (PE) was yeast extract > glycine > DSY. The optimal nutrient concentrations for ethanol production were determined as follows: yeast extract, 3; DSY, 4; and glycine, 5 g/L. When a verification experiment under the projected optimal conditions was done, the P, ethanol yield (Yp/s), and ethanol productivity (Qp) values were 120.1 g/L, 0.47, and 2.50 g/L·h, respectively. These values were similar to those of the positive control experiment with yeast extract supplementation at 9 g/L. The yeast viability under the optimal condition was higher than that of the control experiment. To improve sugar utilization and ethanol production, aeration at 2.5 vvm for 4 h was applied under the optimal nutrient supplementation. The P, Yp/s, and Qp values were significantly increased to 134.3 g/L, 0.50, and 2.80 g/L·h, respectively.

scholarly journals A Novel Strategy to Construct Yeast Saccharomyces cerevisiae Strains for Very High Gravity Fermentation

PLoS ONE ◽  
2012 ◽  
Vol 7 (2) ◽  
pp. e31235 ◽  
Author(s):  
Xianglin Tao ◽  
Daoqiong Zheng ◽  
Tianzhe Liu ◽  
Pinmei Wang ◽  
Wenpeng Zhao ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
High Gravity ◽  
Yeast Saccharomyces Cerevisiae ◽  
High Gravity Fermentation ◽  
Very High Gravity ◽  
Very High Gravity Fermentation ◽  
Novel Strategy ◽  
Very High

Production of ethanol through very high gravity fermentation by Saccharomyces cerevisiae wild strains

2014 ◽  
Vol 185 ◽  
pp. S123
Author(s):  
Carlos Rafael Castillo Saldarriaga ◽  
Mario Enrique Velasquez Lozano ◽  
Yina Cifuentes Triana
Keyword(s):  
Saccharomyces Cerevisiae ◽  
High Gravity ◽  
High Gravity Fermentation ◽  
Very High Gravity ◽  
Very High Gravity Fermentation ◽  
Wild Strains ◽  
Very High
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