Recovering oil from corn ethanol fermentation by-products

2008 ◽  
Vol 20 (9) ◽  
pp. 203-207 ◽  
Author(s):  
Tong Wang
Keyword(s):  
Ethanol Fermentation ◽  
Corn Ethanol ◽  
By Products

scholarly journals Enzymatic Hydrolysis and Ethanol Fermentation of By-Products from Potato Processing Plants

2009 ◽  
Vol 15 (6) ◽  
pp. 653-658 ◽  
Author(s):  
Sunao YAMADA ◽  
Noriyuki SHINOMIYA ◽  
Kiyoshi OHBA ◽  
Mitsuo SEKIKAWA ◽  
Yuji ODA
Keyword(s):  
Enzymatic Hydrolysis ◽  
Ethanol Fermentation ◽  
Potato Processing ◽  
Processing Plants ◽  
By Products

Suitability of anaerobic digestion effluent as process water for corn fuel ethanol fermentation

2014 ◽  
Vol 69 (9) ◽  
pp. 1894-1899 ◽  
Author(s):  
Ke Wang ◽  
Jian-Hua Zhang ◽  
Pei Liu ◽  
Zhong-Gui Mao
Keyword(s):  
Anaerobic Digestion ◽  
Ethanol Production ◽  
Ethanol Fermentation ◽  
Fuel Ethanol ◽  
Ammonium Nitrogen ◽  
Process Water ◽  
Ammonium Concentration ◽  
Net Energy ◽  
Corn Ethanol ◽  
Thin Stillage

A corn fuel ethanol plant integrated with anaerobic digestion treatment of thin stillage increases the net energy balance. Furthermore, the anaerobic digestion effluent (ADE) can be reused as a potential substitute for process water in the ethanol fermentation. In this study, the suitability of ADE as process water for corn ethanol fermentation was investigated by analyzing the potential inhibitory components in the ADE. It was found that ammonium influenced the growth and metabolism of Saccharomyces cerevisiae. Maximum ethanol production was obtained when the concentration of ammonium nitrogen was 200 mg/L, and ammonium could replace urea as the nitrogen source for S. cerevisiae under this concentration. In the ethanol fermentation with a higher concentration of ammonium, more glycerol was produced, thereby resulting in the decrease of ethanol production. In addition, components except ammonium in the ADE caused no inhibition to ethanol production. These results suggest that ADE could be reused as process water for corn ethanol fermentation without negative effect when ammonium concentration is well controlled.

Progresses in the production of ethanol from lignocellulosic biomass using Saccharomyces cerevisiae by fermentation engineering

2021 ◽  
Vol 2 (1) ◽  
pp. 117-126
Author(s):  
Richmond Godwin Afful ◽  
Tracy Naa Adoley Addotey ◽  
Samaila Boye Ajeje
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Lignocellulosic Biomass ◽  
Ethanol Fermentation ◽  
Alcoholic Fermentation ◽  
Alcoholic Beverages ◽  
Bread Making ◽  
Cellular Energy ◽  
Increasing Demand ◽  
By Products ◽  
Lignocellulose Biomass

Ethanol fermentation is a biological procedure which converts sugars such as glucose, fructose, and sucrose into cellular energy, producing ethanol and carbon dioxide as by-products. Since yeasts perform this conversion in the absence of oxygen, alcoholic fermentation is generally considered to be an anaerobic process. Ethanol fermentation has many uses, including the production of alcoholic beverages, the production of ethanol fuel, and bread making. The increasing demand for biofuels around the globe has also prompted the necessity to seek other means to meet the demands. In this review, the general ideologies, methodologies, general chemistry and biochemistry and conditions of the production of ethanol by fermentation engineering using Saccharomyces cerevisiae are highlighted. The quest to reduce pressure on staple foods has necessitated the attention now given to the use of lignocellulose biomass, despite the complexity of the process. It concludes by suggesting ways to improve yield and commercialization of the use of lignocellulosic biomass for ethanol fermentation.

Effect of by-Products from Wet-Oxidation Explosion on the Growth and Fermentation of Saccharomyces cerevisiae

2013 ◽  
Vol 724-725 ◽  
pp. 1116-1121
Author(s):  
Mei Zhen Gong ◽  
Ru Ming Zhao ◽  
Zhi Jun Li ◽  
Juan Yao ◽  
Da Chun Gong
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Acetic Acid ◽  
Energy Metabolism ◽  
Formic Acid ◽  
Ethanol Fermentation ◽  
Wet Oxidation ◽  
The Impact ◽  
By Products ◽  
Minimum Impact

Effect of by-products from wet-oxidation explosion, such as formic acid, acetic acid, and furfural on the growth and fermentation, glycolysis and energy metabolism, cytomembrane integrality ofSaccharomyces cerevisiaewere studied. The results showed that the maximum tolerated concentra tion ofS. cerevisiaewas 1.8 g/L formic acid , 6.0 g/L acetic acid,2.5g/ furfural, respectively. The inhibition strengths of the typical inhibitors to ethanol fermentation were in the order of formic acid , acetic acid , furfural. When the concentration of these typical inhibitors is 1×IC80, acetic acid has the minimum impact on glycolysis and energy metabolism . When the concentration of these typical inhibitors was 2×IC80, furfural had minimum impact on glycolysis and energy metabolism. However , formic acid can inhibit strongly the glycolysis and energy metabolism ofSaccharomyces cerevisiaewith any concentration . When compared with ethanol, the impact of these typical inhibitors onS. cerevisiae's cytomembrane integrality was not very significant. When the concentration of these typical inhibitors varied from 1×IC80to 3×IC80, the results of the leak of Mg2+was 11%-20% formic acid, 5%-12% acetic acid, 4.5%-8.4% furfural, respectively. However, the result of ethanol that leaded to the leak of Mg2+was 55%.

scholarly journals Industrial symbiosis: Corn ethanol fermentation, hydrothermal carbonization, and anaerobic digestion

2013 ◽  
Vol 110 (10) ◽  
pp. 2624-2632 ◽  
Author(s):  
Brandon M. Wood ◽  
Lindsey R. Jader ◽  
Frederick J. Schendel ◽  
Nicholas J. Hahn ◽  
Kenneth J. Valentas ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Ethanol Fermentation ◽  
Hydrothermal Carbonization ◽  
Industrial Symbiosis ◽  
Corn Ethanol

Improved Corn Ethanol Fermentation and Oil Distribution by Using Polysaccharide Hydrolyzing Enzymes

2014 ◽  
Vol 3 (4) ◽  
pp. 323-331 ◽  
Author(s):  
Linxing Yao ◽  
Pawarisa Luangthongkam ◽  
Tong Wang ◽  
Buddhi Lamsal ◽  
Tao Fei ◽  
...  
Keyword(s):  
Ethanol Fermentation ◽  
Corn Ethanol ◽  
Oil Distribution ◽  
Hydrolyzing Enzymes

scholarly journals Identification of soil bacteria capable of utilizing a corn ethanol fermentation byproduct

PLoS ONE ◽  
2019 ◽  
Vol 14 (3) ◽  
pp. e0212685 ◽  
Author(s):  
Holly Packard ◽  
Zachary W. Taylor ◽  
Stephanie L. Williams ◽  
Pedro Ivo Guimarães ◽  
Jackson Toth ◽  
...  
Keyword(s):  
Ethanol Fermentation ◽  
Soil Bacteria ◽  
Corn Ethanol
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