Effects of altering fermentation parameters on glycerol and bioethanol production from cane molasses

2002 ◽  
Vol 82 (3) ◽  
pp. 309-314 ◽  
Author(s):  
Cate N Munene ◽  
Willem H Kampen ◽  
Henry Njapau
Keyword(s):  
Bioethanol Production ◽  
Cane Molasses ◽  
Fermentation Parameters

scholarly journals Selenium supplementation during fermentation with sugar beet molasses and Saccharomyces cerevisiae to increase bioethanol production

2019 ◽  
Vol 8 (1) ◽  
pp. 622-628 ◽  
Author(s):  
Sara Faramarzi ◽  
Younes Anzabi ◽  
Hoda Jafarizadeh-Malmiri
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Sugar Beet ◽  
Sodium Selenite ◽  
Fermentation Process ◽  
Selenium Supplementation ◽  
Bioethanol Production ◽  
Beet Molasses ◽  
Sugar Beet Molasses ◽  
Fermentation Parameters ◽  
Microbial Strain

Abstract A bench scale submerged fermentation process was used to bioethanol produce using sugar beet molasses and Saccharomyces cerevisiae, as substrate and microbial strain, respectively. Effects of selenium amount on growth of S. cerevisiae and bioethanol production were evaluated. The obtained results indicated that growth of S. cerevisiae (manifested as turbidity intensity) in the samples containing 0, 5, 10, 15, 20 and 25 μg sodium selenite, during aerobic process, was 0.1707, 0.1678, 0.1679, 0.1664, 0.1627 and 0.160% a.u./h (after 14 h incubation), respectively. Statistical analysis based on compression test indicated that there were insignificant (p > 0.05) differences between growth rate of the yeast in the fermented samples containing S. cerevisiae and 5 to 25 μg selenium salt. Response surface methodology was utilized to evaluate effects of two fermentation parameters namely, amount of selenium (5-25 μg) and substrate brix (10-25°Bx) on the concentration (g/L) of produced bioethanol. Obtained results revealed that maximum bioethanol concentration (55 g/L) was achieved using 15 μg selenium and molasses with 25°Bx. Furthermore, results have also indicated that, without using selenium and using molasses with 25°Bx, bioethanol with concentration of 29 g/L was produced.

Process simulation based life cycle assessment for bioethanol production from cassava, cane molasses, and rice straw

2018 ◽  
Vol 190 ◽  
pp. 24-35 ◽  
Author(s):  
Mahinsasa Rathnayake ◽  
Thanapat Chaireongsirikul ◽  
Apichit Svangariyaskul ◽  
Luckhana Lawtrakul ◽  
Pisanu Toochinda
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Rice Straw ◽  
Process Simulation ◽  
Bioethanol Production ◽  
Cane Molasses ◽  
Simulation Based

Isolation, identification of yeast strains producing bioethanol and improvement of bioethanol production on cheese whey / Biyoetanol üreten maya türlerinin izolasyonu, tanılaması ve peynir altı suyunda biyoetanol üretiminin sağlıklaştırılması

2016 ◽  
Vol 41 (3) ◽  
Author(s):  
Khaled Boudjema ◽  
Fethia Fazouane-naimi ◽  
Amina Hellal
Keyword(s):  
Candida Tropicalis ◽  
Ethanol Tolerance ◽  
Cheese Whey ◽  
Data Bank ◽  
Bioethanol Production ◽  
Physiological And Biochemical Characteristics ◽  
Yeast Strains ◽  
D2 Domain ◽  
Fermentation Parameters ◽  
High Ethanol

AbstractObjective: In this study, bioethanol production on cheese whey (prehydrolysed enzymatically using β galactosidase by isolated yeast strains was investigated.Methods: The yeast strains were isolated from Algerian natural sources (soil and grape) and further were selected on the basis of high ethanol tolerance and high ethanol production on prehydrolysed cheese whey. The selected ones were identified by morphological, physiological and biochemical characteristics. Then, a molecular identification was carried out by amplification and sequencing the D1/D2 domain of 26S rDNA region. In addition, the operating parameters of fermentation such as temperature, pH and substrate concentration (mixture of glucose and galactose) were tested for efficient yeast strain.Results: Among the selected and identified yeast strains, three strain isolates were found to be able to produce bioethanol. These strains are Hanseniaspora opuntiae Z087A0VS, Candida tropicalis Z087B0VS and Candida tropicalis Z087D0VS with an identity of 99% and 100% respectively comparing with the stocked strains in data bank. Furthermore, Hanseniaspora opuntiae presents an ethanol tolerance ethanol up to 11% whereas the two other strains of Candida tolerate up to 12%. The fermentation parameters of most efficient strain were optimized, the temperature 30°C, pH 5 and sugar concentration (glucose and galactose) of 12.5% (w/v) are considered as optimum values for Candida tropicalis Z087B0VS.Conclusion: Candida tropicalis Z087B0VS can be considered as a good candidature for industrial bioethanol production.

Construction Cost of KP Mill Construction for Bioethanol Production

2015 ◽  
Vol 69 (5) ◽  
pp. 518-531
Author(s):  
Tokiya Yaguchi ◽  
Makoto Iwasaki ◽  
Youichiro Isono
Keyword(s):  
Construction Cost ◽  
Bioethanol Production
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