scholarly journals Comparative study of bioethanol production from sugarcane molasses by using Zymomonas mobilis and Saccharomyces cerevisiae

2015 ◽  
Vol 14 (31) ◽  
pp. 2455-2462 ◽  
Author(s):  
H Khoja Asif ◽  
Ali Ehsan ◽  
Zafar Kashaf ◽  
A Ansari Abeera ◽  
Nawar Azra ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Comparative Study ◽  
Zymomonas Mobilis ◽  
Sugarcane Molasses ◽  
Bioethanol Production

scholarly journals Bioethanol production by Saccharomyces cerevisiae, Pichia stipitis and Zymomonas mobilis from delignified coconut fibre mature and lignin extraction according to biorefinery concept

2016 ◽  
Vol 94 ◽  
pp. 353-365 ◽  
Author(s):  
Fabiano Avelino Gonçalves ◽  
Héctor A. Ruiz ◽  
Everaldo Silvino dos Santos ◽  
José A. Teixeira ◽  
Gorete Ribeiro de Macedo
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Zymomonas Mobilis ◽  
Pichia Stipitis ◽  
Bioethanol Production ◽  
Lignin Extraction ◽  
Coconut Fibre

scholarly journals Bioethanol Production from Cassava Peels Inoculated with Saccharomyces cerevisiae and Zymomonas mobilis

2021 ◽  
pp. 58-67
Author(s):  
Kehinde Tope Adegbehingbe ◽  
Foluso Faparusi ◽  
Bartholomew Saanu Adeleke
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Chemical Composition ◽  
Zymomonas Mobilis ◽  
Ph Value ◽  
Control Sample ◽  
Reducing Sugar ◽  
Bioethanol Production ◽  
Transportation Fuel ◽  
Cassava Peels ◽  
Cassava Peel

Aim: This study was designed to determine the bioethanol production from fermented cassava peel using Saccharomyces cerevisiae and Zymomonas mobilis. Methodology: Cassava peels were collected from cassava processing sites, washed, surface sterilized, dried, milled into flour, pretreated, and fermented. Saccharomyces cerevisiae and Z. mobilis suspensions were aseptically inoculated into the fermenting medium and allowed to stand for seven days. The pH, total reducing sugar, chemical composition, and bioethanol composition of the fermenting substrates were determined. Results: A pH decrease from 5.2 to 4.1 was recorded in the sample fermented with S. cerevisiae while the least pH value of 3.8 was obtained from the sample fermented with Z. mobilis, respectively. The total reducing sugar (glucose) of fermented samples decreased from 3.4% to 1.5% (Z. mobilis) and 3.4% to 1.88% (S. cerevisiae) compared with the control sample. The chemical composition showed high protein and fat contents in the fermented samples. High percentage yield of 30% with ethanol volume of 45 mL was recovered from cassava peel inoculated with S. cerevisiae while flash point, i.e. the lowest temperature at which fuel produces enough vapor to cause ignition leading to flame generation of 24oC, was recorded for both fermented samples inoculated with S. cerevisiae and Z. mobilis. Conclusion: The ability of the bacterium and the yeast isolates exhibiting high potential for bioethanol production could be promising in various industrial processes as an alternative to fossil transportation fuel.

scholarly journals Improved Glucose Recovery from Sicyos angulatus by NaOH Pretreatment and Application to Bioethanol Production

Processes ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 245
Author(s):  
Hyung-Eun An ◽  
Kang Hyun Lee ◽  
Ye Won Jang ◽  
Chang-Bae Kim ◽  
Hah Young Yoo
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Alternative Energy ◽  
Invasive Plant ◽  
Food Resource ◽  
Raw Material ◽  
Control Group ◽  
Bioethanol Production ◽  
Naoh Pretreatment ◽  
Glucose Recovery ◽  
Harmful Species

As greenhouse gases and environmental pollution become serious, the demand for alternative energy such as bioethanol has rapidly increased, and a large supply of biomass is required for bioenergy production. Lignocellulosic biomass is the most abundant on the planet and a large part of it, the second-generation biomass, has the advantage of not being a food resource. In this study, Sicyos angulatus, known as an invasive plant (harmful) species, was used as a raw material for bioethanol production. In order to improve enzymatic hydrolysis, S. angulatus was pretreated with different NaOH concentration at 121 °C for 10 min. The optimal NaOH concentration for the pretreatment was determined to be 2% (w/w), and the glucan content (GC) and enzymatic digestibility (ED) were 46.7% and 55.3%, respectively. Through NaOH pretreatment, the GC and ED of S. angulatus were improved by 2.4-fold and 2.5-fold, respectively, compared to the control (untreated S. angulatus). The hydrolysates from S. angulatus were applied to a medium for bioethanol fermentation of Saccharomyces cerevisiae K35. Finally, the maximum ethanol production was found to be 41.3 g based on 1000 g S. angulatus, which was 2.4-fold improved than the control group.

scholarly journals Efficient utilization of date palm waste for the bioethanol production through Saccharomyces cerevisiae strain

2021 ◽  
Vol 9 (4) ◽  
pp. 2066-2074
Author(s):  
Arslan Ahmad ◽  
Summar A. Naqvi ◽  
Muhammad J. Jaskani ◽  
Muhammad Waseem ◽  
Ehsan Ali ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Date Palm ◽  
Bioethanol Production ◽  
Efficient Utilization ◽  
Date Palm Waste ◽  
Palm Waste
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