Comparative study of bioethanol production from acid and enzymatically hydrolyzed cotton stalk using co culture of Saccharomyces cerevisiae and Pachysolen tannophilus

2016 ◽  
Vol 9 (4) ◽  
pp. 741-749
Author(s):  
Mirza Zaheer Baig ◽  
Dharmadhikari Smita M
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Comparative Study ◽  
Bioethanol Production ◽  
Cotton Stalk ◽  
Pachysolen Tannophilus

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

Bioethanol production from cotton stalk: A comparative study of various pretreatments

Fuel ◽  
2016 ◽  
Vol 184 ◽  
pp. 527-532 ◽  
Author(s):  
Meixia Wang ◽  
Dayun Zhou ◽  
Yanqin Wang ◽  
Shoujun Wei ◽  
Weihua Yang ◽  
...  
Keyword(s):  
Comparative Study ◽  
Bioethanol Production ◽  
Cotton Stalk

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

scholarly journals A yeast metabolome-based model for an ecotoxicological approach in the management of lignocellulosic ethanol stillage

2019 ◽  
Vol 6 (1) ◽  
pp. 180718 ◽  
Author(s):  
Luca Roscini ◽  
Lorenzo Favaro ◽  
Laura Corte ◽  
Lorenzo Cagnin ◽  
Claudia Colabella ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Saccharomyces Cerevisiae ◽  
Predictive Model ◽  
Lignocellulosic Ethanol ◽  
Bioethanol Production ◽  
Inhibitor Concentration ◽  
Promising Tool ◽  
Different Types ◽  
The Relationship ◽  
Ecotoxicological Bioassay

Lignocellulosic bioethanol production results in huge amounts of stillage, a potentially polluting by-product. Stillage, rich in heavy metals and, mainly, inhibitors, requires specific toxicity studies to be adequately managed. To this purpose, we applied an FTIR ecotoxicological bioassay to evaluate the toxicity of lignocellulosic stillage. Two weak acids and furans, most frequently found in lignocellulosic stillage, have been tested in different mixtures against three Saccharomyces cerevisiae strains. The metabolomic reaction of the test microbes and the mortality induced at various levels of inhibitor concentration showed that the strains are representative of three different types of response. Furthermore, the relationship between concentrations and FTIR synthetic stress indexes has been studied, with the aim of defining a model able to predict the concentrations of inhibitors in stillage, resulting in an optimized predictive model for all the strains. This approach represents a promising tool to support the ecotoxicological management of lignocellulosic stillage.

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