scholarly journals Second-Generation Bioethanol Production through a Simultaneous Saccharification-Fermentation Process Using Kluyveromyces Marxianus Thermotolerant Yeast

2018 ◽  
Author(s):  
Jorge A. Mejía-Barajas ◽  
Mariana Alvarez-Navarrete ◽  
Alfredo Saavedra-Molina ◽  
Jesús Campos-García ◽  
Uri Valenzuela-Vázquez ◽  
...  
Keyword(s):  
Kluyveromyces Marxianus ◽  
Fermentation Process ◽  
Second Generation ◽  
Thermotolerant Yeast ◽  
Bioethanol Production ◽  
Second Generation Bioethanol ◽  
Simultaneous Saccharification

scholarly journals Valorization of Typha Australis Stems in Bioethanol Production Using Enzymatic Hydrolysis and Biofermentation

2019 ◽  
pp. 90-95 ◽  
Author(s):  
Cosme Sagbo Kouwanou ◽  
Cokou Pascal Agbangnan Dossa ◽  
Euloge Sènan Adjou ◽  
Mossi Issiakou ◽  
Valentin Dieudonné Wotto ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Enzymatic Hydrolysis ◽  
Fermentation Process ◽  
Second Generation ◽  
Great Variability ◽  
Bioethanol Production ◽  
Kinetics Parameters ◽  
Second Generation Bioethanol ◽  
Typha Australis ◽  
Active Dry Yeast

The present study aims to valorize the Typha australis stems, through second-generation bioethanol production using enzymatic hydrolysis and fermentation. The monitoring of fermentation kinetics parameters, such as pH, density, length of fermentation, and the Brix, indicated a great variability of these parameters during the fermentation process of the must with three Saccharomyces cerevisiae strains, such as Angel brand Thermal-tolerant alcohol active dry yeast, Angel brand super alcohol active dry yeast and Angel super alcohol active dry yeast in the presence of urea (CON2H4) used as a growth factor. The distillation of musts after fermentation has yielded ethanol extraction rate (% v / v at 20 ° C) between 4.95and 44.93 after fractional distillation. The best performance in ethanolic bioconversion was recorded with Angel brand super alcohol active dry yeast. This Saccharomyces cerevisiae strains could be used as effective ferments, in perspective of intensive production of second-generation bioethanol with Typha australis stems.

scholarly journals Exploring grape marc as trove for new thermotolerant and inhibitor-tolerant Saccharomyces cerevisiae strains for second-generation bioethanol production

2013 ◽  
Vol 6 (1) ◽  
pp. 168 ◽  
Author(s):  
Lorenzo Favaro ◽  
Marina Basaglia ◽  
Alberto Trento ◽  
Eugéne Van Rensburg ◽  
Maria García-Aparicio ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Second Generation ◽  
Bioethanol Production ◽  
Grape Marc ◽  
Second Generation Bioethanol

scholarly journals Evaluation of polyploid miscanthus lines usage efficiency as a feedstock for bioethanol production

2021 ◽  
Vol 29 ◽  
pp. 13-19
Author(s):  
R. Y. Blume ◽  
O.V. Melnychuk ◽  
S.P. Ozheredov ◽  
D.B. Rakhmetov ◽  
Y.B. Blume
Keyword(s):  
Sweet Sorghum ◽  
Second Generation ◽  
Ethanol Yield ◽  
Bioenergy Crops ◽  
Control Line ◽  
Bioethanol Production ◽  
Second Generation Bioethanol ◽  
Giant Miscanthus ◽  
First And Second Generation ◽  
Bioethanol Yield

Aim. Main aim of this research was the evaluation of theoretical bioethanol yield (per ha) from hexaploid giant miscanthus (Miscanthus х giganteus) and further comparison with conventional triploid form as well as with other bioethanol crops. Methods. Several mathematic functions were determined that describe yearly yield dynamics and equations, which were used in calculations of theoretical bioethanol yield. Results. The theoretical bioethanol yield was evaluated for different hexaploid miscanthus lines. The most productive in terms of ethanol yield were lines 108 and 202, from which potential bioethanol yield was found to be higher than in control line (6451 L/ha) by 10.7 % and 14.2% respectively and can reach 7144 L/ha and 7684 L/ha. Conclusions. It was determined that the most productive lines of polyploid miscanthus (lines 108 and 202) are able to compete with other plant cellulosic feedstocks for second-generation bioethanol production in Ukraine. However, these lines show bioethanol productivity than sweet sorghum, in the case when sweet sorghum is processed for obtainment of both first- and second-generation bioethanol. Keywords: bioenergy crops, biofuels, giant miscanthus, Miscanthus, polyploidy, second-generation bioethanol.

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