scholarly journals Immobilization of Spathaspora passalidarum NRRL Y-27907 in Calcium Alginate Aiming the Production of Second-Generation Ethanol

2021 ◽  
Author(s):  
Juliane Machado da Silveira ◽  
Lauren Bergmann Soares ◽  
Karina Cesca ◽  
Anderson Felipe Viana da Silva ◽  
Liana Longo ◽  
...  
Keyword(s):  
Calcium Alginate ◽  
Second Generation ◽  
Spathaspora Passalidarum ◽  
Second Generation Ethanol

Valorization of Sugar-Ethanol Industry Waste Vinasse for Increased Second-Generation Ethanol Production Using Spathaspora passalidarum Yeast Strains

Sugar Tech ◽  
2019 ◽  
Vol 21 (2) ◽  
pp. 312-319
Author(s):  
Fernanda Leitão Vaz ◽  
Raquel de Fátima Rodrigues de Souza ◽  
Emmanuel Damilano Dutra ◽  
Bárbara Ribeiro Alves Alencar ◽  
Esteban Espinosa Vidal
Keyword(s):  
Ethanol Production ◽  
Second Generation ◽  
Industry Waste ◽  
Yeast Strains ◽  
Spathaspora Passalidarum ◽  
Second Generation Ethanol

Impact of the Melle-Boinot process on the enhancement of second-generation ethanol production by Spathaspora passalidarum

2020 ◽  
Vol 160 ◽  
pp. 1206-1216 ◽  
Author(s):  
Thiago Neitzel ◽  
Cleilton Santos Lima ◽  
Luiz Eduardo Biazi ◽  
Karen Cristina Collograi ◽  
Aline Carvalho da Costa ◽  
...  
Keyword(s):  
Ethanol Production ◽  
Second Generation ◽  
Spathaspora Passalidarum ◽  
Second Generation Ethanol

Dynamic Modeling Application To Evaluate the Performance of Spathaspora passalidarum in Second-Generation Ethanol Production: Parametric Dynamics and the Likelihood Confidence Region

2021 ◽  
Vol 60 (38) ◽  
pp. 13822-13833
Author(s):  
Fernan Martinez-Jimenez ◽  
Marcelo Perencin de Arruda Ribeiro ◽  
Cintia Regina Sargo ◽  
Jaciane Lutz Ienczak ◽  
Edvaldo Rodrigo Morais ◽  
...  
Keyword(s):  
Ethanol Production ◽  
Dynamic Modeling ◽  
Second Generation ◽  
Confidence Region ◽  
Spathaspora Passalidarum ◽  
Second Generation Ethanol

Comparison of Spathaspora passalidarum and recombinant Saccharomyces cerevisiae for integration of first- and second-generation ethanol production

2021 ◽  
Vol 21 (6) ◽  
Author(s):  
Isabela de Oliveira Pereira ◽  
Ângela Alves dos Santos ◽  
Davi L Gonçalves ◽  
Marcela Purificação ◽  
Nick Candiotto Guimarães ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Second Generation ◽  
Ethanol Yield ◽  
Fractionation Process ◽  
Sucrose Hydrolysis ◽  
Recombinant Saccharomyces Cerevisiae ◽  
Hemicellulosic Hydrolysate ◽  
Spathaspora Passalidarum ◽  
Microaerobic Conditions ◽  
Second Generation Ethanol

ABSTRACT First-generation ethanol (E1G) is based on the fermentation of sugars released from saccharine or starch sources, while second-generation ethanol (E2G) is focused on the fermentation of sugars released from lignocellulosic feedstocks. During the fractionation process to release sugars from hemicelluloses (mainly xylose), some inhibitor compounds are released hindering fermentation. Thus, the biggest challenge of using hemicellulosic hydrolysate is selecting strains and processes able to efficiently ferment xylose and tolerate inhibitors. With the aim of diluting inhibitors, sugarcane molasses (80% of sucrose content) can be mixed to hemicellulosic hydrolysate in an integrated E1G–E2G process. Cofermentations of xylose and sucrose were evaluated for the native xylose consumer Spathaspora passalidarum and a recombinant Saccharomyces cerevisiae strain. The industrial S. cerevisiae strain CAT-1 was modified to overexpress the XYL1, XYL2 and XKS1 genes and a mutant ([4–59Δ]HXT1) version of the low-affinity HXT1 permease, generating strain MP-C5H1. Although S. passalidarum showed better results for xylose fermentation, this yeast showed intracellular sucrose hydrolysis and low sucrose consumption in microaerobic conditions. Recombinant S. cerevisiae showed the best performance for cofermentation, and a batch strategy at high cell density in bioreactor achieved unprecedented results of ethanol yield, titer and volumetric productivity in E1G–E2G production process.

Evaluating the Potential of Culms from Sugarcane and Energy Cane Varieties Grown in Argentina for Second-Generation Ethanol Production

2021 ◽  
Author(s):  
Aissata Ousmane Kane ◽  
Vanessa O. Arnoldi Pellergini ◽  
Melissa C. Espirito Santo ◽  
Balla Diop Ngom ◽  
José M. García ◽  
...  
Keyword(s):  
Ethanol Production ◽  
Second Generation ◽  
Energy Cane ◽  
Second Generation Ethanol

scholarly journals Exergy efficiency of thermochemical syngas-to-ethanol production plants

2021 ◽  
Vol 3 (5) ◽  
Author(s):  
Marcos Paulo Gabriel da Costa e Silva ◽  
Júlio Cesar de Carvalho Miranda
Keyword(s):  
Ethanol Production ◽  
Process Improvement ◽  
Second Generation ◽  
Exergy Efficiency ◽  
Exergy Destruction ◽  
Exothermic Reactions ◽  
Production Processes ◽  
Different Temperatures ◽  
Exergy Analyses ◽  
Second Generation Ethanol

Abstract This work presents exergy analyses applied in four different conceptual second-generation ethanol production processes through a thermochemical route using catalysts based on Molybdenum (P-1), Copper (P-2), and Rhodium (P-3 and P-4), aiming to assess their exergetic efficiencies. The results show that the conceptual processes have satisfactory exergy efficiencies in both cases, when compared among themselves and when compared with other processes reported in literature. The processes’ efficiency for P-1, P-2, P-3 and P-4 were, respectively, 52.4%, 41.4%, 43.7% and 48.9%. The reactors were the sections in which exergy destruction was more significant, due to the exothermic reactions and mixing points (where streams with different temperatures were mixed). Such results show the potential of thermochemical ethanol production, besides opening the possibilities of process improvement. Graphic abstract

Assessing the sugarcane bagasse and straw as a biofuel to propel light vehicles

2021 ◽  
Author(s):  
Rubens Eliseu Nicula de Castro ◽  
Rita MB Alves ◽  
Cláudio Augusto Oller Nascimento
Keyword(s):  
Sugarcane Bagasse ◽  
Second Generation ◽  
Energy Carriers ◽  
Sugarcane Production ◽  
Second Generation Ethanol

Sugarcane bagasse and straw are the residues from sugarcane production. They can be used to produce electricity, second-generation ethanol, and biogas. These three kinds of fuel are energy carriers that...

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