Production of biofuels from soybean straw and hull hydrolysates obtained by subcritical water hydrolysis.

Autor: Vedovatto F; Department of Agricultural Engineering, Federal University of Santa Maria, 1000, Roraima av., Santa Maria 97105-900, Brazil; Laboratory of Agroindustrial Processes Engineering (LAPE), Federal University of Santa Maria, 1040, Sete de Setembro av., Cachoeira do Sul 96506-322, Brazil., Bonatto C; Laboratory of Microbiology and Bioprocess, Federal University of Fronteira Sul, 200, ERS 135 - km 72, Erechim 99700-970, Brazil; Department of Chemical and Food Engineering, Federal University of Santa Catarina, Trindade, Florianópolis 88040-900, Brazil., Bazoti SF; Laboratory of Microbiology and Bioprocess, Federal University of Fronteira Sul, 200, ERS 135 - km 72, Erechim 99700-970, Brazil., Venturin B; Western Paraná State University, R. Universitária, Cascavel 85819-110, Brazil., Alves SL Jr; Laboratory of Biochemistry and Genetics, Federal University of Fronteira Sul, Rodovia SC 484 - Km 02, Chapecó, 89815-899, Brazil., Kunz A; Laboratory of Microbiology and Bioprocess, Federal University of Fronteira Sul, 200, ERS 135 - km 72, Erechim 99700-970, Brazil; Western Paraná State University, R. Universitária, Cascavel 85819-110, Brazil; Embrapa Suínos e Aves, BR 153 - Km 110, Concórdia 89710-028, Brazil., Steinmetz RLR; Embrapa Suínos e Aves, BR 153 - Km 110, Concórdia 89710-028, Brazil., Treichel H; Laboratory of Microbiology and Bioprocess, Federal University of Fronteira Sul, 200, ERS 135 - km 72, Erechim 99700-970, Brazil., Mazutti MA; Department of Agricultural Engineering, Federal University of Santa Maria, 1000, Roraima av., Santa Maria 97105-900, Brazil; Department of Chemical Engineering, Federal University of Santa Maria, 1000, Roraima av., Santa Maria 97105-900, Brazil., Zabot GL; Laboratory of Agroindustrial Processes Engineering (LAPE), Federal University of Santa Maria, 1040, Sete de Setembro av., Cachoeira do Sul 96506-322, Brazil., Tres MV; Laboratory of Agroindustrial Processes Engineering (LAPE), Federal University of Santa Maria, 1040, Sete de Setembro av., Cachoeira do Sul 96506-322, Brazil. Electronic address: marcus.tres@ufsm.br.
Jazyk: angličtina
Zdroj: Bioresource technology [Bioresour Technol] 2021 May; Vol. 328, pp. 124837. Date of Electronic Publication: 2021 Feb 13.
DOI: 10.1016/j.biortech.2021.124837
Abstrakt: The objective of this study was to evaluate the ethanol production by Wickerhamomyces sp. using soybean straw and hull hydrolysates obtained by subcritical water hydrolysis and, afterward, the biogas production using the fermented hydrolysates. Ethanol was produced using the straw and hull hydrolysates diluted and supplement with glucose, reaching 5.57 ± 0.01 g/L and 6.11 ± 0.11 g/L, respectively. The fermentation in a bioreactor with changing the pH to 7.0 allowed achieving maximum ethanol production of 4.03 and 3.60 g/L for straw and hull hydrolysates at 24 h, respectively. The biogas productions obtained for the fermented hydrolysates of straw with and without changing the pH were 739 ± 37 and 652 ± 34 NmL/g VSad , respectively. The fermented hydrolysate of hull without changing the pH presented 620 ± 26 NmL/g VSad . The soybean residues produced biofuels, indicating these residues show potential as raw material for renewable energy production.
(Copyright © 2021 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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