Use este identificador para citar ou linkar para este item: https://locus.ufv.br//handle/123456789/21408
Tipo: Artigo
Título: Optimizing ethanol production by thermotolerant Kluyveromyces marxianus CCT 7735 in a mixture of sugarcane bagasse and ricotta wh
Autor(es): Ferreira, Priscila Gonçalves
Silveira, Fernando Augusto da
Santos, Raquel Cristina Vieira dos
Genier, Hugo Leonardo André
Diniz, Raphael Hermano Santos
Ribeiro Jr., José Ivo
Fietto, Luciano Gomes
Passos, Flávia Maria Lopes
Silveira, Wendel Batista da
Abstract: The simultaneous saccharification and fermentation (SSF) process is a promising strategy to obtain ethanol from cellulosic biomass. In this study, sugarcane bagasse was supplemented with ricotta whey to increase the sugar, vitamin, and trace metal concentrations in the fermentation medium. The optimum conditions for SSF ethanol production from a mixture of sugarcane bagasse and ricotta whey produced by Kluyveromyces marxianus CCT 7735 were evaluated considering five factors: cellulase concentration, cellulosic biomass concentration, pH, temperature, and agitation. The highest ethanol yield was 49.65 g/L with a cellulosic biomass of 80 g/L, pH value of 5.05, agitation at 65 rpm and temperature of 39.2°C. The results demonstrated that a mixture of the cellulosic residue of sugarcane bagasse and ricotta whey is promising for ethanol production because the ethanol yield in the mixture was higher than that in single substrate of sugarcane bagasse.
Palavras-chave: Biofuels
Simultaneous saccharification and fermentation
Kluyveromyces marxianus
Bagasse sugarcane
Ricotta whey
Editor: Food Science and Biotechnology
Tipo de Acesso: KoSFoST and Springer
URI: https://doi.org/10.1007/s10068-015-0182-0
http://www.locus.ufv.br/handle/123456789/21408
Data do documento: 1-Mai-2015
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