Efficient very-high-gravity fermentation of sugarcane molasses by industrial yeast strains

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorBarbosa, Heloisy Suzes-
Autor(es): dc.creatorde Abreu Silveira, Erick-
Autor(es): dc.creatorMiranda, Messias-
Autor(es): dc.creatorErnandes, José Roberto-
Data de aceite: dc.date.accessioned2021-03-11T00:30:20Z-
Data de disponibilização: dc.date.available2021-03-11T00:30:20Z-
Data de envio: dc.date.issued2018-12-11-
Data de envio: dc.date.issued2018-12-11-
Data de envio: dc.date.issued2016-06-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1002/jib.317-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/168842-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/168842-
Descrição: dc.descriptionIn this study industrial strains were inoculated, in successive cycles, at high cell density into a sugarcane-based juice containing normal (22%, w/v) and very high sucrose (30%, w/v) levels and supplemented with peptone as a nitrogen source. At 30°C, in shaken cultures, in the normal gravity situation, efficient sucrose utilization occurred in both the supplemented and unsupplemented medium. At higher sugar concentrations, supplementation with peptone induced a more efficient fermentation compared with the unsupplemented medium, with higher biomass accumulation and maintenance of cell viability, and ethanol levels as high as 16% (v/v). Trehalose was also high during the cycles, probably as a necessary response of the yeast to the high stress fermentation conditions. This suggests that it is possible to increase ethanol production by using very-high-fermentation technology and that nutritional supplementation would have a positive effect on the fermentation, allowing for efficient sugar consumption and cell viability maintenance.-
Formato: dc.format329-333-
Idioma: dc.languageen-
Relação: dc.relationJournal of the Institute of Brewing-
Relação: dc.relation0,387-
Direitos: dc.rightsclosedAccess-
Palavras-chave: dc.subjectEthanol production strains-
Palavras-chave: dc.subjectsaccharomyces cerevisiae-
Palavras-chave: dc.subjectSucrose fermentation-
Palavras-chave: dc.subjectVery high gravity fermentation-
Título: dc.titleEfficient very-high-gravity fermentation of sugarcane molasses by industrial yeast strains-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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