Improving Bioethanol Production By Scheffersomyces Stipitis Using Retentostat Extractive Fermentation At High Xylose Concentration

dc.creatorFarias
dc.creatorDaniele; Pires Atala
dc.creatorDaniel Ibraim; Maugeri Filho
dc.creatorFrancisco Maugeri
dc.date2017
dc.datemaio
dc.date2017-11-13T13:16:16Z
dc.date2017-11-13T13:16:16Z
dc.date.accessioned2018-03-29T05:53:36Z
dc.date.available2018-03-29T05:53:36Z
dc.identifierBiochemical Engineering Journal. Elsevier Science Bv, v. 121, p. 171 - 180, 2017.
dc.identifier1369-703X
dc.identifier1873-295X
dc.identifierWOS:000398752600019
dc.identifier10.1016/j.bej.2017.02.006
dc.identifierhttp://www-sciencedirect-com.ez88.periodicos.capes.gov.br/science/article/pii/S1369703X17300402?via%3Dihub
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/327514
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1364539
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionThe improvement of yields and productivity for second-generation ethanol (2G) production as well as a better understanding of industrial yeasts and processes are required. Nevertheless, a process to produce 2G ethanol efficiently from lignocellulosic C5-sugars has not yet been proposed. Scheffersomyces stipitis presents good fermentation performance, promising to be a potential biocatalyst for converting C5-sugars to ethanol. In order to evaluate yeast performance, experiments were carried out in a retentostatic extractive vacuum system (REV) with total cell retention, controlled substrate feeding (at different xylose concentrations 100-200 g L-1) and simultaneous ethanol production and extraction. During REV at 100 g L-1, it was possible to achieve an efficient ethanol production. The optimum dilution rate was 0.025 h(-1). To avoid stress effects to the yeast metabolism, the ethanol was continuously extracted. Low ethanol concentrations were kept inside the fermenter (25-35 g L-1), resulting in higher yields and productivity when compared with batch, fed-batch and continuous cultures. (C) 2017 Elsevier B.V. All rights reserved.
dc.description121
dc.description171
dc.description180
dc.descriptionFundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languageEnglish
dc.publisherElsevier Science BV
dc.publisherAmsterdam
dc.relationBiochemical Engineering Journal
dc.rightsfechado
dc.sourceWOS
dc.subjectScheffersomyces Stipitis
dc.subjectPentoses
dc.subjectBioethanol
dc.subjectRetentostatic Cultures
dc.subjectExtractive Processes
dc.titleImproving Bioethanol Production By Scheffersomyces Stipitis Using Retentostat Extractive Fermentation At High Xylose Concentration
dc.typeArtículos de revistas


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