Bioethanol production from raffinate phase of supercritical CO2 extracted Stevia rebaudiana leaves

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dc.contributor.authorCoban I.
dc.contributor.authorSargin S.
dc.contributor.authorCeliktas M.S.
dc.contributor.authorYesil-Celiktas O.
dc.date.accessioned2019-10-26T21:44:07Z
dc.date.available2019-10-26T21:44:07Z
dc.date.issued2012
dc.departmentEge Üniversitesien_US
dc.description.abstractThe extracts of Stevia rebaudiana are marketed as dietary supplements and utilized as natural sweetening agent in food products. Subsequent to extraction on industrial scale, large quantities of solid wastes are produced. The aim of this study was to investigate the bioconversion efficiency of supercritical CO2 extracted S. rebaudiana residues. Therefore, leaves were extracted with supercritical CO2 and ethanol mixture in order to obtain glycosides, then the raffinate phase was hydrolyzed by both dilute acid and various concentrations of cellulase and ß-glucosidase cocktail. The maximum yield of reducing sugars reached 25.67g/L under the optimal conditions of enzyme pretreatment, whereas 32.00g/L was reached by consecutive enzymatic and acid hydrolyses. Bioethanol yield (20g/L, 2.0% inoculum, 2days) based on the sugar consumed was 45.55% corresponding to a productivity of 0.19kg/m3h which demonstrates challenges to be utilized as a potential feedstock for the production of bioethanol. © 2012 Elsevier Ltd.en_US
dc.identifier.doi10.1016/j.biortech.2012.06.057en_US
dc.identifier.endpage59en_US
dc.identifier.issn0960-8524
dc.identifier.pmid22784953en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage52en_US
dc.identifier.urihttps://doi.org/10.1016/j.biortech.2012.06.057
dc.identifier.urihttps://hdl.handle.net/11454/18438
dc.identifier.volume120en_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.relation.ispartofBioresource Technologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectBioethanolen_US
dc.subjectBiofuelen_US
dc.subjectCellulaseen_US
dc.subjectSteviaen_US
dc.subjectSupercritical fluid extractionen_US
dc.titleBioethanol production from raffinate phase of supercritical CO2 extracted Stevia rebaudiana leavesen_US
dc.typeArticleen_US

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