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Utilising Grape Pomace for Ethanol Production

dc.contributor.authorKorkie, L. J.en_ZA
dc.contributor.authorJanse, B. J. H.en_ZA
dc.contributor.authorViljoen-Bloom, M.en_ZA
dc.date.accessioned2017-05-31T13:56:47Z
dc.date.available2017-05-31T13:56:47Z
dc.date.issued2002
dc.identifier.citationKorkie, L. J., Janse, B. J. H. & Viljoen-Bloom, M. 2002. Utilising Grape Pomace for Ethanol Production. South African Journal of Enology & Viticulture, 23(1):31-36, doi:10.21548/23-1-2152
dc.identifier.issn2224-7904 (online)
dc.identifier.issn0253-939X (print)
dc.identifier.otherdoi:10.21548/23-1-2152
dc.identifier.urihttp://hdl.handle.net/10019.1/101652
dc.descriptionCITATION: Korkie, L. J., Janse, B. J. H. & Viljoen-Bloom, M. 2002. Utilising Grape Pomace for Ethanol Production. South African Journal of Enology & Viticulture, 23(1):31-36, doi:10.21548/23-1-2152.
dc.descriptionThe original publication is available at http://www.journals.ac.za/index.php/sajev
dc.description.abstractChemical analyses of grape pomace revealed the presence of significant amounts of fermentable sugars that are retained in the pomace after pressing of the grapes. Furthermore, treatment of the pomace with purified hydrolases indicated that the enzymatic biodegradation of the pomace could release additional fermentable sugars. We isolated and evaluated yeast strains associated with grape pomace for their ability to hydrolyse the complex polysaccharides found in grape pomace and to utilise the fermentable sugars for the production of ethanol. Two Pichia rhodanensis isolates were able to partially hydrolyse the pomace polysaccharides, but fermentation of the pomace resulted only in a small increase in the amount of ethanol produced. The study revealed that significant amounts of ethanol could be obtained from the residual sugars associated with grape pomace. However, the complex structure of the pomace polysaccharides apparently renders it unsusceptible to efficient hydrolysis under fermentative conditions.en_ZA
dc.description.urihttp://www.journals.ac.za/index.php/sajev/article/view/2152
dc.format.extent6 pages
dc.language.isoen_ZAen_ZA
dc.publisherSouth African Society for Enology and Viticulture
dc.subjectEthanolen_ZA
dc.subjectGrape pomaceen_ZA
dc.subjectSugar cropsen_ZA
dc.subjectHydrolasesen_ZA
dc.subjectFermentationen_ZA
dc.titleUtilising Grape Pomace for Ethanol Productionen_ZA
dc.typeArticleen_ZA
dc.description.versionPublisher's version
dc.rights.holderSouth African Society for Enology and Viticulture


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