Killer yeasts - cause of stuck fermentations in a wine cellar

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dc.contributor.authorVan Vuuren, H. J. J.en_ZA
dc.contributor.authorWingfield, Brenda D.en_ZA
dc.date.accessioned2017-06-22T09:57:48Z
dc.date.available2017-06-22T09:57:48Z
dc.date.issued1986
dc.descriptionCITATION: Van Vuuren, H. J. J. & Wingfield, Brenda D. 1986. Killer yeasts - cause of stuck fermentations in a wine cellar. South African Journal of Enology & Viticulture, 7(2):113-118, doi:10.21548/7-2-2336.en_ZA
dc.descriptionThe original publication is available at http://www.journals.ac.za/index.php/sajeven_ZA
dc.description.abstractSluggish fermentations in five fermenters in a wine cellar were investigated. Methylene blue-stains of yeast suspensions revealed that approximately 90% of the total yeast population in each of the fermenters were dead. The viable cells in each fermenter were killer yeasts. Polyacrylamide gel electrophoresis of total soluble cell proteins showed that the same killer yeast occurred in each of the five fermenters. The effect of killer yeast on viability and fermentation activity of the wine yeast was studied in an enriched grape juice medium at 20°C and 30°C. Death rate of the wine yeast was considerably higher in the presence of the killer yeast and fermentations were retarded at both temperatures. The killer yeast induced flocculation of the non-flocculent wine yeast.en_ZA
dc.description.urihttp://www.journals.ac.za/index.php/sajev/article/view/2336
dc.description.versionPublisher's versionen_ZA
dc.format.extent6 pages : illustrationsen_ZA
dc.identifier.citationVan Vuuren, H. J. J. & Wingfield, Brenda D. 1986. Killer yeasts - cause of stuck fermentations in a wine cellar. South African Journal of Enology & Viticulture, 7(2):113-118, doi:10.21548/7-2-2336en_ZA
dc.identifier.issn2224-7904 (online)
dc.identifier.issn0253-939X (print)
dc.identifier.otherdoi:10.21548/7-2-2336
dc.identifier.urihttp://hdl.handle.net/10019.1/101821
dc.language.isoen_ZAen_ZA
dc.publisherSouth African Society for Enology and Viticultureen_ZA
dc.rights.holderSouth African Society for Enology and Viticultureen_ZA
dc.subjectKiller yeastsen_ZA
dc.subjectWine and wine makingen_ZA
dc.subjectStuck wine fermentationsen_ZA
dc.titleKiller yeasts - cause of stuck fermentations in a wine cellaren_ZA
dc.typeArticleen_ZA
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