Non-Saccharomyces yeasts diversity on grape berries and molecular characterization of Starmerella bacillaris yeasts strains having high invertase activity

dc.contributor.authorGenc, Tulay Turgut
dc.date.accessioned2025-01-27T20:17:12Z
dc.date.available2025-01-27T20:17:12Z
dc.date.issued2022
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThe diversity of yeast species on grape berries changes depending on various factors. Determination of indigenous yeast intensity and diversity on grape berries is important for increasing the sensory characteristics of wine as well as fermentation efficiency. The natural yeast biota of grape berries affects wine flavour and quality by producing some secondary metabolites and hydrolytic enzymes. Despite the application of different nonconventional yeasts in food and fermentation industries, many significant researches are conducted in finding and improving the new strains having industrially important enzyme activities. Invertase enzyme has a vital role in the food industry in which it increases the sweetness of food without crystallizing them. Here, we studied yeast diversity in grape berries from selected localities and also their invertase activity. We collected grape berries from Alphonse, Kmali Yapmcak, Cavus Efes Karasi, Cinsaut, Atasansi and Isabella grape varieties cultivated in Bozcaada island and Gelibolu peninsula. Twenty-one yeast species belonging to seven genera were identified. The yeast strains having high invertase activities were identified with 5.8S-ITS rDNA sequencing technique. The diversity of yeast biota on berries collected from Gelibolu was greater than that of Bozcaada. Metschnilcowia pulcherrima, Cryptococcus laurentii and Rhodotorula glutinis yeast species were dominant yeast species on grape berries. A total of 294 sucrose grown yeast strains showed growth on sucrose, and 19 of them exhibit the highest invertase activity that is not glucose repressible. These 19 yeast strains were identified as Starmerella bacillaris using 5.8S ITS rDNA region and the phylogenetic analysis was inferred with the Maximum Parsimony method.
dc.description.sponsorshipCanakkale Onsekiz Mart University the Scientific Research Coordination Unit [FYL-2010-197]
dc.description.sponsorshipThis work was supported by Canakkale Onsekiz Mart University the Scientific Research Coordination Unit, Project number: FYL-2010-197.
dc.identifier.endpage222
dc.identifier.issn0019-5189
dc.identifier.issn0975-1009
dc.identifier.issue3
dc.identifier.startpage215
dc.identifier.urihttps://hdl.handle.net/20.500.12428/21514
dc.identifier.volume60
dc.identifier.wosWOS:000766176500008
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.language.isoen
dc.publisherNatl Inst Science Communication-Niscair
dc.relation.ispartofIndian Journal of Experimental Biology
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subject5.8S rDNA
dc.subjectVitis vinffera cultivars
dc.subjectWine fermentation
dc.titleNon-Saccharomyces yeasts diversity on grape berries and molecular characterization of Starmerella bacillaris yeasts strains having high invertase activity
dc.typeArticle

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