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Screening of non‐ Saccharomyces wine yeasts for the presence of extracellular hydrolytic enzymes
Author(s) -
CHAROENCHAI C.,
FLEET G.H.,
HENSCHKE P.A.,
TODD B.E.N.T
Publication year - 1997
Publication title -
australian journal of grape and wine research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.65
H-Index - 77
eISSN - 1755-0238
pISSN - 1322-7130
DOI - 10.1111/j.1755-0238.1997.tb00109.x
Subject(s) - biology , torulaspora delbrueckii , pichia , wine , kluyveromyces , yeast , rhodotorula , saccharomyces , food science , microbiology and biotechnology , biochemistry , pichia pastoris , saccharomyces cerevisiae , recombinant dna , gene
Twenty‐six strains of yeasts, belonging to the genera Candida, Debaryomyces, Hanseniaspora, Hansenula, Kloeckera, Metschnikowia, Pichia, Saccharomyces and Torulaspora previously isolated from wines, were screened for the production of extracellular pectinases, amylases, lipases, proteases and β‐glucosidases. Some strains of Candida species and Hanseniaspora uvarum/Kloeckera apiculata produced extracellular proteolytic or lipolytic activities. Most yeasts exhibited β‐glucosidase activity, but particularly high activity was observed in strains of Pichia anomala/Candida pelliculosa (formerly Hansenula anomala ) and Hanseniaspora uvarum/Kloeckera apiculata . The potential impact of these enzymes on wine quality is discussed.