P. Manzanares et al., Screening of non-Saccharomyces wine yeasts for the production of beta-D-xylosidase activity, INT J F MIC, 46(2), 1999, pp. 105-112
Fifty-four yeast strains belonging to the genera Candida, Dekkera, Hansenia
spora, Metschnikowia, Pichia, Rhodotorula, Schizosaccharomyces and Zygosacc
haromyces, mainly isolated from grapes and wines, were screened for the pro
duction of beta-D-xylosidase activity. beta-D-xylosidase activity was only
detected in eight yeast strains belonging to the genera Hanseniaspora (H. o
smophila and H. uvarum) and Pichia (P. anomala). beta-D-xylosidase preparat
ions active against rho-nitrophenyl-beta-D-xyloside were characterised with
respect to their optimal pH and temperature conditions. H. uvarum 11105 an
d 11107 and P, anomala 10320 beta-D-xylosidase preparations were active at
pH and temperature ranges and at concentrations of glucose and ethanol usua
lly found during winemaking processes. (C) 1999 Elsevier Science B.V. All r
ights reserved.