fulltext.study @t Gmail

Selection and preliminary characterization of β-glycosidases producer Patagonian wild yeasts

Paper ID Volume ID Publish Year Pages File Format Full-Text
18092 42711 2007 9 PDF Available
Title
Selection and preliminary characterization of β-glycosidases producer Patagonian wild yeasts
Abstract

Four pre-selected indigenous yeast strains belonging to Candida guilliermondii (V2 and V5), Candida pulcherrima (V6) and Kloeckera apiculata (V9), were used as β-glucosidase (βGL) and β-xylosidase (βXL) sources. The optimization of yeast culture conditions was carried out and the effects of oenological parameters on β-glycosidase activities were evaluated. C. guilliermondii V2 and C. pulcherrima V6 strains were selected. These strains showed intracellular (C. pulcherrima V6) and parietal (C. guilliermondii V2) constitutive βGL and βXL. The enzymatic activities were active at pH, glucose, ethanol and SO2 concentrations usually found in winemaking and they were able to release monoterpenols and alcohols from grape juice glycoside extracts. Additionally, these yeast strains were not able to produce volatile acidity and off flavour. Regional ecological relevance of these species was also discussed. Our results evidence that the selected C. guilliermondii V2 and C. pulcherrima V6 strains have interesting oenological characteristics and allow us to think in their potential application in winemaking.

Keywords
Non-Saccharomyces; Glucosidase; Xylosidase; Wine yeasts; Wine flavour
First Page Preview
Selection and preliminary characterization of β-glycosidases producer Patagonian wild yeasts
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Enzyme and Microbial Technology - Volume 41, Issues 6–7, 1 November 2007, Pages 812–820
Authors
, , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us