The effect of pectolytic enzyme treatments on red grape mashes of Vranec on the microbiological quality of wines

Mojsov, Kiro (2011) The effect of pectolytic enzyme treatments on red grape mashes of Vranec on the microbiological quality of wines. In: I-International Conference "Process Technology and Environmental Protection", Zrenjanin, Serbia.

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THE EFFECT OF PECTOLYTIC ENZYME TREATMENTS ON RED GRAPE MASHS OF VRANEC ON THE MICROBIOLOGICAL QUALITY OF WINES-1.pdf

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Abstract

The paper investigates effects of pectolytic enzyme treatments on red grape mashes on the microbiological quality of wines and wine stability with counting of the presence yeast cells (Saccharomyces cerevisiae), after incubation on Sabourald-maltose agar. Also wine samples were investigates of the presence moulds and other bacteria, as and dangerous bacteria Salmonella and Shigella, Staphylococus aureus, Proteus spp., Sulphite-reducing clostridy and Escherichia coli. In all wine samples the results showed that have yeasts Saccharomyces cerevisiae. Saccharomyces is not regard as spoilage organism only if it is found in the wrong place at the wrong time (e.g. in a bottle of semi-sweet wine) causing re-fermentation, meanwhile the better is to have less. Pectinolytic enzyme preparation Trenolin Rot DF showed the best results.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: pectolytic enzymes, red grape Vranec, microbiological quality of wines, microbial spoilage in wine
Subjects: Engineering and Technology > Industrial Biotechnology
Divisions: Faculty of Technology
Depositing User: Kiro Mojsov
Date Deposited: 21 Nov 2012 17:51
Last Modified: 12 Dec 2012 14:56
URI: http://eprints.ugd.edu.mk/id/eprint/1531

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