TAXONOMIC IDENTIFICATION OF TWO YEASTS STRAINS ISOLATED FROM CONCENTRATED MUST AND SUPRASULFITED MUST

Published in Scientific Papers. Series B, Horticulture, Volume LVIII
Written by Georgeta BELENIUC, Constantin Băducă CÂMPEANU, Florin AONOFRIESEI, Liviu GRIGORICA, Jose PARDO

In 2012 year two yeasts strains were isolated from yeasts populations that were active in concentrated grape must and suprasulfited must. The aim of this work was the characterization and identification of two yeasts strains and established their affiliation at osmofile or sulfites species, or proof that this property was acquired as a result of their adaptation to unfavorable environmental conditions. Research shows that these two yeasts strains marked with an 1- MC and 2-MS belong to Saccharomyces oviformis and Saccharomyces cerevisiae var. ellipsoideus species. It was found that their growth and reproduction in unfavorable environmental conditions are a result of adaptation to these conditions. This adaptation is a warning to the fact that even if the equipment of work is technologically advanced (on the construction and operation of ) can not prevent biological degradation of concentrated musts and of suprasulfited musts with these yeasts strains, if the hygiene measures are not taken for the technological lines, vessels and spaces for wines storage.

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Beleniuc G., Băducă Câmpeanu C., Aonofriesei F., Grigorica L., Pardo J. 2014, TAXONOMIC IDENTIFICATION OF TWO YEASTS STRAINS ISOLATED FROM CONCENTRATED MUST AND SUPRASULFITED MUST. Scientific Papers. Series B, Horticulture, Volume LVIII, Print ISSN 2285-5653, 129-132.


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