Title of article :
Molecular analysis of yeast population dynamics: Effect of sulphur dioxide and inoculum on must fermentation
Author/Authors :
Constant??، نويسنده , , Magda and Reguant، نويسنده , , Cristina and Poblet-Puig، نويسنده , , Montserrat and Zamora، نويسنده , , Fernando and Mas، نويسنده , , Albert and Guillam?n، نويسنده , , José M، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 1998
Pages :
7
From page :
169
To page :
175
Abstract :
The effects of sulphur dioxide and a commercial starter inoculum on yeast population dynamics have been analysed by a molecular approach. Yeast identification from fermenting Carinyena grape musts was performed by RFLPʹs of mtDNA and rRNA-coding DNA. As expected, the use of a commercial inoculum speeded up the start of fermentation, while SO2 addition limited the development of non-Saccharomyces species. However, this effect was also observed with yeast inoculation. Further analysis of population dynamics could lead to a recommendation for the reduction of the dosage of SO2 by the addition of appropriate inoculum of yeasts in the must. Furthermore, the timing of inoculum addition could be modified to allow a proper contribution of non-Saccharomyces species. Molecular biology analysis of population dynamics could provide a tool to efficiently reduce the dosage of SO2 and adjust the timing of inoculum addition.
Keywords :
Non-Saccharomyces yeasts , Population dynamics , Saccharomyces cerevisiae , Sulphur Dioxide , Wine yeast
Journal title :
International Journal of Food Microbiology
Serial Year :
1998
Journal title :
International Journal of Food Microbiology
Record number :
2107869
Link To Document :
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