Oenococcus oeni strains were isolated from Nero di Troia wines undergoing spontaneous malolactic fermentation (MLF). Samples were taken at the end of alcoholic fermentation (AF) and during MLF. Strains were grouped using a multiplex RAPD-PCR analysis. Then, six strains were inoculated in two wine-like media with two different ethanol concentrations in order to evaluate their capacity to grow and to perform MLF. A quantitative PCR (qRT-PCR) approach was adopted in to monitore the physiological state of the strains selected. A positive correlation between the malolactic activity performance and the ability to develop and tolerate stress conditions was observed for two selected O.oeni strains.
Stress responsive genes as biomarkets to trace technological properties of selected Oenococcus oeni.
CAPOZZI, VITTORIO;Russo, P.;SPANO, GIUSEPPE
2011-01-01
Abstract
Oenococcus oeni strains were isolated from Nero di Troia wines undergoing spontaneous malolactic fermentation (MLF). Samples were taken at the end of alcoholic fermentation (AF) and during MLF. Strains were grouped using a multiplex RAPD-PCR analysis. Then, six strains were inoculated in two wine-like media with two different ethanol concentrations in order to evaluate their capacity to grow and to perform MLF. A quantitative PCR (qRT-PCR) approach was adopted in to monitore the physiological state of the strains selected. A positive correlation between the malolactic activity performance and the ability to develop and tolerate stress conditions was observed for two selected O.oeni strains.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
