Growth and fermentative activities of yeasts Saccharomyces cerevisiae in the presence of killer toxin
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Killer yeasts or killer resistant yeasts can be used as starter cultures in fermentative industries to prevent the environments from contamination by wild yeasts. The aim of the work was to investigate the effect of killer yeasts of Saccharomyces cerevisiae T158C, producer of K1 killer toxin, on the wine yeasts Saccharomyces cerevisiae W11, producer of K2 killer toxin, and W6 strain which was sensitive to both toxins. Wine yeasts W6 and killer wine yeats W11 showed different survival rates and fermentative activity in the presence of killer toxin K1 secreted by T158C strain. Obtained results showed that killer yeasts may be usefull when the fermentative conditions (temperature, pH value) will be suitable the activity of killer toxins.
Publication order reference
E. Drewicz, Instytut Technologii Fermentacji i Mikrobiologii, Politechnika Lodzka, ul. Stefanowskiego 4/10, 90-924 Lodz, Poland, e-mail: firstname.lastname@example.org