The influence of ethanolic extracts of Capsicum annuum and Levisticum officinale on the specific growth rate, lag phase duration and the amount of yeasts biomass of Candida sphaerica F-II-7a, Candida famata A-II-4b, C. famata M-I-1a oraz Yarrowia lipolytica P-II-6b, Y. lipolytica A-101 was studied . The effect of spices addition was studied during the yeast propagation in Bioscreen C at the temperature of 28⁰C. A stimulating effect on the growth of tested strains was observed. An important diminution of lag phase, of the time to reach maximal growth rate and the increase of μ_max were noted in the presence of 0,1 and 1% spices extracts, specially for C. sphaerica and C. famata.

39-48