Kvasny Prum. 1958; 4(9): 195-197 | DOI: 10.18832/kp1958023

Experiments aimed at controlled changes of fermenting properties of yeast.Peer-reviewed article

O. NEČAS, A. KARÁSEK

During the experiments, we tried to achieve in yeasts the adaptation to ferment lactose and melibiose at the regeneration of the yeast cells from protoplasts without membranes and their fragments. Just the protoplast culture and their regeneration on soils with these sugars is not enough for developing of the adaptation. During regeneration on soils with filtrate homogeneity or autolysate of brewer's yeast, which ferment melibiose, of the 271 isolated strains we obtained 8 strains of yeasts that fermented melibiose. During passaging on molasses these yeasts again lost this ability to ferment melibiose. (In Czech, English summary only)

Keywords: yeast, controlled changes, fermantation

Published: September 1, 1958