It was found that during controlled autolysis of sedimentary wine yeasts following fermentation of apple and black-currant musts, the polyphenols adsorbed on yeast cells are desorbed . 6-8% of total polyphenols in the must were retained by the yeasts, and of this amount 13.4-18.2% passed on to the autolysate. The polyphenols in the aulolysate were catechin monomers and polymers; no phenolic acids were found to accompany them.
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