The adsorption capacity of yeast
biomass is significantly influenced by the structure of
present anthocyanins and by other physico-chemical
parameters of red wines. The degree of adsorption
increases with decreasing pH, and multipolar anthocyanins,
especially those with several free hydroxyl
groups, are adsorbed preferentially. It is also important
whether the anthocyanin molecule is acylated
by remnants of either acetic or cumaric acids