[Interaction of yeasts with tannins. II. Study of various yeasts hydrolysing tannic acid in tannin culture media].

Growth and hydrolytic action on tannins of 6 strains of yeasts (isolated from tanning liquors and xylophagous insects) are studied in culture media containing various concentrations of tannic acid. The influence of medium acidity is also considered. According to the strains, growth is more or less restrained and hydrolytic activity is variable. Except for gallotannins, hydrolysable tannins are not hydrolysed.