THE ABILITY OF FRUIT AND VEGETABLE ENZYME-SYSTEM TO HYDROLYZE ESTER BONDS

The pulp of potato tubers (Solanum tuberosum), topinambur (Helianthus tuberosus) and apples (Malus silvestris) can hydrolyse totally, or alm ost totally, ester bonds in phenyl, alpha- and beta-naphthyl, benzyl a nd cinnamyl acetates. In methyl 4-acetoxy-3-metoxybenzoate and methyl 2,5-diacetoxybenzoate as well as testosterone propionate and 16,17-ace tonide of 21-acetoxy-6-fluoro-16 alpha, 17 beta,21-trihydroxy the hydr olysis is selective towards the substrate and the bioreagent. In contr ast, ethyl benzoate and cinnamate are resistant to hydrolysis.