3.1.1.70 benzyl esters of substituted phenyl propanoates + H2O benzyl esters of aliphatic and aromatic carboxylic acids, benzyl esters of phenylalanine Phe-By and tyrosine Tyr-By are hydrolyzed Aspergillus niger benzyl alcohol + substituted phenyl propanoate - ? 358862 3.1.1.70 cetraxate benzyl ester + H2O - Aspergillus niger cetraxate + benzyl alcohol - ? 358861 3.1.1.70 L-Phe benzyl ester + H2O - Aspergillus niger benzyl alcohol + L-phenylalanine - ? 370545 3.1.1.70 L-Tyr benzyl ester + H2O - Aspergillus niger benzyl alcohol + L-tyrosine - ? 370546 3.1.1.70 additional information enzyme shows no cellulase, protease or lipase activity, does not hydrolyze ester groups such as Tyr-Me, Tyr-tert-Bu, 1-Me, 1-iso-Pro and 1 Ph Aspergillus niger ? - ? 89