Aminopeptidase substrate: Y. Kanaoka et al., Chem. Pharm. Bull., 25, 362 (1977). Determination of leucine aminopeptidase activity in waste water: D. R. Confer and B.E. Logan, Water Res., 32, 31 (1998).
Enzymatic activities in traps of four aquatic species of the carnivorous genus Utricularia.