Hydrolytic enzymes that act on low pH are called as:

Hydrolases are hydrolytic enzymes, which catalyse the hydrolysis reaction by including water to break the bond and hydrolyse it. Lysosomes are the reservoirs of acid hydrolases showing optimum activity a pH 5.0 maintained within the lysosome. These include proteases. nucleases, glycosidases, lipase etc. Related Theory Hydrolases are enzymes that catalyse the cleavage of a covalent bond using water. Types of hydrolases include esterase, such as phosphatases, that act on ester bonds, and proteases or peptidases that act on amide bonds in peptides.