Amylopsin is the starch digesting amylase produced by the pancreas and present in pancreatic juice.
Lipase is any of a class of enzymes that breakdown fats. Lipase is produced by the liver, pancreas, and other digestive organs or by certain plants.
Erepsin is an enzyme complex found in intestinal and pancreatic juices, that functions in the breakdown of polypeptides into amino acids.
Pepsin is an enzyme, produced in the stomach, that in the presence of hydrochloric acid splits proteins into proteoses and peptones.