One of the protease enzymes present in pineapples is bromelain (Ananas comosus). Bromelain is the main protease found in pineapple stem extracts, whereas fruit bromelain is the main enzyme fraction found in pineapple juice. Bromelain from pineapple stems also contains a few other small cysteine endopeptidases (ananain, comosain) (SBM). Despite the fact that fruit bromelain (FBM) was found...