(1) Rich in the protein-breaking enzyme papain , papaya is known to ease digestive complaints and for its anti-ulcer and antimicrobial effects.(2) Proteolytic enzymes such as papain from papaya and bromelain from pineapple are used in extract form as meat tenderizers.(3) This tropical fruit contains the enzyme papain , which researchers say aids digestion by helping your body break down proteins.(4) Papaya contains the enzyme papain , which is one of the best exfoliators around.(5) Take the digestive enzymes bromolain and papain , which, once absorbed, have an anti-inflammatory effect that reduces the body's swelling, pain, tenderness and bruising.