单词	papain
释义	papain /pəˈpeɪɪn / /pəˈpʌɪɪn / noun [mass noun] A protein-digesting enzyme obtained from unripe papaya fruit, used to tenderize meat and as a food supplement to aid digestion.Rich in the protein-breaking enzyme papain, papaya is known to ease digestive complaints and for its anti-ulcer and antimicrobial effects.... Proteolytic enzymes such as papain from papaya and bromelain from pineapple are used in extract form as meat tenderizers. This tropical fruit contains the enzyme papain, which researchers say aids digestion by helping your body break down proteins. Origin Late 19th century: from papaya + -in1.
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