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Bromelain is a protein extract derived from the stems of pineapples, although it exists in all parts of the fresh plant and fruit. The extract has a history of folk medicine use. As a culinary ingredient, it may be used as a meat tenderizer. The term "bromelain" may refer to either of two protease enzymes extracted from the plants of the family Bromeliaceae, or it may refer to a combination of those enzymes along with other compounds produced in an extract. Although tested in a variety of research models for its possible efficacy against diseases, bromelain has no established research evidence as a nutraceutical or drug. Limited evidence exists for possible effectiveness of a product used to reduce pain from osteoarthritis that combines bromelain with trypsin and rutin.〔 ==Extract components== Bromelain extract is a mixture of protein-digesting (proteolytic) enzymes and several other substances in smaller quantities. The proteolytic enzymes are sulfhydryl proteases; a free sulfhydryl group of a cysteine amino acid side chain is required for function. The two main enzymes are: * Stem bromelain - * Fruit bromelain - 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「bromelain」の詳細全文を読む スポンサード リンク
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