Excellent Papain with High Quality

• Type: Gunkanmaki
• Storage Method: Frozen
• Shelf Life: >12 Months
• Transport Package: Paper
• Specification: large
• Trademark: china
• Origin: China
• HS Code: 2801100000
• Production Capacity: 5000kg/Year

Product Description

Papain is the English translation of 'papaïne', the name given by Wurtz & Bouchut [1] to a proteolytically active constituent in the latex of the tropical papaya fruit (Carica papaya). The crude dried latex contains a mixture of at least four cysteine proteinases and other enzymes [2] and initial preparations of 'papain' were contaminated by other enzymes. Improvements in purification procedures introduced by Kimmel & Smith [3] have allowed the isolation of pure papain. It must be noted that the term 'papain' is also applied to the commercial crude dried latex used in industry. Early work on papain, which is summarized in a number of reviews [2,4-6], is responsible for major advances not only in the field of cysteine proteinases but also in enzymology generally. Papain is probably the most widely studied member of the cysteine proteinase class of enzymes, and was the first cysteine proteinase to have its three-dimensional structure determined [7]. Consequently, this enzyme has been considered to be the archetype of cysteine proteinases and accordingly, family C1 is referred to as the papain family of cysteine proteinases.
Papain is the English translation of 'papaïne', the name given by Wurtz & Bouchut [1] to a proteolytically active constituent in the latex of the tropical papaya fruit (Carica papaya). The crude dried latex contains a mixture of at least four cysteine proteinases and other enzymes [2] and initial preparations of 'papain' were contaminated by other enzymes. Improvements in purification procedures introduced by Kimmel & Smith [3] have allowed the isolation of pure papain. It must be noted that the term 'papain' is also applied to the commercial crude dried latex used in industry. Early work on papain, which is summarized in a number of reviews [2,4-6], is responsible for major advances not only in the field of cysteine proteinases but also in enzymology generally. Papain is probably the most widely studied member of the cysteine proteinase class of enzymes, and was the first cysteine proteinase to have its three-dimensional structure determined [7]. Consequently, this enzyme has been considered to be the archetype of cysteine proteinases and accordingly, family C1 is referred to as the papain family of cysteine proteinases.