Papain Enzyme China Supply CAS No. 9001-73-4 Food Additive Papain
|FOB Price:||US $1 / kg|
|Min. Order:||25 kg|
|Min. Order||FOB Price|
|25 kg||US $1/ kg|
|Payment Terms:||T/T, Western Union, Paypal, Money Gram, Bitcoin|
- Model NO.: 9001-73-4
- Certification: FDA
- Storage Method: Normal
- Type: Dextranase Enzyme
- Trademark: Dahua
- Origin: China
- Nutritional Value: Non-nutritional
- Packaging Material: Drum
- Shelf Life: >12 Months
- Assay: 99%
- Specification: 9001-73-4
- HS Code: 3822009000
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Papain (CAS No. 9001-73-4)
Product Name: Papain
CAS RN.: 9001-73-4
The papain precursor protein contains 345 amino acid residues,and consists of a signal sequence (1-18), a propeptide (19-133) and the mature peptide (134-345). The amino acid numbers are based on the mature peptide. The protein is stabilised by three disulfide bridges. Its three-dimensional structure consists of two distinct structural domains with a cleft between them. This cleft contains the active site, which contains a catalytic diad that has been likened to the catalytic triad of chymotrypsin. The catalytic diad is made up of the amino acids - cysteine-25 (from which it gets its classification) and histidine-159. Aspartate-158 was thought to play a role analogous to the role of aspartate in the serine protease catalytic triad, but that has since then been disproved. Nonetheless, it does appear to play a role.
Papain breaks down tough meat fibres, and has been used for thousands of years to tenderise meat eaten in its native South America. Meat tenderisers in powder form with papain as an active component are widely sold.
Papain can be used to dissociate cells in the first step of cell culture preparations. A ten-minute treatment of small tissue pieces (less than 1 mm cubed) will allow papain to begin cleaving the extracellular matrix molecules holding the cells together. After ten minutes, the tissue should be treated with a protease inhibitor solution to stop the protease action. Left untreated, papain activity will lead to complete lysis of the cells. The tissue must then be triturated (passed quickly up and down through a Pasteur pipette) to break up the pieces of tissue into a single cell suspension.
It is also used as an ingredient in various enzymatic debriding preparations, notably Accuzyme. These are used in the care of some chronic wounds to clean up dead tissue.
Papain is added to some toothpastes and mint sweets as a tooth whitener. Its whitening effect is, however, minimal because the papain is present in low concentrations and is quickly diluted by saliva. It would take several months of use, to have a noticeable effect.
Papain is the main ingredient of Papacarie, a gel used for chemomechanical dental caries removal. It does not require drilling and does not interfere in the bond strength of restorative materials to dentin.
Papain has been known to interfere with urine drug tests . It is found in some drug detox products.
Papain can be used as enzyme preparation. Mainly used for beer cold, soften meat, cereals pre-cooking and hydrolyzed protein production.
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Wuhan Dahua Weiye Pharmaceutical Chemical Co.,Ltd, a professional raw powder factory in China for over 10 years, all powders are factory directly supplying. Imaginechem can help our worldwide customers shorten the time and lower the cost of drug and medical device Research and Development through cost-effecitve and efficient outsourcing solutions.
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4. How to proceed order: First: Please let me know the itmes you are looking for, quantity, and the destination country. Second: You confirm all details, and offer us purchasing order; Third: We send the detail price of our product and offer the suitable shipping method for reference. Forth: You confirm the order and pay money 100% in advance and send us the detail address. Fifth: We arrange the shipment according to your requirements. Sixth: We offer after-sales service after you receive parcel
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