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Pepsin is a digestive protease secreted by gastric chief cells in the stomach. These cells secrete pepsinogen, which is then converted into pepsin when activated by gastric acid or existing pepsin. Pepsin is not produced directly by the cells.
Its function is to break down dietary proteins into small peptide fragments. Some proteins are further decomposed into amino acids such as tyrosine and phenylalanine.
| Product Name: | Papain | Part Plant: | PAPAYA |
| Origin: | China | Manufacturer Date: | 2026-01-23 |
| Batch No.: | SH260123PA6 | / | / |
| ITEMS OF ANALYSIS | SPECIFICATIONS | RESULTS | |
|
Appearance Odor Activity of enzyme Loss on drying Loss on ignition Heavy metals (as Pb) Heavy metals (as As) |
White Powder Free of offensive odours ≥6,000USP U/mg ≤5.0% ≤5.0% ≤2.0mg/kg ≤2.0mg/kg |
Conform Conform 6,761USP U/mg 2.31% 1.91% ＜2.0mg/kg ＜2.0mg/kg |
|
| Microbiology | |||
|
Total Plate Count E.Coli Salmonella Yeast and Mould |
<10,000cfu/g None detected in 10g None detected in 10g NMT 100 cfu/g |
<500cfu/g Absent Absent conform |
|
| Storage | STORED HUMIDITY PROTECTED (RH LESS THAN 60) AT TEMPERATURE BELOW 25℃ | ||
| Shelf Life | 1 Year when Properly Stored | ||
The optimal working pH for pepsin is 1.5–5.0. In neutral or alkaline solutions, pepsin will denature and lose its activity.
Recommended conditions for protein hydrolysis:
For pepsin tablets, the suggested activity is 100–300 U per tablet. For digestive enzyme products, the recommended enzyme activity is 50–100 U per serving.
| Weight | Packing Method |
| 1kg | bag/kg, box outside (double plastic bag + Aluminum foil bag inside) |
| 10kgs, 25kg or more | by Drums or carton (2 layers plastic bag inside) |
| Weight | Delivery Method | Delivery Time | Destination |
| 1kg–25kgs | EMS, DHL, UPS, Fedex | 3–7 days | Door to door |
| 25kgs–100kgs | DHL, FedEx, by Air | 3–7 days | Door to door (to Airport by Air) |
| More than 100kgs | by Air | 3–7 days | Door to Airport |
| by Sea | 10–35 days | Door to port |
