Chitosan is a natural biological high-molecular polymer appearing as white crystalline powder. It possesses strong hygroscopicity and is mainly extracted from the shells of crustaceans such as shrimps and crabs, or fungal cell walls. Owing to its excellent biocompatibility, biodegradability and broad-spectrum antibacterial properties, it is widely applied in medical repair, aesthetic care, food industry and other fields.
| Grade | Deacetylation / Substitution Degree |
|---|---|
| Food Grade | 85%, 90% |
| Medicine Grade | 90%, 95% |
| Industrial Grade | 80%, 85%, 90% |
| Agricultural Grade | 80%, 85%, 90% |
| Water Soluble Chitosan | 80%, 85%, 90% |
| Carboxymethyl Chitosan | 80% |
| Hydroxypropyl Chitosan | 80% |
| Chitosan Oligosaccharides | 5000, 3000, 2000, 1000Da |
| Parameter | Standard Specification | Result |
|---|---|---|
| Appearance | Dark red powder | Complies |
| Odor | Characteristic | Complies |
| Taste | Characteristic | Complies |
| Astaxanthin content | ≥2.0% | 2.69% |
| Loss on drying | ≤5.0% | 3.17% |
| Ash | ≤5.0% | 1.11% |
| Heavy Metals | ||
| As | ≤1ppm | Complies |
| Pb | ≤1ppm | Complies |
| Cd | ≤1ppm | Complies |
| Hg | ≤0.1ppm | Complies |
| Microbiological Control | ||
| Total plate count | ≤30000cfu/g | 6800cfu/g |
| Yeast & mold | ≤100cfu/g | Complies |
| E. Coli | ≤0.92 MPN/g | Complies |
| Salmonella | Negative | Complies |
| 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 |
Chitosan is a natural high-molecular polymer derived through deacetylation primarily from the shells of marine crustaceans like shrimp and crab, or fungal cell walls.
Multiple grades are available to suit specific industrial requirements, including Food Grade (85%, 90%), Medicine Grade (90%, 95%), Industrial Grade (80%-90%), Agricultural Grade, Water-soluble, Carboxymethyl, Hydroxypropyl Chitosan, and Chitosan Oligosaccharides.
Chitosan possesses a strong natural positive electrostatic charge, allowing it to adhere tightly to negatively charged biological surfaces such as human hair and skin, delivering superior conditioning and film-forming properties.
In agriculture, Chitosan serves as an eco-friendly biopesticide and elicitor that stimulates plant immune responses against fungal pathogens, while functioning effectively as a soil conditioner and growth enhancer.
Sample and small-batch orders (1kg) are sealed in double inner plastic bags enclosed within an aluminum foil pouch and protective outer carton. Bulk shipments (10kg, 25kg, or larger) are packed in durable fiber drums or cartons with double-layered inner plastic bags.
Orders under 25kg are sent via express air couriers (EMS, DHL, UPS, FedEx) within 3-7 days door-to-door. Medium batches (25-100kg) utilize courier or air freight (3-7 days), while large commercial shipments (>100kg) are transported via air freight or sea freight (10-35 days).