Customization: | Available |
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Certification: | RoHS, BRC, ISO, FDA, HACCP |
Assay Method: | HPLC-MS, GPC, HPLC, UV |
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1. Anti-diarrhea: Tannin in oak bark can astringent the intestine and reduce intestinal secretion, thus playing the role of anti-diarrhea.
2. Hemostasis: Tannin in oak bark can converge blood vessels and reduce bleeding, thus playing a role in hemostasis.
3. Anti-inflammatory: Tannins in oak bark can inhibit the growth of bacteria and viruses, thus playing an anti-inflammatory role.
Step 4 Relieve pain: Tannins in oak bark can reduce inflammation and swelling, which can relieve pain.
5. Antioxidant: Tannin in oak bark can be antioxidant and reduce the damage of free radicals, thus playing a role in anti-aging and disease prevention.
Items | Specifications | Results |
Appearance | Brown | Brown powder |
Identification | Positive | Complies |
Assay | 98 | 98.5% |
Ash | ≤5.0% | 2.55% |
Loss on drying | ≤5.0% | 1.20% |
Ignition residue | ≤2.0% | 0.25% |
Heavy metals | ≤10ppm | Complies |
Pb | ≤2.0ppm | Complies |
As | ≤2.0ppm | Complies |
Odor | Characteristic | Complies |
Particle size | 100%through 80 mesh | Complies |
Microbioiogical: | ||
Total of bacteria | ≤1000cfu/g | 100cfu/g |
Fungi | ≤100cfu/g | Complies |
Salmgosella | Negative | Complies |
Coli | Negative | Complies |
Conclusion |
Conform with USP/FCC/E302 specification |
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Storage condition | Store in cool & dry place, Do not freeze. Keep away from strong light and heat. | |
Shelf life | 2 years when properly stored |