| ITEMS | STANDARD |
| Appearance | Brown to brown yellow powder(Relate to Purity) |
| Oder | Characteristic |
| Taste | Characteristic |
| Paiticle size | Pass 80 mesh |
| Loss on drying | =<5% |
| Heavy metals | <10ppm |
| As | <1ppm |
| Pb | <3ppm |
| Flavonoids | >=20% |
| Total Plate Count | <10000cfu/g or <1000cfu/g(Irradiation) |
| Yeast & Mold | <300cfu/g or 100cfu/g(Irradiation) |
| E.Coli | Negative |
| Salmonella | Negative |
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