Item

Specification

Appearance

white fine powder

Odor&Taste

Characteristic

Fingerprint

Corresponds to reference powder

Resveratrol(HPLC)

≥99.0%

Emodin(HPLC)

≤2.0%

Powder Size

≥95% through 80 Mesh

Ash

≤5.0%

Loss on Drying

≤8.0%

Heavy Metals

≤20mg/kg

Arsenic

≤2mg/kg

Cadmium

≤2mg/kg

Lead

≤1.0mg/kg

Mercury

<0.2 mg/kg

Pesticides Residue

Complies with USP standard

Health Inspection

Total Aerobic

≤1000CFU/g

Mold and Yeast

≤100CFU/g

Total Coliforms

≤40MPN/100g

Escherichia coli

Absence in10 g

Salmonella

Absence in10 g