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Giant Knotweed P.E.

Giant Knotweed P.E.

Polygonum cuspidatum Sieb. et Zucc.. ), also known as acid barrel rod, acid barrel reed, large elder, and Banzhuang root. Perennial herb with stout rhizomes and horizontal walks. The stems stand erect not only for ornamentation, but also for food. It is produced in southern Shaanxi, southern Gansu, eastern China, central China, southern China, Sichuan, Yunnan and Guizhou, and also in Korea and Japan. It is found in hillside shrubland, valleys, roadsides, and fieldside wetlands. Dig in spring and autumn, remove the beard roots, wash them, cut short or thick slices fresh, and dry them in the sun.

Key words:

Giant Knotweed P.E.

Classification:

Homologous

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DESCRIPTION

Giant Knotweed P.E.

Botanical origin: Polygonum cuspidatum Sieb. et Zucc.. ), also known as acid barrel rod, acid barrel reed, large elder, and Banzhuang root. Perennial herb with stout rhizomes and horizontal walks. The stems stand erect not only for ornamentation, but also for food. It is produced in southern Shaanxi, southern Gansu, eastern China, central China, southern China, Sichuan, Yunnan and Guizhou, and also in Korea and Japan. It is found in hillside shrubland, valleys, roadsides, and fieldside wetlands. Dig in spring and autumn, remove the beard roots, wash them, cut short or thick slices fresh, and dry them in the sun.

【Product specifications】:HPLC, resveratrol: 20%, 50%, 98%

2. Physical and chemical properties

[solubility]: soluble in ether, chloroform, methanol, ethanol, acetone, etc.

3. Technical indicators

1. Appearance: brown powder;

2. Total ash ≤5%, acid insoluble ash ≤2.0%;

3. Loss on drying ≤ 5.0%;

4. Heavy metals≤ 10ppm (Pb≤2ppm, Hg≤1ppm, Cd≤0.5ppm, As≤2ppm);

5. Microorganisms (non-irradiation): total colony number≤ 5000CFU/g; Mold and yeast≤ 500CFU/g;

Salmonella: Negative; E. coli: Negative.

IV. Packaging and Storage

[Product packaging]: double-layer plastic bag inside, aluminum foil bag or cardboard drum outside.

【Packing specification】:25Kg/drum

[Storage conditions]: Store at 2-10 °C in a cool, dry, dark and high temperature place.

【Shelf life】: three years

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