Features:
1) Product name: giant knotweed extract
2) Botanical name: polygonum cuspidatum sieb
3) Part used: rhizome
4) Description: orange or redish brown powder
5) Resveratrol: ≥20%
6) Particle size: 80mesh
7) Loss on drying: ≤5.0%
8) Heavy metals: ≤20PPM
9) Arsenic: <4.0%
10) Pesticide residue: Negative
11) Total plate count: ≤1000cfu/g
12) Molds and yeasts: ≤100cfu/g
13) E-coil: Negative
14) Salmonella: Negative
Giant knotweed rhizome along with root belonging to polygonum,
pdygonaceae is a kind of perennial herb. It is mainly produced in
Jiangsu, Zhejiang, Anhui, Jiangxi etc. Cuspidatin, purple extract
powder derived from it tastes bitter with cool character.
Following is its application:
1) Promoting blood circulation and relieving pain in menopause,
Arthralgia due to wind-cold-dampness and traumatic injury;
2) Clearing away pathogenic heat and dampness in moist heat ICT and
leukorrhagia;
3) Clearing away hea
Giant Knotweed Extract




