86-29-87551862
Home / Products / Herbal Extract / Details
video

Japanese Knotweed Extract

Factory directly supply.
Lead time:1-2days
Comply with Europe standard of PAH4 ,Benzoapyrene ≤10 ppb, PAH4 ≤50 ppb.
Non-Pesticide,especially Difenoconazole,Tebuconazole.
10years export experience to give you great support.
Botanical Name:Polygonum cuspidatum
Used Part: Root
Appearance:Brown Fine Powder
Main Specification:10:1,20:1,50%Resveratrol ,98%Resveratrol

Description

Shaanxi LonierHerb Bio-Technology Co., Ltd is one of the most professional manufacturers and suppliers of japanese knotweed extract in China, featured by quality products and good price. Please rest assured to wholesale bulk natural japanese knotweed extract for sale here from our factory. Contact us for free sample.

 

1.Product Introduction

Japanese knotweed extract is the dried rhizome and root of Polygonum cuspidatum Sieb.et Zucc. Excavated in spring and autumn, removed fibrous roots, washed, cut into short or thick slices while fresh, and sun-dried. Distributed in Northwest, East, Central, South and Southwest China. It has the functions of dispelling dampness and relieving jaundice, clearing heat and detoxifying, dispersing blood stasis and relieving pain, relieving cough and resolving phlegm. Used for damp-heat jaundice, stranguria, leucorrhea, rheumatic arthralgia, carbuncle sore, water-fire scald, amenorrhea, dysmenorrhea, traumatic injury, lung-heat cough.

Polygonum cuspidatum Extract is used in traditional Chinese and Japanese medicine to treat a variety of ailments, including fungal infections, various skin inflammations, cardiovascular and liver diseases, and more. Resveratrol and emodin are the main functional components in Polygonum cuspidatum. Studies have shown that resveratrol and emodin exhibit broad antioxidant properties, such as LDL cholesterol oxidation and lipid peroxidation. Resveratrol has also been shown to help cardiovascular health and blood circulation, relieve pain, clear away heat and dampness, and detoxify and remove phlegm. Other ingredients including danthrone, emodin methyl ether and rhein have anti-inflammatory, anti-arthritic and antimicrobial activity.

japanese knotweed extract Powder

2.Technical Date Sheet

Product Name

Resveratrol Powder


Botanical Name

Polygonum cuspidatum


Used Part

Root


Test items

Specifications

Test Methods

Assay( Resveratrol)

NLT50%

HPLC

Solvent Extraction

Water and Alcohol


Appearance

Brown Fine Powder

Visual

Odor and Taste

Characteristic

Organoleptic

Sieve analysis

90% through 80 mesh

80 Mesh Screen

Loss on Drying

≤5.0 %

105℃/2 hrs

Total Ash

≤5.0 %

GB 5009.4

Bulk Density

40~60 g/100mL

GB/T 18798.5

Tap Density

60~90g/100mL

GB/T 18798.5

Lead (Pb)

∠3.0mg/kg

GB 5009.12

Arsenic (As)

∠2.0mg/kg

GB 5009.11

Cadmium (Cd)

∠1.0mg/kg

GB 5009.15

Mercury (Hg)

∠0.1mg/kg

GB 5009.17

Solvents Residue

∠5000 mg/kg

GC

Total Aerobic Count

≤1000cfu/g

GB 4789.2

Yeast and Moulds

≤ 100cfu/g

GB 4789.15

E-Coli

Negative

GB 4789.3

Salmonella

Negative

GB 4789.4

Staphylococcus Aureus

Negative

GB 4789.10

3.Function

●Edible efficacy

Polygonum cuspidatum can be used by humans. It can supplement the human body with rich nutrients, especially vegetable protein and amino acids, as well as the content of minerals. After people eat this vegetable, they can absorb and utilize the nutrients contained in it as soon as possible. Speeding up the metabolism of the human body can enhance the quality of the human body, and it has a very good conditioning effect on the physical weakness and low immunity of human beings.

●Medicinal efficacy

The medicinal effect of Polygonum cuspidatum is also very good. Usually people can take it to expel wind, relieve pain, and reduce dampness. It has an excellent therapeutic effect. In addition, it can also treat human bruises and burns, as well as various skin diseases such as malignant sores and ringworm. The therapeutic effect is also very obvious.

japanese knotweed extract Factory

4.Other main chemical components and properties

①Emodin: Molecular formula C15H10O5, molecular weight 270.23. Orange-red crystal (glacial acetic acid). mp.256℃~257℃. Almost insoluble in water, soluble in ethanol, soluble in sodium carbonate and ammonium hydroxide. Soluble in sodium hydroxide (potassium), it is cherry red. Solubility (g/100ml): ether 0.14, chloroform 0.071, benzene 0.041, carbon tetrachloride 0.01 (25℃)

②Chrysophanol: synonym rhein, Chrysophanic acid, 3-Methylchrysazin. Molecular formula C15H10O4, molecular weight 254.23. Golden yellow hexagonal flake crystal (acetone) or needle crystal (ethanol).mp.196℃, Can sublime. Soluble in ether, chloroform, benzene, glacial acetic acid, ethanol, slightly soluble in methanol, insoluble in petroleum ether, insoluble in water, sodium bicarbonate and sodium carbonate aqueous solution, soluble in sodium hydroxide aqueous solution and hot carbonic acid Aqueous sodium solution.

③Emodin 6-methyl ether (Emodin monomethyl ether): molecular formula C16H12O5, molecular weight 284.26. Golden yellow crystal, mp.207℃, can be sublimated. Soluble in sodium hydroxide aqueous solution, the solubility is similar to chrysophanol.

④Emodin-6-methyl ether-8-D-glucoside (Anthraglycoside A): molecular formula C22H33O10, molecular weight 447.26. Yellow needles (dilute methanol), mp.230℃~232℃.

⑤Emodin 8-D-glucoside (Anthraglycoside B): molecular formula C21H20O10*1.5H2O, molecular weight 459.39. Golden yellow crystal (absolute ethanol), light yellow needle crystal (dilute ethanol, 1 molecular water). mp.191℃ ~194℃. Hardly soluble in water, ethyl acetate, soluble in ethanol, insoluble in benzene.

⑥Resveratrol glucoside (Polydatin): synonym Polydatin, Peceid. Molecular formula C20H22O8, molecular weight 390.40. The trihydrate is a colorless needle crystal (30% methanol or 40% acetone). mp.223℃~226℃(decomposition), easily soluble in methanol, ethanol, acetone, hot water. Soluble in ethyl acetate, sodium bicarbonate, sodium hydroxide aqueous solution, slightly soluble in cold water, insoluble in ether.

⑦Resveratol: Colorless needle crystal, mp. 256℃~257℃, sublimation at 261℃. Soluble in ether, chloroform, methanol, ethanol, acetone, etc.

⑧Other ingredients: flavonoids such as Quercetin, quercetin-3-galactoside, quercetin-3-rhamnoside, etc.; β-sitosterol, palmitic acid, stearic acid, etc. Polygonum cuspidatum leaves and stems also contain a small amount of hydroxyanthraquinone compounds, organic acids, flavonoids, etc.

5.Certificate

Japanese knotweed extract certificate

6.Third Part Test report

Test Report 2

7.Factory

Japanese knotweed extract Factory

With the concept of “Quality First, Integrity First”, Shaanxi LonierHerb Bio-Technology Co., Ltd. are strictly performing the standard in production and quality control. For Japanese knotweed extract ,if any question ,welcome to contact by e-mail:info@lonierherb.com or whatsapp/Wechat:86-17702909819

Hot Tags: japanese knotweed extract, suppliers, manufacturers, factory, wholesale, buy, price, bulk, pure, natural, high quality, for sale, free sample, Lungwort Extract Powder, Ashwagandha Extract Powder Withanolides, Lepidium Meyenii Extract Powder, Powder

Contact Supplier