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China Polygonum Cuspidatum Extract 20% 50% 98% Resveratrol

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Min. Order / Reference FOB Price
1 kg	US $1.00/ kg

Local Area:	Zhengzhou, Henan, China
R&D Capacity:	OEM, ODM, Other
Payment Terms:	T/T

Certification:	ISO
Assay Method:	HPLC, UV
Application Form:	Lotion, Tablet, Capsule

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Product Description

Product Introduction

Resveratrol (3,5,4'-trihydroxy-trans-stilbene) is a natural compound found in red grape skin, Japanese knotweed (polygonum

cuspidatum), peanuts, blueberries and some other berries. It is a powerful antioxidant produced by some plants to protect

them against environmental stresses. Antioxidants neutralize free radicals, which are believed to be the cause of aging.

Japanese knotweed is the plant source with the highest resveratrol content.

Certificate of Analysis

ItemSpecificationResveratrol20%, 50%, 98%, HPLCAppearanceFine PowderIdentificationPositive, TLCSolubilityGood solubility in alcoholBulk Density40-60g/100mlParticle Size100%Through 80 meshLoss on Drying≤2.0%, 5g / 105ºC / 2hrsAsh content≤2.0%, 2g / 525ºC / 2hrsSolvent ResidueEur.Pharm 2000, Gas ChromatographyTotal Heavy metals≤10ppm, Atomic AbsorptionArsenic≤0.5ppm, Atomic AbsorptionLead≤1.0ppm, Atomic AbsorptionBHC≤0.1ppm, Gas ChromatographyDDT≤0.1ppm, Gas ChromatographyPCNB≤0.1ppm, Gas ChromatographyTotal Plate Count≤1000cfu/gTotal Yeast & Mold≤100cfu/gE.ColiNegativeSalmonellaNegative