Resveratrol Powder

Product introduction

Resveratrol powder is of polyphenol compound and generally made from Giant knotweed or Polygonum cuspidatum and grape Vitis. Resveratrol and its derivatives are mainly found in at least 72 plants of 21 families and 31 genera including Arachis, Veratrum, Cassia, Mulberry, etc.

The roots and rhizomes of Polygonum cuspidatum are the source to extract.

Natural resveratrol mainly exists in Polygonum cuspidatum in the form of polydatin and high content of resveratrol can be obtained through biological fermentation. Natural resveratrol in plants is rare.

Product Character

English name: Resveratrol powder

CAS number: 501-36-0

Molecular formula: C14H12O3

Specification: 20%,50%,98% HPLC

Botanical source: grape peel or giant knotweed

Appearance: low-content brown powder, high-content white powder.

Physical and chemical properties: colorless and odorless needle-like crystals, hardly soluble in water, easily soluble in ether, chloroform, methanol, ethanol and other organic solvents

Extract Ratio

Resveratrol Content	Extract Ratio
7%	20:1
20%	30:1-40:1
40%	60:1-80:1
99%	200:1

Extract Method

Polygonum cuspidatum, a traditional TCM herb, itself contains a small amount of resveratrol, but it contains up to about 3% polydatin. Which can turn to resveratrol after biological fermentation. Some scholars use rhizozyme bacteria to carry out liquid fermentation of the crude extract of polydatin to convert polydatin into resveratrol, with a conversion rate of 95.8%.

Resveratrol exists in the form of resveratrol glycosides in many plants, which can be hydrolyzed into resveratrol powder with help of enzyme. This method can reach higher outcome.

ACTIVE INGREDIENT	Resveratrol powder
APPEARANCE	Brown to Fine powder
COLOR	Yellow brown
TASTE & ODOR	Characteristic
PARTICLE SIZE	100% pass 80 mesh
MOISTURE (%)	≤ 5%
ASH (%)	≤ 5%
DENSITY	50-65grams/100ml
HEAVY METAL	Total <10PPM Pb<2PPM As<2PPM Cd<0.5PPM Hg<0.1PPM
PESTICIDE RESIDUE	Complies with NOP & EU organic standard
MICROBIOLOGICAL
TPC (CFU/GM)	<10000 cfu/g
MOULD & YEAST	< 100cfu/g
COLIFORMS	＜20 cfu/g
PATHOGENIC BACTERIA	Negative
STAPHYLOCOCCUS	Negative
SALMONELLA:	Negative
LISTERIA MONOCYTOGENES	Negative
STORAGE	Cool, Ventilate & Dry
PACKAGE	25kgs/drum
SHELF LIFE	24Months
REMARK	Customized specification also can be achieved

50% Resveratrol Nutrition
Item	Result
Moisture	3.1
Ash	3.2
Fat	0.4
Protein	9.24
Dietary fiber	0
Carbohydrates	84.5
Calories(kj/10Os)	1.59x103

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