Joylife Nutripharma Inc

Product overview

Vine Tea Extract is a standardized botanical ingredient derived from the leaves and stems of Ampelopsis grossedentata (also known as Nekemias grossedentata), a traditional medicinal and edible plant with a long history of use in southern China . 

Produced through advanced aqueous or ethanolic extraction technologies, it is primarily characterized by its exceptionally high content of flavonoids, particularly the bioactive compound dihydromyricetin (DHM), which can constitute up to 30-40% of the dry extract . 

In nutraceutical and functional food applications, this extract is highly valued for its broad spectrum of scientifically validated bioactivities, including potent antioxidant, anti-inflammatory, and antimicrobial properties . 

Main specifications: Dihydromyricetin 25%,50%,98%

Plant source: Leaf of Vine Tea., a plant from the Ampelopsis grossedentata family plants

Effective components: Dihydromyricetin

Place of origin of raw materials: Hunan, Jiangxi, Fujian, Guangdong, and other regions.

Solubility: Soluble in ethanol.

HS. Code:13021990

The main production way of Vine Tea Extract Powder(1)Grind & Extract: Dried vine tea is ground and extracted with a solvent (e.g., ethanol or water), often using heat reflux or ultrasonic assistance .
(2)Filter & Concentrate: The liquid is filtered to remove debris and concentrated via vacuum evaporation .
(3)Purify (Optional): The extract is purified using methods like resin adsorption or membrane filtration to remove impurities and enrich specific compounds like dihydromyricetin .
(4)Crystallize & Dry: The purified solution is cooled to crystallize the target compound, then the crystals are separated and dried
Sample specification

Pls feel free to contact us to get Standard COA & Specification of Mangosteen Extract Powder

Item	Standard
Assay	Dihydromyricetin ≥25, 50, 98%
Appearance	White crystalline powder
Odor	Characteristic
Particle Size	95% passed 80 mesh
Loss on Drying	≤5.00%
Ash	≤5.00%
Heavy Metals	≤10mg/kg
Arsenic (As)	≤2mg/kg
Lead (Pb)	≤2mg/kg
Mercury (Hg)	≤0.1mg/kg
Cadmium (Cd)	≤1mg/kg
Total Plate Count	≤1000CFU/g
Total Yeast & Mold	≤100CFU/g
Coliforms	≤10CFU/g
Salmonella	Negative

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