Grape Skin P.e

[English]: Grape skin P.E

[Specifications]:

Proanthocyanidins: 30, 40, 50

Polyphenols: 20%, 30%, 50%

Resveratrol: 5%, 10%

【CAS Number】：501-36-0

[Origin of raw materials]: China

[Properties]: Brown-red fine powder

[Plant Source]: It is the mature peel of VitisviniferaL. Deciduous woody vine, up to 10m long. The young stems are bald or slightly woolly. The leaves are papery, alternate, round or ovoid, 10-20cm wide, often 3-5 lobed, heart-shaped at the base, with thick and slightly sharp tooth gaps on the edge, and often densely covered with spider filamentous wool; petiole long Up to 4-8cm. Flowers heterogeneous, different plants, large and long panicles, opposite to leaves; flower Chemicalbook stalk without tendrils; calyx is very small, cup-shaped, entire or inconspicuous 5-tooth cracks; petals 5, yellow-green, sticky apex The base is separated, the base is separated, and it is cap-shaped when it blooms. The stamens are 5; the flower disc is raised, composed of 5 glands, and the base is connate with the ovary; the ovary is 2 compartments, each compartment has 2 ovules, and the style is short. Conical. The berries are ovoid to ovoid-shaped, rich in juice, purple-black or red and blue when ripe, and covered with wax powder. Flowering in June. The fruiting period is from September to October.

[Solubility]: soluble in water and most organic solvents

Two, technical indicators

1. Appearance: reddish brown powder;

2. Total ash content ≤5%, acid-insoluble ash content ≤2.0%;

3. Loss on drying ≤5.0%;

4. Heavy metals ≤10ppm (Pb≤2ppm, Hg≤1ppm, Cd≤0.5ppm, As≤2ppm); 5. Microorganisms (non-irradiated): total colony count ≤1000CFU/g; mold and yeast ≤100CFU/g; Salmonella: Negative; E. coli: Negative.

Three, packaging and storage

[Product Packaging]: Double-layer plastic bags are used inside, aluminum foil bags or cardboard drums are used outside.

[Packing specifications]: 25Kg/barrel

[Storage conditions]: Store in a cool, dry, dark, and high temperature place.

[Shelf Life]: Three years