product description:

[Chinese name]: Pine Bark Extract

[English]: Pine Bark P.E

[Specifications]:

Proanthocyanidins: 90, 95, 98

Polyphenols: 60%, 70%, 80%, 95%

low poly: 30%, 40%, 50%

[CAS Number]: 133248-87-0

[Origin of raw materials]: China

[Properties]: reddish brown to brown powder

[Plant Source]: The bark of the pine tree of the Pinus genus Pinaceae. Pine is a tree with a height of 45 meters and a diameter of 1 meter at breast height; the bark is reddish-brown, the branches are spread out or obliquely, the crown is wide and tower-shaped or umbrella-shaped. The branches grow once a year (two in Guangdong), and the winter buds are egg-shaped or cylindrical Cylindrical, needles, delicate, slightly twisted, with stomata lines on both sides and fine serrations on the edges; leaf sheaths persist. Male cones are light reddish brown, cylindrical, clustered in the lower bract axils of new branches, spike-like, female bulbs clustered near the top of new branches, lavender, long ovoid seeds, flowering in April, second cones Mature from October to December of the year.

is very widely distributed, from Zhejiang and southern Shandong in the north, Guangxi, Hunan (Cili County) and Taiwan in the south, from the coast in the east, central Sichuan and Guizhou in the west, all over southern China. Generally, it is distributed in the lower reaches of the Yangtze River below the altitude of 600-700m, the middle reaches of about 1200m, and the upper reaches of about 1500m. It is the main timber species in southern China. High economic value.

[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