【Product Name】:Vine Tea Extract   

【Botanical Name】:Ampelopsis grossedentata(Hand.-Mazz.)

【Part used】:Leaf

【Appearance】:White to Off white powder

【Specification】: 4：1  10：1 / Dihydromyricetin 50-98%

【Storage Period】: 24 Months

【Package】: 1kg/bag 25kg/drum

【Test Method】: HPLC

【Storage Conditions】: Store in cool and dry places. Keep away from strong light and heat.

Description

The branches are glabrous, purple-brown, sometimes with white powder; tendrils are as long as 12cm. The leaves are two-pinnate compound leaves, sometimes the leaves at the top of the branches are one-pinnate compound leaves, 15-40cm long; petioles are 5-9cm long, glabrous; small leaves are herbaceous, with terminal leaflets elliptical and diamond-ovate , Oval or narrowly ovoid, 4-9cm long, 2-6.8cm wide, apex acuminate or short acuminate, base round or truncated, without hair on the top, green and white below, only a few hairs in the veins , Lateral leaflets are narrow, slightly oblique, usually oblong-ovate; 5-6 pairs of lateral veins. Flowers bisexual, cymes opposite to leaves, diameter 10-15cm, total pedicel length 4-9cm, flowers are small, light green, with bracts at base; calyx is shallow disc; petals 5; stamens 5, opposite to petals; The flower disc is thick and connate with the ovary. The berries are obovoid, about 7mm in diameter, red: black and purple when ripe. Flowering period from May to July, fruiting period from July to August.

Chemical Composition

It mainly contains organic acids, steroids and flavonoids, such as gallic acid, palmitic acid, oleanolic acid, vitis, dihydromyricetin, sitosterol.