【Product Name】:Ginkgo Biloba Extract 

【Botanical Name】: Ginkgo Biloba L.

【Part used】: Leaf

【Appearance】: Brownish Yellow or Yellow powder

【Specification】: 4：1  10：1 / Regular Powder / Ginkgo Flavonoides 24%

【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

Ginkgo trees are pyramidal in shape, with a columnar, sparingly branched trunk up to 30 m (100 feet) tall and 2.5 m(8 feet) in diameter. The fissured bark is grayish, deeply furrowed on older trees, and has a corky texture. The light-colored wood, soft and weak, has little economic value.

Fan-shaped Ginkgo leaves resemble the leaflets of the maidenhair fern and are borne on short, spurlike but greatly thickened shoots. The leathery leaves are up to 8 cm (3 inches) long and are sometimes twice as broad. Two parallel veins enter each blade from the point of attachment of the long leafstalk and fork repeatedly toward the leaf edges.

Most leaves are divided into two lobes by a central notch. Dull gray-green to yellow-green in summer, they turn golden yellow in autumn, remaining on the tree until late in the season, and then fall rapidly.

Chemical Composition

Contains isorhamnetin, kaempferol, quercetin, rutin, quercetin, ginkgo diflavonoids, ginkgo bilobalide A, bilobalide β-ginkgolide C (Ginkgolides A, Ginkgolides B, Ginkgolides C ), catechins, etc. In addition, it contains isobalamone, cephalotaxus, myricetin, syringaxanthin-3-rutinoside, 6-hydroxykynuric acid, trans-linalool oxide, ginkgo acid, ginkgo phenol, bilberry alcohol, etc. ingredient.