Product name Birch leaf extract
CAS Registry Number 84012-15-7
EINECS number 281-660-9

Birch (scientific name: Betula platyphylla Suk.): deciduous tree with trunk up to 25 m high and 50 cm thick. It has white smooth paper-like bark, which can be peeled off in layers, and a pencil can be used to write on the thin bark. The leaves of the birch are single and alternate, with serrated edges. The flowers are unisexual, monoecious and the male inflorescences are soft and pendulous. The fruit of the birch tree is flat and small, called winged fruit, which is easily carried by the wind to distant places.

Biological effects of Betulinic acid and its derivatives and methods of production

White birch tree

Trees, up to 27 m; bark grayish white, exfoliating in layers; branches dark gray or dark brown, glabrous, with sparse or dense resin glands or absent; branchlets dark gray or brown, glabrous and without resin glands, sometimes sparsely hairy and sparsely resinous. Leaves thickly papery, triangular-ovate, triangular-rhombic, triangular, rarely rhombic-ovate and broadly ovate, 3-9 cm long, 2-7.5 cm wide, apically acute, acuminate to caudate-acuminate, base truncate, broadly cuneate or cuneate, sometimes slightly cordate or subrounded, margin biserrate, sometimes notched biserrate or simple, sparsely hairy and glandular punctate above when young, glabrous without glandular punctate after maturity, hairy below, Lateral veins 5-7(-8) pairs; petiole slender, 1-2.5 cm long, glabrous.

Characters solitary, terete or rectangular-terete, usually pendulous, 2-5 cm long, 6-14 mm in diameter; peduncle slender, 1-2.5 cm long, densely pubescent, subglabrous when mature, without or with sparse or dense resin glands; bracts 5-7 mm long, abaxially densely pubescent to mature, margin shortly ciliate, base cuneate or broadly cuneate, middle lobe triangular-ovate,

apically acuminate or obtuse, lateral lobes ovate or suborbicular, erect, obliquely spreading to recurved, slightly wider and shorter than middle lobe if erect or obliquely spreading, longer and wider than middle lobe if transversely spreading to recurved.

Nutlets narrowly rectangular, rectangular or ovate, 1.5-3 mm long, about 1-1.5 mm wide, abaxially sparsely pubescent, membranous wings 1 /3 longer than the fruit, less equal to the fruit, equal to or slightly wider than the fruit.

It occurs in northeast China, north China, Henan, Shaanxi, Ningxia, Gansu, Qinghai, Sichuan, Yunnan, and southeastern Xizang. It grows on slopes or in forests at an altitude of 4004100 m. It is very adaptable and widely distributed, especially in moist soil, and is a pioneer tree in secondary forests.

It is also a common species in broad-leaved deciduous forests and mixed coniferous and broad-leaved forests in the North China Plain and Loess Plateau Mountains, and in the southwest mountains.

It is also found in the Soviet Far East and East Siberia, eastern Mongolia, northern Korea, and Japan. The type specimens were taken from the Soviet Far East.

The wood can be used for general construction and making utensils, and the bark can be used to extract birch oil. This species is easy to cultivate and can be used as a garden tree.

Basic Information
Product Name】Birch leaf extract Birch leaf extract
English Name】Birch leaves Extract
Source】Birch leaves extract is the leaf of Betula platyphylla Suk.
Birch leaf extract chemical composition】Bioflavonoids, etc.
【Birch leaf extract storage method】 Ventilation and dry, cool and moth-proof, avoid strong light
Package】1KG/sterilized aluminum foil bag; 25KG/cardboard drum
Expiration date】24 months
Specification】4:1 5:1 10:1 20:1 100:1 or according to customer requirements The default product is water extraction, need alcohol extraction or other extraction solvent can be contacted
Birch leaf extract detection method】TLC (thin layer chromatography)
Birch leaf extract mesh】95% through 80 mesh, or according to customer requirements to customize
Birch leaf extract packaging】0.5-5kg/bag in aluminum foil bag, lined with aseptic bag vacuum packaging, 25kg in cardboard drum, lined with double sterile bag or according to customer requirements

Birch leaf extract production process
Birch leaf extract is made from dried birch leaves, 10 times the amount of 70% ethanol-water as solvent, heated and extracted three times, each time for 2 hours, combined extracts, heated and evaporated to recover ethanol to alcohol-free, alcohol-free extracts continue to heat and evaporate water to specific gravity d = 1.15 of the infusion, the infusion is spray dried by spray drying tower, to obtain ash leaf extract powder, the powder is crushed, passed through 100 mesh vibrating sieve, mixed, packed, and obtained. Mixing, packaging, and obtained.

Company Introduction
Address: Room 202, Building B8, Huanchuang Enterprise Square, Lugu Street, Yuelu District, Changsha City, Hunan Province
Website: http://www.staherb.com/
Business scope: Biotechnology, research and development of plant extracts (can be used in the field of pharmaceutical and health products, cosmetics, feed additives and biological pesticide production and development)
Main products: Eucommia extract - chlorogenic acid (5%-98%), ursolic acid (25%-98%), corosolic acid (1%-98%), bitter amygdalin (50%-98%), epimedoside (10%-98%) and other standardized high-purity plant extracts.

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Whatsapp: +86 13548561509
Email: staherb18@staherb.cn
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