Pueraria lobata powder is long columnar or tabular, white or yellowish. The section is rough and there are many fibers, and the fibers and silt layers alternately form concentric annular longitudinal stripes. Hard and heavy, pink and slightly sweet. It is best to have a fat, solid, white, powdery foot and less fiber.
Puerarin can dilate coronary artery and cerebral artery, lower blood pressure and significantly increase blood supply of ischemic tissue. It contains 10 amino acids and 10 trace elements needed by human body. It has certain anti-cancer and anticancer effects.
Extended data
Pueraria lobata, a perennial deciduous vine, is 10 m long. The whole plant is covered with tawny coarse hair. The tuberous root is cylindrical, thick, with grayish yellow skin and silty fiber inside. The stem is stout at the base and multi-branched at the upper part. Three-leaf compound leaf; The terminal petiole is longer; The blade is rhombic and round, 5.5- 19 cm long and 4.5- 18 cm wide. The apex is acuminate, the base is round, and sometimes it has lobes. Lateral leaflets are small, obliquely ovate, with unequal sides, pale as frost on the back, white on both sides and pubescent. Stipules peltate, elliptic, small stipules acicular.
Racemes axillary or terminal, corolla blue-purple or purple; Bracts narrowly linear, caducous, bracteoles ovate or lanceolate; Calyx bell-shaped, 0.8- 1 cm long, calyx teeth 5, lanceolate, upper part 2-toothed, lower part 1 tooth longer; Flag petal is nearly round or oval, slightly concave at the top, with two short spikes at the base, the wing petal is narrow and oval, shorter than the flag petal, and there are often spikes at the base of one side, and the keel petal is slightly longer than the wing petal; Stamens 10, dimorphic; Ovary linear, style curved.
The pods are linear, 6-9 cm long, 7- 10 mm wide, and densely covered with yellow-brown bristles. The seeds are ovoid, reddish brown and shiny. The flowering period is April-August, and the fruiting period is 8-65438+1October.
Pueraria lobata was born in hillside, roadside grass and wet places. Except Xinjiang and Tibet, it is distributed all over the country. Cultivated or wild in shrubs and sparse forests in Shan Ye. Distributed in Guangdong, Guangxi, Sichuan, Yunnan and other places.
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