Classification of herbs: Roots and rhizomes
Name of herbs: Pueraria Mirifica Gegen
Description:
This product is the dried root of Pueraria Mirifica and Pueraria Mirifica Vine of the legume family (Leguminosae).
[Phytomorphology]
1. Kudzu Puerarialobata (willd.) ohwi
Lianas, the whole plant is covered with yellowish-brown long stiff hairs. Roots plump. Leaves ternate-complex, long-petiolate; apical petiolules longer; stipules peltate, ovate-long elliptic; terminal leaflet rhombic-ovate, sometimes 3-lobed, 8-19cm long, 6.5-18cm wide; lateral leaflets broadly ovate, smaller than terminal leaflet. Racemes axillary; calyx campanulate, 0.8-1cm long, 5-dentate; calyx teeth yellow pilose; corolla orchid-purple or purple, 1.2-1.5cm long, flag petals suborbicular or ovate-orbicular, with 2 short auricles at the base, winged petals narrowly elliptic, usually auriculate on one side of the base; stamens 10; ovary linear, styles curved. Pods bar-shaped, flattened, 5-9cm long, 0.7-1cm wide, outside covered with yellow-brown hirsute hairs. Seeds ovoid, brown. Flowering in May-September, fruiting in August-October.
2. Puerariathomsonii Benth.
Lianas. Root powdery large. Stipules lanceolate-long elliptic; terminal leaflet rhombic-ovate to broadly ovate, sometimes lobed. Calyx yellow hirsute; corolla purple, 1.6-20 cm long; pods long elliptic, flattened, 10-12 cm long, 1-1.2 cm wide; seeds reniform or orbicular. Seeds reniform or rounded. Flowering period June-September, fruiting period August l0 months.
[Herb shape]
This product is flaky or cylindrical, semi-terete, the surface is white or light brown, fibrous, and there are several concentric rings in the cross section. The taste is light or slightly sweet. The one with rough surface and strong fiber is kudzu; the one with smoother surface and strong powder is kudzu. The tablets are in the form of thick slices or cubes, showing powdery or fibrous.
[Note] Due to the difference in origin and herb properties, the herbal commodity has wild kudzu root and powdered kudzu root.
[Habitat Distribution]
Born on mountain slopes and grassy roadsides, and in the shadier and wetter parts of sparse forests; kudzu is widely distributed throughout the country. Kudzu is distributed in Guangdong, Guangxi, Guizhou, and Yunnan. It is cultivated.
[Harvesting]
Dig up the roots from October to around April of the next year, wash and scrape off the outer skin, and then cut longitudinally into slices 0.5-1cm thick; or cut into slices 12-15cm long, cylindrical or semi-cylindrical, and then dried in the sun or over a light fire.
[Chemical composition]
The main components in the roots of kudzu and kudzu vine are isoflavones. Both contain Puerarin, daidzin and its glycosides, daidzin 4', 7-diglucoside (4', 7-dihydroxyisoHavone), 7-xyloside puerarin, 3`-hydroxy puerarin. 3`-methoxy puerarin, formononetin and genistein. It also contains Puerosides A and B (Pueroside A, B), Sophoradiol (Sophoradid), and Soy Saponins A and B (Sogosapogenol A, B).
[Pharmacological effects]
There are contractile and diastolic effects on smooth muscle; intravenous or gavage administration of Pueraria Mirifica extract, total flavonoids, and Pueraria Mirifica transiently and markedly lowered the blood pressure in normal anesthetized dogs or awake hypertensive dogs. Pueraria lobata flavonoids and puerarin significantly slowed heart rate in normal myocardial ischemic dogs. Pueraria Mirifica extract counteracted isoprenaline-induced hypotension, attenuated or even completely abolished the hypotensive effect of adrenaline, and enhanced its hypotensive effect. Pueraria lobata total flavonoids and puerarin have obvious coronary vasodilating effects. Reduce the oxygen consumption of myocardium and improve the metabolism of ischemic myocardium. Pueraria lobata wine extract, soybean glycoside elements and puerarin have obvious preventive effects against arrhythmia induced by aconitine and barium chloride.
[Taste and Function] Pueraria lobata has a sweet, pungent flavor and flat nature. It has the functions of relieving the exterior to reduce fever, generating fluids to quench thirst, and stopping diarrhea.
[Indications and Usage]
It is used for symptomatic fever, thirst without sweating, headache, strong neck, impenetrable measles, diarrhea, dysentery. It is used raw to reduce fever, and simmered and cooked to stop diarrhea.
[Dosage] 5-10g.
[Notes]
The flowers of the above 2 plants are called kudzu in traditional Chinese medicine. It has the function of detoxifying alcohol and removing stomach heat. It is used for thirst, headache, vomiting, and blood in stool with dampness and heat after drinking. Decocted with water. The dosage is 3-5g.