【Chinese medicine name】Loquat leaf pipaye
【Alias】Broad Leaf, Ba Leaf, Reed Orange Leaf.
【Medicinal parts】Eriobotrya japonica (Thunb.) Lindl.'s leaves.
【Plant form】Evergreen small tree, 3~8 meters high. The sprigs are stout and rust-colored hairy. uniphyllous alternate, leathery; short or nearly sessile; 2 lobes. The leaves are oblong to obovate-lanceolate, short pointed or tapering at the apex, wedge-shaped at the base, sparsely serrated at the edges, dark green above, shiny, densely covered with rust-colored hairs below, and 12~15 pairs of lateral veins. The panicle is apical, densely covered with rust-colored hairs, and the branches are stout; The flowers are dense, the bracts are covered with brown hairs; calyx pot-shaped, yellow-green, densely hairy; petals 5, white, obovate, filigree base thick, slightly triangular; Ovary inferior, outer covered with hairs, 5 chambers, stigma-shaped. The fruit is berry-shaped pear fruit, ovate, oval or nearly round, yellow or orange.
【Distribution of production areas】Mostly planted on the edge of villages, flat land or slopes. It is distributed in Jiangsu, Zhejiang, Guangdong, Shaanxi and south of the Yangtze River Basin.
【Harvesting and processing】It can be harvested all year round, mostly in April ~ May, and tied into small handfuls when it is dry until it is seven or eight percent dry, and then dried in the sun. This product is used for meristem and honey. When raw, spray with water, shred and dry. Take the loquat leaves, take the loquat leaves, stir-fry with honey water, until they do not stick to your hands after cooling. For every 100 kg of loquat leaf silk, 20 kg of honey is used.
【Medicinal properties】Oblong or inverted oval. The apex is pointed, the base is wedge-shaped, the edge is sparsely serrate, and the margin is full near the base. The upper surface is grayish-green, yellow-brown or reddish-brown, smooth; The lower surface is densely covered with yellow hairs, the main vein is protruding prominently on the lower surface, and the lateral veins are pinnate; The petiole is extremely short and covered with brownish-yellow hairs. Leathery is brittle and easy to break. Odorless, slightly bitter taste.
【Sexual taste attribution】Bitter taste, slightly cold. Return to lung meridian, gastric meridian.
【Efficacy and function】Clear the lungs and relieve cough, reduce inversion and stop vomiting. It belongs to the phlegm cough and asthma medicine subordinate cough and asthma medicine.
【Clinical application】Dosage 6~9g, decoction. It is used to treat lung fever cough, asthma, stomach heat, vomiting, irritability and thirst. Moisturize the lungs and relieve cough, and should be fried with honey juice; and stomach breath to stop vomiting, should be stir-fried with ginger juice.
【Pharmacological study】It has sedative, asthmatic and antitussive effects on the respiratory center. Topical application has a strong inhibitory effect on carrageenan's edema, which can significantly reduce urine glucose in mice with hereditary diabetes mellitus and normal mice. Clinical trial treatment of nephritis edema, acne, etc. Decoction or ethyl acetate extract has expectorant and asthmatic effects, and volatile oils have mild expectorant effects. In addition, saponins are also the main components of loquat leaves to suppress cough expectorant. Alcohol extract gavage or topical anti-inflammatory effect. In addition, it also has antibacterial, hypoglycemic and antitumor effects.
