Medicinal components of lotus leaf

Chinese Name: Lotus Leaf Alias: Bi (Erya) Drug Name: Lotus Leaf Pinyin: Square Name: Lotus Leaf, Lotus Leaf, Fresh Lotus Leaf, Dried Lotus Leaf, Lotus Leaf Charcoal and other trade names: Lotus Leaf, preferably turquoise, dry, clean and complete. English name: original plant lotus leaf Latin name: medicinal lotus leaf original plant lotus. Source: This product is the dried leaves of lotus. Nymphaeaceae. Harvest in summer and autumn, take out the petiole when it is 70% to 80% dry, fold it into semicircle or fan shape, and dry it. Distribution of animal and plant resources: Medicinal materials are produced in most parts of the country. Collection and storage of medicinal materials: collected from June to September, petiole removed, dried to 70% to 80%, folded into a semicircle and dried. Fresh leaves or tender leaves (lotus money) are also used in summer. Lotus leaf production method: spray water, slightly moisten, shred and dry. Lotus leaf charcoal: Take clean lotus leaf and calcine it into charcoal according to the charcoal calcination method (Appendix II D). Lotus leaf charcoal: Take clean lotus leaf, put it into the calcining pot, cover the pot, seal the joint between the two pots with yellow mud, paste white paper on the bottom of the pot, calcine it with fire until the white paper turns brown, and take it out after cooling. Features: this product is semi-circular or folded fan-shaped, and it is quasi-circular after unfolding, with the whole edge or slightly wavy shape, with a diameter of 20 ~ 50 cm. The upper surface is dark green or yellow-green, rough; The lower surface is grayish brown and smooth, with 2 1 ~ 22 thick veins radiating from the center to the periphery; Petiole residue has a protrusion in the center. Fragile and easily broken. The aroma is slightly clear and the taste is slightly bitter. Identify this product powder as grayish green. The upper epidermal cells are polygonal, and the outer wall is papillary or short villi; Stomatal infinitive, 5 ~ 8 accessory guard cells. The longitudinal wall of the lower epidermal cells is slightly wavy and sometimes beaded. Calcium oxalate cluster crystals are common, with a diameter of about 40 μ m and a bitter and flat taste. ① southern Yunnan herbs: "mild in nature and pungent in taste." ② "Materia Medica worships the original": "It tastes bitter, flat and nontoxic." (3) A Compendium of Medical Forest: "Bitter, flat and slightly salty." Entering the heart, liver and spleen meridians. (1) Materia Medica seeks truth: "Enter the gallbladder meridian." ② "Materia Medica Rejuvenation": "Into the heart, liver and lungs." ③ Summary of Materia Medica: "Entering the Foot is too Yin and Yang to know the classics." Functions: clearing away heat and relieving summer-heat, promoting hair growth and clearing yang, cooling blood and stopping bleeding. It can be used for treating polydipsia due to summer heat, diarrhea due to summer dampness, diarrhea due to spleen deficiency, vomiting due to blood heat and metrorrhagia in stool. Lotus leaf charcoal converges, removes blood stasis and stops bleeding. Used for various hemorrhagic diseases and postpartum blood halo. Usage and dosage: 3 ~ 9g fresh15 ~ 30g; 3-6g of lotus leaf charcoal. Store in a ventilated and dry place to prevent insects from eating. Abstract of China Pharmacopoeia: ① From the beginning, Materia Medica: "Ascending and dispersing are consumed, and those who are deficient are forbidden." ② Diet Spectrum of Interesting Life: "Anyone who suffers from excessive pathogenic factors in upper energizer should be treated to eliminate pathogenic factors, and should not be used." Drug compatibility: Outline: "Toona oil, Poria cocos, silver." Textual research: from the dietotherapy of herbs. Identification of raw medicinal materials: dried leaves are usually folded into semicircular or fan-shaped, complete or slightly damaged. After the blade is unfolded, it looks like a round shield with a diameter of more than 30 cm. The forehead is turquoise or brownish green with white short thick glandular hairs; The back is grayish yellow or grayish green, smooth and shiny; There are prominent petiole residues in the center; Full margin; The veins are obvious, with 265438 thick veins +0 ~ 22, radiating outward from the center and divided into many fine veins. Crispy. Slightly fragrant, light and slightly astringent. It is best to have large, intact, green leaves without spots. Chemical constituents of traditional Chinese medicine: brucine, Rhubarb, nornuciferine, Armepavine, Pronuciferine, N- nornuciferine, D-N- methyl Coc-Laurine, Liriodendron, quercetin, isoquercitrin, lotus glycoside, tartaric acid, citric acid and quercetin. It also contains anti-mitotic alkaline neutralization. The leaves contain a variety of alkaloids: nornuciferine, nornuciferine, nornuciferine, andrographis paniculata, anonaine (Roemerine), Armenian papaverine, N-methylcglco-clarine, N-methylchocarine, pronuciferine, Liriodendron, Spermatheridine), and dehydronornuciferine. It also contains anti-mitotic alkaline components. Remarks (1) are used for symptoms such as summer heat, head swelling, chest tightness, thirst, short and red urine. This taste is bitter and flat, its gas is clear and fragrant, and those who are fresh are good at clearing away summer evil. Clinically, it is often used with fresh Pogostemon cablin, fresh Eupatorium odoratum and watermelon Cui Yi. (2) Used for summer diarrhea and other diseases. Lotus leaf can not only clear away heat and relieve summer heat, but also promote spleen yang. It is often used with Atractylodes macrocephala and Lentils to treat summer diarrhea. In addition, spleen deficiency and qi stagnation and diarrhea can also be combined with spleen-invigorating and stomach-nourishing drugs. (3) In addition, this product can be used for various hemorrhagic diseases.