Medicinal properties
ã€Properties】
The product is conical, twisted, length 8 ~ 25cm, diameter 1 ~ 3cm. The surface is brown-yellow or dark-yellow with sparse verrucous fine root scars, rough upper parts, twisted longitudinal wrinkles or irregular reticulate lines, and the lower part has smooth lines and fine wrinkles. Hard and brittle, easy to break, yellow section, middle reddish-brown, commonly known as sub-fungus, to clear the fire and yin-based; the middle of the old root was dark brown or brown-black, depleted or has become empty, called the dry clam, to clear The fire is mainly poisoned. Gas slightly, bitter.
ã€source】
The product is a dried root of the L. astragalus Scutellaria baicalensis Georgi. In the spring and autumn seasons, excavation was carried out to remove fibrous roots and silt. After sun exposure, it hit rough skin and dried.
[sexual taste and classics]
Bitter, cold. Lung, bile, spleen, stomach [3], large intestine, small intestine.
ã€Functions and Indications】
Huang Hao
Heat dampness, Xiehuo detoxification, bleeding, fetal stability, lower blood pressure. For wet temperature, summer temperature chest tightness, vomiting evil, hot and humid full, diarrhea, jaundice, Hyperactivity cough, high fever, polydipsia, blood spit phlegm, swollen sore, fetal movement uneasy.
[use caution]
This product is bitterly cold and hurt stomach, spleen and stomach Deficiency should not be used. Where in the cold to vent, in the cold abdominal pain, liver and kidney deficiency and less abdominal pain, blood deficiency, abdominal pain, spleen deficiency diarrhea, kidney deficiency, diarrhea, spleen edema, blood dryness, qi deficiency, water, lungs, cold, cold, asthma, cough, and blood Exhausted tires, yin and dripping, law and disable. [3]
[Pharmaceutical compatibility]
"Medicine pairs": "The mountains and the keel are used to make them. They are swift and green. They fear the sand, peony, and vermilion. They match Chaihu, pass through the table, and reconcile the Shaoyang. They are equipped with Atractylodes, heat and tocolysis; Reduced Xincai; with Huang Lian, heat dampness; with Gorgon fruit, Magnolia, digestion and stomach.
[Identification drug]
Astragalus is divided into aphid and axillary.
ã€Methods】
Huang Qi film:
Remove impurities, set in boiling water and cook for 10 minutes, remove, boring, cut thin slices, dry; or steam for half an hour, remove, cut thin slices, dry (care to avoid exposure). The product is a round or irregular shaped sheet, the outer skin is yellow-brown to tan, and the cut surface is yellow-brown or yellow-green with a radial texture. According to the above [identification] (1), (2) under the test, should show the same results; according to the above [content determination] under the measurement method, containing Baicalin (C21H18O11) not less than 8.0%.
Wine Huang Xie:
Take a yellow tablet and stir-fry it according to the recipe for wine (Appendix II D). The product is a round or irregular shaped sheet, the outer skin is tan, and the cut surface is yellow-brown. It has a radial texture with a slight focal spot. The center part is brown. According to the method described in [Content Determination] above, the baicalin content should not be less than 8.0%.
Microscopic features
Huang Hao
Cross section: The cork layer consists of several layers to more than 20 layers of flat cells, scattered among cysts. Cork tissue outer rupture. The cortex is narrow and scattered in fibers and stone cells. The phloem is broad, with many fibers and stony cells. Stone cells are mostly distributed on the lateral side. Fibers are scattered or clustered in multiple groups. They are mostly distributed on the medial side. The formation of circular layers is obvious; the vessels of the xylem are scattered or clustered, surrounded by Wood fiber bundles; wood rays are wider. There are one or more concentric cork tissue rings in the center of the old root. Parenchyma cells also starch grains.
[differential]
(1) The product has a yellow powder. Bast fibers are scattered or bundled into several bundles. They are spindle-shaped, 60 to 250 μm long and 9 to 33 μm in diameter. They have a thick wall and fine pores. Stone cells are round, square or rectangular, with thick or thick walls. Cork cells brown, polygonal. Reticulated catheter more common diameter of 24 ~ 72μm. The wood fiber is broken and has a diameter of about 12 μm with sparse twill holes. There are many starch granules, single spherical, diameter 2-10μm, obvious umbilical point, and complex granules composed of 2～3 granules.
(2) Take 1g of the product powder, add 20ml of methanol, sonicate for 20 minutes, filter, evaporate the filtrate, and add 1ml of methanol to the residue to dissolve the sample solution. Another one gram of scutellaria reference drug was used as the reference drug solution. Then take the baicalin reference substance and add methanol to make a 1 mg solution containing 1 mg as a reference solution. According to the thin layer chromatography (Appendix VI B) test, 5 μg of each of the above three solutions was pipetted and spotted on the same silica gel G-laminate board containing 4% sodium acetate solution of sodium carboxymethyl cellulose as a binder. Ethyl acetate-butanone-formic acid-water (5:3:1:1) was used as a developing agent, pre-equilibrated for 30 minutes, unfolded, taken out, air-dried and sprayed with 1% ferric chloride in ethanol. In the chromatogram of the test sample, the spots of the same color were observed at the positions corresponding to the chromatograms of the reference herbs; the same dark green spots were observed at the positions corresponding to the chromatogram of the reference substance.
[concocted research]
The process study determined the activity of Astragalus membranaceus in different processed products. The results showed that steaming is a good method. After 30 minutes of steaming, the effect of enzyme inhibition can basically be achieved. The cooking method can also be used, but the time is appropriate for 10 minutes. Evaporation processed Astragalus, neat appearance, bright color, high baicalin content; cooking process Astragalus, appearance shape is poor, the color is not clear, and can cause loss of baicalin, it should be steaming method is preferred.
[Storage] set ventilated and dry place, moisture-proof.
[Commonly used]
Huang Hao
1. No heat on the wet temperature, can be applied with talc, Baiyiren, wolfberry, etc.;
2. For hot and humid diarrhea, abdominal pain, and often with white peony root, puerarin, licorice use;
3. For jaundice due to hot and humid accumulation, can be used with cotton, cotton, wolfberry fruit, light bamboo leaves equivalent.
4. Treatment of fever, fever, often with Coptis, hawthorn and other compatibility; governance Hyperactivity cough, can be equivalent to Anemarrhena, Morus alba;
5. Treatment of blood heat and phlegm can be equivalent to habitat, Dan Pi, Arborvitae leaves;
6. For heat sores, it can be used together with Yinhua and Forsythia. For fetal movement disturbed, often with Atractylodes, Zhuru and other applications.
ã€Clinical application】
Astragalus - original plant
1. For hot and humid fever, chest tightness, thirst do not want to drink, and damp heat diarrhea, jaundice embolism. It can be used in combination with talc, white peony root, tincture, etc. for hot and humid temperature; it is equivalent to dampness, hot diarrhea, abdominal pain, and white peony root, puerarin, and licorice; for jaundice caused by hot and humid accumulation, it can be combined with capillaris, medlar, and bamboo. Leaves equivalent.
2. For fever, high fever, polydipsia, or lung hyperactivity cough, or heat Sheng forced blood spills and heat sores and so on. Treatment of fever, fever, often with Coptis, Gardenia and other compatibility; governance Hyperactivity cough, can be used with Anemarrhena, Morinda equine; governance blood heat cramps, with the habitat, moutan, Oriental Arborvitae leaves equivalent; Heat sores can be used with honeysuckle, forsythia and other drugs.
In addition, the product has the role of heat and tocolysis, can be used for fetal movement disturbed, often with Atractylodes, Zhuru and other applications.
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