Kapok
1、 Pharmacopoeia standard of kapok       . The flowers are harvested in full bloom in spring, removed impurities, and dried in the sun.
      [character] this product often shrinks into a ball. The calyx is cup-shaped, thick leathery, 2-4cm long, 1.5-3cm in diameter, with 3 or 5 lobes at the top, and the lobes are blunt, round, and retrorse; . Petals are 5 pieces, oval obovate or lanceolate oval, 3 ～ 8cm long and 1.5 ～ 3.5cm wide; the outer surface is light brown yellow or light brown, densely covered with stellate hairs, and the inner surface is purple brown with sparse hairs. The stamens are numerous, the base is tubular, the outermost whorls form 5 bundles, and the stigma is 5-lobed. It is light, sweet and astringent.
      [identification] (1) the powder of this product is light brownish red. . The pollen grains are triangular in shape, with a diameter of 50 ～ 60 μ m, reticular texture on the surface, and three germination pores.
      (2) Take 2G of this product powder, add 25ml of ethyl acetate, soak for 2 hours, sonicate for 15 minutes, filter, concentrate the filtrate to dryness, and add 1ml of methanol to dissolve the residue as the test solution. Take another 2G of kapok reference medicinal material and prepare the reference medicinal material solution by the same method. According to the test of thin-layer chromatography (general rule 0502), suck 5 μ l of each of the above two solutions, dot them on the same silica gel G thin-layer plate, use dichloromethane acetone formic acid (20:4:0.2) as the developing agent, develop, take out, dry, and view under the ultraviolet light (365nm). In the chromatogram of the test sample, fluorescent spots of the same color appear at the corresponding position of the chromatogram of the control medicinal material; Spray 10% sulfuric acid ethanol solution and heat it until the spots are clear. In the chromatogram of the test sample, spots of the same color appear on the corresponding position of the chromatogram of the control medicinal material.
      [extract] according to the hot leaching method under the determination method of water-soluble extract (general rule 2201), it shall not be less than 15.0%.
      . Return to the large intestine meridian.
      [functions and indications] clearing heat and dampness, detoxifying. For diarrhea, dysentery, hemorrhoids bleeding.
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2、 Chemical constituents of kapok
The calyx contained 85.66% water, 1.38% protein, 11.95% carbohydrate, 1.09% ash, 0.44% total ether extract, and 0.18% nonvolatile ether extract. The seed contains 9.3% protein, and its amino acid composition mainly includesL-alanine（L-ala-nine），L-valine （L-valine），L-isoleucine（L-isoleucine），l-leucine （L-leucine），L-arginine（L-arginine），glycine(glycine) andL-aspartic acid （L-aspartic acid）； The fatty acid composition of seed oil mainly includes:Myristic acid（myristic acid）13.44％，palmitic acid（palmitic acid）43.61％， 32%, behenic acid 14. 39%, linoleic acid 26; Seeds also contain classesAlpha carotene、Beta carotene（carotenoid），β - sitosterol（β-sitosterol），d-a-Tocopherol （a-tocopherol）， N-hexacosanol, octadecyl palmitate,gallic acid（gallic acid）， 1-galloyl- β -glucose,Ethyl gallate（ethyl gallate）， Tannic acid, glucose, rhamnose, xylose.

3、 Pharmacological effects of kapok
It can clear away heat, relieve dampness, detoxify and stop bleeding. .
① Herbal medicine preparation: treating dysentery is better for the white.
② Materia medica for the original: those who are red get rid of dysentery, while those who are white get rid of dysentery. They often drink Tongwu Yi tea.
③ Lingnan medicine collection: relieving summer heat.
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⑤ Nanning medical records: eliminate damp heat. Treat blood avalanche and golden wound.
⑥ Guangxi chronicle of traditional Chinese medicine: remove dampness and toxin, and treat acne.
⑦ The Handbook of commonly used Chinese herbal medicine of Guangzhou Army: clearing heat and dampness, treating enteritis and bacillary dysentery