Acorus calamus

English name [ ] BHIZOMA ACORI CALAMI
[ alias ] Bai Chang, calamus, mud, smelly, leaf calamus calamus calamus
[ source ] the strains of Tibetan traditional medicine. For the Araceae plant Acorus calamus rhizome is the dried rhizome of Acorus calamus L. Qiu Dong two season of excavation, removal of fibrous roots and mud, dried.
[ character ] this product is a flat cylindrical, slightly curved, long 4~ 20cm,0.8 ~ 2cm in diameter, the surface is greyish brown to tan, festival, internodes length0.5 ~ 1.5cm, with longitudinal wrinkles, a mask is concentrated dot shaped root marks; leaf scars oblique triangle, around the interactive alignment, often around the side stem base. Residual scalelike leaves and hairy roots. Hard, section light brown, endothelial layer ring is apparent, visible many brown oil cell. Gas strong and specific, spicy.
Discrimination [ ]
(1) the transverse: epidermal cell square, wall thickening, tan. Cortex is broad, parenchyma cells for ring chain arrangement, large intercellular spaces, scattered with the fiber beam and Ye Jiwei beam, leaf trace bundle collateral type within the cortex was apparent. In the column hash most vascular bundle, Zhou Mu and tough type. Parenchyma of brown oil cell. Parenchyma cells contain starch grains.
(2) take the powder 2G, plus ethanol5ml, heated to reflux for 20minutes, cool, taking supernatant as sample solution. Another Acorus calamus contrast medicinal material 2G, the same method contrast medicinal material solution. According to thin layer chromatography ( Annex VI B ) test, to draw the two kinds of solution of the5 U L, respectively, in the same gel G thin-layer plate, with chloroform as expansion agent, spread out to dry, spray,, with 10% sulfuric acid and ethanol solution, heating at 105 C to spot color clear. Chromatography for the test, with the control medicinal material in the corresponding location on chromatography, the same color main spot.
[ ] according to determination of the content of volatile oil determination method ( Appendix x D ) determination. This product contains volatile oil shall not be less than 2% ( ml / g ).
[ processing ] to remove impurities, cut into pieces, dried.
[ ] taste bitter, symplectic, warm, dry, sharp.
[ ] warming stomach functions, antiphlogistic and acetanilide. Used for tonifying stomach Yang, indigestion, food stagnation, diphtheria, anthrax and other.
[ usage]3 ~ 6g.
[ ] the ventilation dry storage.
Excerpts from" Chinese Pharmacopoeia" [ ]

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