500g, Bo He, HERBA MENTHAE,Tcm Herbal

"Chinese Pharmacopoeia": mint
Name: Mint
Pinyin: Bò He
English name: HERBA MENTHAE
Source This product is the dry ground part of the mint mint Mentha haplocalyx Briq. Summer and autumn season stems and leaves lush or flowers to three rounds, the election sunny, graded mining, dried or dried.
Traits of the stems were square column, there are branches, long 15 ~ 40cm, diameter 0.2 ~ 0.4cm; surface purple brown or light green, angular with hairy, internode length 2 ~ 5cm; crisp, cross-section white , The pulp is hollow. Leaves on the students, a short handle; leaves wrinkled curl, complete flattened after a broadly lanceolate, long oval or ovate, long 2 ~ 7cm, wide 1 ~ 3cm; upper surface dark green, , Thin was hairy, with concave gland scales. Paralyzed axillary axillary, calyx campanulate, apex 5-toothed, corolla lavender. After rubbing a special cool aroma, spicy cool.
Identification:

(1) the surface of the product leaves: glandular head 8 cells, diameter of about 90μm, single stem cells; small hair and head are single cells. Non-glandular hair 1 to 8 cells, often curved, wall thickness, micro-verrucous protrusions. Lower epidermal stomata more common, straight axis type.
(2) to take this product leaves a small amount of powder, the amount of sublimation of oil, add sulfuric acid 2 drops and vanillin crystal a small amount, the beginning was yellow to orange yellow, add water 1 drop, that is purple.
(3) take this product powder 0.5g, add petroleum ether (60 ~ 90 ℃) 5ml, dense plug, shake for several minutes, place 30 minutes, filtration, the filtrate as the test solution. Another menthol reference substance, add petroleum ether made of 1ml each containing 2mg solution, as the reference solution. According to the thin layer chromatography (Appendix Ⅵ B) test, learn the test solution 10 ~ 20μl, the reference solution 10μl, respectively, points on the same silica gel G plate, benzene - ethyl acetate (19: 1) Expanded, removed, dried, sprayed with vanillin sulfuric acid test solution - ethanol (2: 8) mixed solution, heated at 100 ℃ to the spot color clear. For the test product chromatography, chromatography with the reference substance in the corresponding position, was the same color spots.
Concocted to remove the old stems and impurities, slightly spray water, slightly run, cut short section, timely low temperature drying. This product is mostly 5 ~ 8mm short section, dark green, purple brown or taupe. The volatile oil should not be less than 0.40% (ml / g) as determined by the method described above.
Taste: Xin, cool.
Meridian: to the lungs, liver by.
Functional attending salty wind. Clear head, Touzhen. For Fengreganmao, the beginning of the wind, headache, red eyes, throat paralysis, mouth sores, rubella, measles, chest tightness nausea.
Usage and dosage 3 ~ 6g, into the decoction should be under the next.
Storage: cool and dry place.
Note:

(1) for wind-heat table disease, not sweating, headache redness, often with Nepeta, mulberry leaves, chrysanthemum, burdock and other applications; if cold cold, not sweat, but also With basil, Notopterygium equivalent use. Mint Qingli throat effect is significant, mainly for wind-heat sore throat, both the role of evacuation of wind-heat, often with the Arctium, Ma Bo, licorice and other applications. Can also be developed into the throat, cure throat swelling fever pain. Mint has a leading role, can help measles through, can be with the Nepeta, Arctium, Chan Yi equivalent use.
Excerpt: "Chinese Pharmacopoeia"

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