Atractylodes macrocephala Bletilla

Bletilla striata

Baizhu

[English name] rhizomaatractylodis Macrocephalae

[source] it is the dried rhizome of Atractylodes macrocephala Koidz. In winter, when the lower leaves are withered and yellow and the upper leaves become brittle, they are dug to remove sediment, dried or dried, and then removed fibrous roots.

[character] the product is irregular and thick mass, 3-13cm in length, 1.5-7cm in diameter, grayish yellow or grayish brown on the surface, with nodular protuberance, intermittent longitudinal wrinkle and groove, fibrous root mark, residual stem base and bud mark on the top. It is hard and not easy to break. The cross section is not flat. It is yellowish white to light brown, with brownish yellow punctate oil chambers scattered. The cross section of the dryer is horny, with dark color or cracks. It is fragrant, sweet and slightly pungent, and slightly sticky.

[identification] (1) the powder is yellowish brown. Calcium oxalate needle crystals are small, 10-32 μ m in length, irregularly aggregated in parenchyma cells, and a few needle crystals are up to 4 μ m in diameter. The fiber is yellow, mostly in bundles, long fusiform, with a diameter of about 40 μ M. the wall is very thick, lignified, with obvious pores and grooves. The stone cells are pale yellow, round, polygonal, rectangular or a few spindle shaped, with a diameter of 37-64 μ M. The parenchyma cells contain inulin and have radial texture on the surface. The vessel elements are short, reticulate and marginated, with a diameter of 48 μ M.

(2) Take 2G powder of this product, put it into a conical flask with stopper, add 20ml ether, shake for 10min, and filter. Take 10ml of the filtrate and evaporate to dryness, add 10% vanillin sulfuric acid solution to make it purple; take another drop of the filtrate, point it on the filter paper, evaporate to dryness, spray 1% vanillin sulfuric acid solution to make it peach red.

(3) Take 0.5g of the powder, add 2ml of n-hexane, ultrasonic treatment for 15 minutes, filter, filtrate as the test solution. In addition, Atractylodes macrocephala Koidz was used as the control medicine, and the control medicine solution was prepared by the same method.

According to the test of thin layer chromatography (Appendix VI b), take 10 μ l each of the two newly prepared solutions, respectively point them on the same silica gel G thin layer plate, develop them with petroleum ether (60-90 ℃) - ethyl acetate (50:1), take them out, dry them in the air, spray 5% vanillin sulfuric acid solution, and blow them with hot air until the spots are clear.

In the chromatogram of the test sample, there should be spots of the same color and a main pink spot (ketone) on the corresponding position of the chromatogram of the reference sample.

[processing] remove impurities from Atractylodes macrocephala, wash, moisten, cut thick slices and dry.

Atractylodes macrocephala take Atractylodes macrocephala tablets, stir fry with fine powder until the surface is covered with soil color, screen out the excess soil. Each Baizhu tablet was 100kg and fulonggan powder was 20kg.

Stir fry Atractylodes macrocephala. Sprinkle the honey baked bran into the hot pot. Add the Atractylodes macrocephala slice when smoking. Stir fry until it is scorched yellow and gives off the scorched aroma. Take it out and sift off the honey baked bran. Each Baizhu tablet is 100kg, and the bran is 10kg.

[inspection] the total ash content shall not exceed 5.0% (Appendix IX K). The acid insoluble ash content shall not exceed 1.0% (Appendix IX K). Take 2G of the coarsest powder, put it into a flask with stopper, add 50ml of 55% ethanol, adjust the pH value to 2-3 with dilute hydrochloric acid, shake continuously for 1 hour, centrifuge for 15 minutes with 4000 rpm centrifuge, absorb 10ml of supernatant, put it in a colorimetric tube, and mix it with the same amount of control solution (take 5ml of ferric chloride solution for colorimetry, add 3ml of cobalt chloride solution for colorimetry, and 0.6ml of copper sulfate solution for colorimetry), Diluted to 10ml with water), placed on white paper, perspective from above, color development should not be deep.

Bitter, sweet and warm. Guipi, Weijing.

[function and indications] invigorate the spleen and replenish qi, dry dampness and diuresis, stop perspiration, and stabilize the fetus. It is used for spleen deficiency, less food, abdominal distension, diarrhea, phlegm, dizziness, palpitation, edema, spontaneous perspiration, fetal restlessness.

Rhizoma Atractylodis Macrocephalae can strengthen the spleen, harmonize the stomach and stabilize the fetus. It is used for spleen deficiency, less food, diarrhea, loose stools and restless fetal movement.

[usage and dosage] 6-12g.

[note] it should not be used with Aconitum.

[storage] store in a cool and dry place to prevent moths.

Chinese PinYin : Bai Shu Bai Ji