Big blood vine [Pinyin name] Dà Xuè TénÉ¡ [English name] CAULIS SARGENTODOXAE [Source] This product is the dried cane of Sargentodoxa cuneata (Oliv.) Rehd.et Wils. Harvest in the second season of autumn and winter, remove side branches, cut sections, and dry. ã€Properties】 This product is cylindrical, slightly curved, 30 ~ 60cm long, 1 ~ 3cm in diameter. The surface is gray-brown, rough, and the skin is often peeled off in scales. The peeling area is dark reddish brown, and some can see enlarged nodes and slightly concave branches or leaves. It is hard, with a reddish-brown cross-section skin. There are several inwardly embedded wooden parts. The wooden parts are yellow-white, and there are many pore-shaped catheters. The rays are arranged radially. Slightly astringent and slightly astringent. [Identification] 1. Cross-section of the product: the cork layer is composed of multiple rows of cells, containing brown-red objects. The cortical stone cells are constant in groups, and some contain calcium oxalate cubic crystals. Vascular bundle external toughness. The secretory cells in the phloem are often arranged tangentially, separated from the sieve tube group; there are a few stone cell groups scattered. The formation layer inside the bundle is obvious. The xylem ducts are mostly scattered in a single, round shape, with a diameter of about 400 μm, and wood fibers around it. The beam is broad and there are many stone cells on the outside, and some of them contain several calcium oxalate crystals. Stone cells are visible in the medulla. Parenchyma cells contain brown or brown-red objects. 2. Take about 5g of the crude powder of this product, add 50ml of methanol, sonicate for 30 minutes, filter, and evaporate the filtrate. The residue is dissolved by adding 10ml of 2% NaOH aqueous solution, adjust the pH value to 2 with hydrochloric acid, and shake and extract 3 times with ether , 10ml each time, combine the ether solution, evaporate the ether, and add 2ml methanol to the residue to dissolve it as the test solution. Take another 5g of Daxuezhang reference medicinal material and make a control medicinal solution in the same way. According to the thin layer chromatography (Appendix VI B) test, draw 2 μl of the test solution and the control medicinal solution, respectively, and spot them on the same silica gel G thin layer plate with chloroform: acetone: formic acid (8: 1: 0.8) As a developing agent, unfold, take out, dry, spray with 2% ferric chloride ethanol solution. In the chromatogram of the test product, the spots of the same color are displayed on the corresponding position of the chromatogram of the control medicinal material. ã€Processing】 Remove impurities, wash, moisten, cut thick slices, and dry. ã€Sexual taste】 Bitter, flat. [Return] Return to the large intestine and liver passage. [Functions] Clearing away heat and detoxifying, promoting blood circulation and removing wind. Used for abdominal pain, amenorrhea, dysmenorrhea, rheumatism, pain and swelling. ã€Usage and dosage】 9 ～ 15g. [Storage] Store in a ventilated and dry place. [Remarks] The inspection impurity shall be determined according to the impurity inspection method (Appendix â…¨ A) and shall not exceed 1.0%. The moisture shall be measured according to the moisture determination method (Appendix â…¨ H First Method), and shall not exceed 13.0%. The total ash content must not exceed 4.0% (Appendix â…¨ K). The acid-insoluble ash shall not exceed 0.3% (Appendix â…¨ K). Leachables: Alcoholic extractables should be measured according to the hot leaching method (Appendix X A) under the determination of alcohol-soluble extractables, not less than 5.0%.
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