I bought He Shou Wu today, I don t know if it s true or not, please help me identify it if I know Ch

Shou Wu is made from Shou Wu and black beans, which should be black, because Shou Wu is fresh when dug out of the mud, and it looks more like a yam, with whiskers and pulp. Generally, the shou wu is cut into slices or cubes, and the dry powder will be a little sticky after preparation. There are flaky and granular Chinese medicinal materials like Shou Wu, but the color of Shou Wu is relatively dark, a bit like coal, but not so hard.

He Shou Wu is made by mixing raw He Shou Wu with black bean juice and rice wine and steaming together. The test method is to use physical and chemical identification: a small amount of koji drug powder, put it on the filter paper and add a few drops of sodium hydroxide solution, and the color is red.

The true and false He Shou Wu can be distinguished from the following four aspects.

2. Color and texture: The surface of the real Polygonum multiflorum is reddish-brown or reddish-brown, wrinkled and uneven, with shallow grooves, light yellow-brown or reddish-brown sections, and special-shaped vascular bundles, forming a cloud brocade-like pattern, commonly known as "tendons", and the quality is solid. The surface color of the fake Polygonum multiflorum is gray and smooth, the color of the cut surface is white, there is no gluten in the middle, and the texture is crunchy.

3. Cancane: Fake Polygonum multiflorum vines are generally artificially made by inserting real Polygonum multiflorum vines into the fake Polygonum multiflorum when they are planted later, and they will be pulled out by pulling hard.

4. Taste: The real He Shou Wu has a bitter and astringent taste, and the fake He Shou Wu has a light taste.

**] Dried tuber roots of Polygonum multiflorum of the knotweed family.

Efficacy] Preparation of Polygonum multiflori: tonifying the liver and kidneys, benefiting sperm and blood, black beard hair, strengthening muscles and bones, dissolving turbidity and lowering lipids.

Shenghe Shou Wu: detoxification, carbuncle, malaria, laxative.

Trait identification] 1It is clumpy or irregularly spindle-shaped.

2.The surface is reddish-brown or reddish-brown, wrinkled and uneven, with a distinct root mark at each end, revealing fibrous vascular bundles.

3.Solid quality, weight, not easy to break.

4.The section is light yellow-brown or light reddish-brown, powdery, and there are 4 11 "cloud brocade pattern" rings (special-shaped vascular bundles) in the skin.

5.The gas is slight, and the taste is bitter and sweet.

Microscopic identification] cross-section.

1.The cork layer is a series of cells containing a reddish-brown substance.

2.There are 4 11 abnormal vascular bundles in the tissues of the lateral phloem, one is a single vascular bundle, and the other is a composite vascular bundle, all of which are exotological, and the ducts are scarce.

3.**Vascular bundles are clumb-shaped, with few ducts, tracheids and a few wood fibers, and the center is primary xylem.

4.The parenchyma cells contain starch granules and calcium oxalate clusters.

Powder: yellow-brown.

Calcium oxalate clusters are large and numerous, and occasionally clusters and square crystals are combined. Bordered perforated catheters.

Ingredients] lecithin, free anthraquinone.

It is the dried tuber root of Polygonum multiflorum.

Origin] mainly produced in Henan, Hubei, Guangxi, Guangdong, Guizhou, Sichuan, Jiangsu and other places.

Harvesting and processing] Harvest and harvest when the leaves wither in autumn and winter, cut off both ends, wash, cut into large pieces, and dry.

Character identification] medicinal materials: clumpy or irregular spindle-shaped. The surface is reddish-brown or reddish-brown, wrinkled and uneven, with shallow grooves, and has transverse and elongated dermatome-like protrusions and fine root marks.

The cut surface is light yellow-brown or light reddish-brown, powdery, and the skin has a circular special-shaped vascular bundle ring, forming a cloud brocade-like pattern, and the wood is larger, and some are woody cores. The breath is slight, and the taste is slightly bitter and sweet.

Decoction pieces: irregular thick pieces or blocks. Yu Tong medicinal herbs.

Preparation of Polygonum multiflori: It is an irregularly shrunken piece with a thickness of about 1cmThe surface is dark brown or tan, uneven.

Hard, cutic, tan or black. The breath is slight, and the taste is slightly sweet and bitter.