Identification of woody herbs

Herbal identification

Shape identification

Root cylindrical, flat cylindrical, length 5 ~ 15cm, diameter 0.5 ~ 5.5cm. The surface is yellow-brown, gray-brown, or tan, and most of the cork has been removed. There are longitudinal grooves and side marks, sometimes with a reticular texture. Hard, hard to break, slightly flat section, gray yellow, gray brown or brown, scattered dark brown oil chamber points, forming a brown ring, a radial texture, the old roots more decaying. The aroma of the gas is intense and specific. The taste is sweet and bitter afterwards. It is slightly pungent.

木香

Microscopic identification

Root cross-section: The cork layer is composed of 2 to 6 cork cells, and sometimes there is a residual skin layer. Tenacity cross-section: The cork layer is composed of 2 to 6 rows of woody cells, and sometimes there are residual skin layers. The phloem is broad and the sieve groups are obvious; the bast fibers are bundled, sparsely scattered or arranged in 1 to 3 rings. Layer formation loop. Xylem vessels are arranged in a single row radially; wood fibers are present near the formation layer and near the central duct; primary xylem four prototypes. In the phloem and xylem, there are round or elliptical oil chambers. The product contains inulin in parenchyma cells.

Powder characteristics

Yellow or yellow-brown.

1. A large number of inulin pieces, with cold chloral hydrate device, was in the shape of a room, irregular mass, and some surfaces are radial lines;

2. Wood fiber bundles, yellow, long shuttle, tip inclined or fine tip, diameter of 16 ~ 24μm, wall thickness of 4 ~ 5μm, non-wooden or micro-wood, pit transverse slit-like or herringbone, ten Font

3. Reticulate, bordered pits and ladder catheter diameter 32 ~ 90μm, catheter molecules are generally very short, and some only 64μ long;

4. The oil cell debris is light yellow and contains volatile oil droplets. 5 thin-walled cells yellowish brown, some containing small calcium oxalate crystals. In addition, there are cork cells, bast fibers, and irregular brown lumps.

Physical and chemical identification

Take the product powder 0.5g, add ethanol 10ml water bath heating about 1min, filtered. Take 1ml of the filtrate into a test tube and add 0.5ml of concentrated sulfuric acid. (Inspection of dehydrocostus lactone); after immersing in 70% ethanol, add 15% of α-naphthol solution and 1 drop of sulfuric acid, which is purple. (Check sugars)

Woody: The dry root of Aucklandia lappa I) ecne is a cylindrical or semi-cylindrical, 5–10 cm long and 0.5–5 cm in diameter. The surface is yellow-brown to gray-brown with obvious wrinkles, longitudinal grooves and lateral root marks. Strong, hard to break, cross-section from grayish brown to dark brown, the play is grayish yellow or light brown-yellow, forming a brown ring, with radial texture and scattered brown spotted oil. Gas incense specific, slightly bitter taste.

[Chuan Muxiang]: The dried root of the Asteraceae plant Vladimiria souliei (Franch) Ling or Vladimiria souliei (Franch) 1ing Var cinerea Ling. Cylindrical or longitudinal semi-cylindrical, slightly curved, 10 to 30 cm long and 1 to 3 cm in diameter. Surface yellow-brown or brown, with longitudinal wrinkles, loofah-like fine tendons at the exfoliation of the outer skin; occasionally black sticky jelly-like substance on the root, commonly known as "oil head." The body is lighter, hard and brittle, and easily broken. The section is yellowish-white or yellow, with deep yellow sparse oil spots and fissures. The wood is broad and has radial textures; some centers are rotted. Gas slightly fragrant, bitter, chewing sticky teeth.


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Phenibut

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