Identification
Character identification
The leaves are oblong or obovate, 12-30 cm long and 3-9 cm wide. The tip is pointed, the base is wedge-shaped, and the upper edge is sparsely serrated and the base is full. The upper surface is gray-green, yellow-brown or red-brown, shiny, and the lower surface is light gray or brown-green, and is densely covered with yellow hair. The main veins protrude prominently on the lower surface and are laterally pinnate. Petiole extremely short, brown hair. Leathery and brittle, easy to break. A slight fragrance, slightly bitter taste. It is better to use a complete, colored grayish green.
Microscopic identification
Leaf cross section:
1, the upper epidermal cells are flat and square, the outer thick cuticle; the lower epidermis has most single cell non-glandular hair, near the main vein at multiple curved adult font, air holes can also be seen.
2, palisade organization 3-4 cells.
3, sponge tissue loose.
4. The main vascular bundles are externally tough, nearly annular, and the nucleus sheath fiber bundles are arranged in a discontinuous loop with a walled wood, and surrounding parenchyma cells contain calcium oxalate crystals to form crystalline fibers. The mucous cells are scattered in the main veins and mesophyll, and contain calcium oxalate crystals and tribal crystals.
Powder: reddish brown.
1 Single cell non-glandular hairs Large, multi-bend, some with folded herringbone, obtuse apex, base stenosis, full length up to 1260μm, middle diameter 17-55μm, slightly thicker wall, slightly woody, thicker walls with mesh Texture.
2 The fibers are slender, with a total length of 162-360 μm, a diameter of 7-18 μm, and a wall thickness of 2-8 μm. Some fiber bundles contain calcium oxalate crystals around the fiber bundles to form crystalline fibers; the walls of crystal-containing cells are thickened and micro-wooded.
3 calcium oxalate square crystal short columnar, diamond, double cone, square, diameter 3-27μm.
4 calcium oxalate cluster crystal diameter 10-30μm.
5 The epidermis cells had a slightly bead-like thickening on the surface of the epidermis. The thickness of the stratum corneum was approximately 14 μm.
6 The epidermis cells had irregular surface shapes, indeterminate stomata, and 4-7 secondary cells. There is also mucus cells.
Freeze-dried powder is a sterile powder injection obtained by freezing the liquid medicine into a solid state in a sterile environment, and subliming and drying the water in a vacuum. Freeze-dried powder is composed of a bottle of high-purity and high-active biological protein freeze-dried powder and a high-purity liquid essence. When using, it needs to be connected with a patented vacuum to reconstitute the freeze-dried powder and the essence to activate the biological protein activity.
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YT(Xi'an) Biochem Co., Ltd. , https://www.ytwholefood.com