Herbal identification
Character identification
Cylindrical twigs with fins, multi-branched at the top, ca. 40-60 cm, branch diameter 2-6 mm, rough surface, dark gray-green to gray-yellow-green, longitudinal and lenticels, lenticels, Gray, slightly raised and slightly outward rewind. The fins are flat, slightly thicker near the base, thinning outwards, 4 to 10 mm wide, 2 mm thick, dark gray-brown to dark brown-red on the surface, with a slender vertical straight texture or microwave-like bend, and easy wings Peel off, often with traces on branches. Hard and tough branches, hard to break, cross-section yellowish white, crude fiber. Gas slightly, bitter taste. In addition, wood fins are also available on the market. Wood fins are broken flat sheets of varying lengths and widths of about 4 to 10 mm, with unequal thickness on both sides. The thickness of one side that grows on branches can be as thin as 2 mm, and it gradually thins out. The soil is brownish yellow, slightly shiny, with fine vertical stripes or slightly wavy curves on both sides, sometimes visible in lateral grooves, light and brittle, easy to break, smooth in cross section, dark red, slight gas, slightly astringent . It is better to use sticks with tender branches, uniform strips, and protruding fins. Those who use fins are preferably pure, reddish-brown, no-branch, no-impurity, and dry.
Microscopic identification of cross-sections of the shoots: 1 epidermal cell, prominently projecting on the outer wall, and being thickened by stratum corneum. The cortex is composed of more than 10 columns of cells and the outer side is 2 to 3 columns with a relatively small shape. Wall thickening of the thick-cornered cells, the following array of irregular parenchyma cells, containing chloroplasts; the inner parenchyma cells are larger, the wall is sometimes micro-wood, some cells have wall holes, parenchyma cells contain more Calcium oxalate clusters, about 17 to 34 μm in diameter. The phloem is thin, most of the cells shrink, and the formation of layers is not obvious. The xylem is wide and consists of ducts, tracheids, wood fibers, etc. The walls are thick and woody. Ray cells single, wooded, with wall holes. There are often annual rings in the xylem. The pith is composed of parenchyma cells, often with an oblique "10" shape, with a few calcium oxalate clusters. After the epidermis of the epidermis ruptures, the limbs of the wing become flat and thin-walled meristem cells, which are continuously split and bolted.
Powder characteristics: The limbs are all fragments of corky cells, light yellow-brown, rectangular or square cells, generally about 58 μm long, 49 μm wide, with thicker walls. Branches often have square cork cells, thick, thick-cornered cell fragments, fibers, and meshes. Thickened threads and scattered clusters. The fiber diameter is 17 to 20 μm, the diameter of the catheter is 13 to 17 μm, and the cluster crystal size is 17 to 34 μm.
Physical and chemical identification to take this product powder 10g, add ethanol 50mL, heat for 1 hour, filtered, the filtrate evaporated, the residue dissolved with chloroform, chloroform solution was taken for the following test:
1 Take 1mL of the solution and evaporate the chloroform. Add 1mL vinegar and dissolve the residue. Add 1 drop of concentrated sulfuric acid and add acetic anhydride to green. (Check sterols)
2 Take 1mL of the solution, add 1mL concentrated sulfuric acid, chloroform solution turns from yellow to dark red. (check phytosterols, triterpenoids) TLC
The chloroform solution was taken as 6β-hydroxyindole-4-en-3-one, β-sitosterol, locust-4-ene-3,6-dione and locust-4-ene-3-one. Control, same point on silica gel G plate, with benzene-ether (3:2) as developing agent, exhibition distance: 17.5cm. The color was developed with 1% vanillin sulfuric acid, and the test article and the control substance showed yellowish-brown or purple spots at the corresponding positions.
Tuna Loin,Frozen Tuna Loin,Fresh Tuna Loin,Yellowfin Tuna Loin
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