Shape identification
(1) The kelp curls into a lump or becomes entangled. The whole body is greenish brown or dark brown with white frost on the surface. After being immersed in water, it expands into a flat long strip, 50-150cm long and 10-40cm wide. The center is thick and the edges are thin and wavy. Leathery, remnant stalk flat cylindrical. Dizzy, taste salty.
(2) The black kunbu piece is ovoid or oblate, with 1-2 times deep pinnate, long fissured lobule, sparse or entire margin. Dizzy, taste salty. Soaking in water and layering hands.
(3) The pinnacle of the wakame sheet has a deep plume, with a raised middle rib in the center. Dizzy, taste salty. It is better to use large tablets, thick body, and green color.
The quality mark "The People's Republic of China Pharmacopoeia" 1995 edition stipulates: In dry products, the iodine (I) contained in the kelp must not be less than 0.35%, and the black quinoa iodine (I) should not be less than 0.20%.
Identification points
Seaweed leaves are leathery, long banded, thick in the middle, with thin edges on both sides, entire edges or creases; kelp leaves with feathery deep sides, leaves long ligulate, margin denticulate or entire; wakame, The leaves resemble long ovate, deep-pinned, with numerous small spots on the surface, and tongues on both sides. [3]
The confounding sea cabbage was frond-contracted, pale green, irregularly sliced ​​after watering, resembling the broken leaves of Chinese cabbage, and the name of the cover was also taken; the goose palmetto was long strip after flooding, resembling many “ Goose intestines, the image is easy to distinguish.
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