Shape identification
A Wei is also known as Wei Quji and Cai Weiwei. It is the resin of the Umbelliferae plant A. ferrugineum, A. sinensis and Fukang A.fructus. It is mainly produced in Central Asia and other countries and regions such as Iran and Afghanistan. China also has production in Xinjiang. It mainly grows in sandy areas such as the Gobi Desert and barren hills. Mostly harvested before its tree did not bloom. First loosen loose soil to expose the root and cut off the stem from the root. That is, the emulsion flows out of the section and is covered with leaves. After about 10 days, the exudate is solidified, such as fat, and it can be shaved and dried in a cool place. Hot save. Its sexual temperature, bitter taste, with the product of elimination, insecticidal effect, commonly used in the treatment of disease rickets, insect plot, meat plot, confidants, malaria, dysentery embolism. On the market there are counterfeit counterfeit goods processed from the bulbs of the genus Allium.
Authentic Weiwei is made up of pellets of varying sizes. The appearance is dark yellow or black brown, and it becomes red-brown when it is stored for a long time. The newly collected ferulae have a white or brownish-brown cross-section or reddish-brown streaks. They are called "multicolored ferulic"; substances such as fat-like pastes have a hardness of white wax; they are ground with water to form a white emulsion; Nearly 20% of the volatile oil, so it has a strong and persistent garlic-like odor, it is also known as "Sweet A Wei", with a taste of bitter taste as garlic.
The appearance of the processed counterfeit product is irregular block or granular, and the surface is yellow-brown or tan, slightly shiny, and the section does not have the characteristics of genuine products; the texture is loose and the hand grinds are fragile; there is no genuine special garlic odor. It smells like garlic but not strong.
Modern pharmacological studies have shown that the specific odor of A. ferrugine can be absorbed from the intestine and can be used as an expelling agent for enema; its decoction has an inhibitory effect on Mycobacterium tuberculosis and can be used as a stimulant and the processing pseudo Products do not have these effects, misuse will delay treatment, it should be carefully identified.
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