Taxonomy
Plants - Angiosperms - Monocotyledon - Alismatidae - Araceae - Araceae - Millennium Family - Millennium Health
Microscopic identification
Cross-section of rhizome: The wood column layer is often removed. The parenchyma cells contain reddish-brown or light-brown masses and contain more calcium oxalate crystal clusters and a few external crystal bundles. Vascular bundles are scattered, externally tough or circumjacent, and most of the externally lithe-type ones have large bundles of bast fibers, light yellow, thick-walled, woody, and some have pits. Many oil chambers, large, 180-375um in diameter, surrounded by cell walls, 4-5 layers.
Physical and chemical identification
(1) Take powder 1g, add ether 5ml cold soaking, filtration, take the filtrate 1ml, set the evaporating dish, after ether dilute, add 1 drop of 5% vanillin concentrated sulfuric acid solution, and finally become purple. (Check the Millennium Health Volatile Oil)
(2) Thin-layer chromatography takes 50-100g of powder and extracts its volatile oil in a volatile oil extractor. Extract volatile oil plus equal amount of ethyl acetate as the test solution, and take the aromatic alcohol a- pinene and B- pinene as the reference solution. Each sample and control solution were pipetted onto the same silica gel G plate and developed with hexane-ethyl acetate (85:15) with a 15 cm spread. With 5% vanillin concentrated sulfuric acid test solution, the color was developed, and the same color spot was observed at the corresponding position for the sample and the control.
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