Benzoin

This product is irregular small, slightly flattened, often bonded into clumps. Surface orange yellow, with a wax-like luster (a natural fat); or irregular cylindrical, flat block. Surface white to yellowish white (artificial cutting fat). Brittle, fragile, cross section flat, white, gradually bending to place the yellowish-brown to reddish brown. Melt is heated to soften. Gas aromatic, slightly acrid taste, chewing sand feeling.

Pinyin: An Xi Xiang

Scientific name: Styrax tonkinensis (Pierre) Craib ex Hart

Classification: This product is white blooms plant Styracaceae

Medicinal parts: dried resin

Main origin: the distribution of Indonesia's Sumatra and Java

Harvesting and processing: harvesting: trunk damage by natural or split the trunk in summer and autumn collection out of the resin

Processing: dried

Chemical Composition: Sumatra benzoin resin containing about 90%, the main component of Sumatra resin acids (Sumaresinolic acid) and cinnamic acid ester pine (Coniferyl cinnamate, Lubanyl cinnamate). Also contains cinnamic acid benzene-propyl (Phenylpropyl cinnamate) 2 ~ 3%, vanilla aldehyde (Va-nillin) 1%, cinnamon and a small amount of cinnamic acid ester (Cinnamyl cinnamate)

Tropism of taste: acrid, bitter, flat. Heart, spleen

Function: resuscitation clear God, qi and blood circulation, pain relief
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Indications: For stroke sputum Jue, Jue qi violence, the evil coma, confidants pain, post-natal blood halo, convulsion