Aurantii and Citri pericarpium......................Fig

A mcthanolic extract of Aurantii pericarpium (10), developed in the polar solvent. system shows the blue fluorescent anthranilate and coumarin zones in the R, range 0.8-0.99. Additional blue and orange-yellow fluorescent zones of flavanon and flavanonol glycosides are seen at R, 0.05-0.25. (For separation of flavonoid glycosides, see Section 7.1.7, Fig. 23) The flavonoid zones of the Citri pericarp methanolic extract II are less prominent than those in extract 10. Tlie blue coumarin zones arc found at the solvent front. 

Reference T1 a-P-thujone = ((-)-thujone 35%, + )-thujone 65%) compound T2 cineole 

Detection V Vanillin-sulphuric acid reagent (VS No. 42) - vis P Phosphomolybdk add reagent (PMA No. 34) -4vis 

The essential oil con,stituents react with VS reagent as blue or violet-blue zones. Thujone 

Dalmatian sage oil (1,2) contains thujone (a) as major constituent with lower amounts of cineole (c), two terpene alcoholes (R, 0.2-0.4) and THC at the solvent front. 

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