Pericarpium Aurantii

The TLC plate is sprayed with freshly prepared solution and inspected in UV-363nni. The flavonoid glycosides and phenolcarboxylic acids (Aurantii pericarpium, Cynarae herba) show an orange, green or blue to blue-green fluorescence in UV-365 nm. 

F ig. 17A Aurantii pericarpium (2,3) and Citri pericarpium sample (5) are volatile oils squeezed from fresh peels. They contain a higher amount of limonene, seen a.s a grey-violet zone at the solvent front, than their. steam di.stillates (1,4). 

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. 

Citri, Aurantii pericarpium Orthosiphonis, Eriodktyonis folium... 

The higher amount of naringin, neohesperidin and hesperidin in Aurantii pericarpium (2) is seen as a broad yellow band directly above the violet-red eriocitrin. The R, value depression is caused by other plant products. 

Development of DCM extracts of Aurantii pericarpium (3) and Orthosiphonis folium (4) in system 2 yields a series of blue fluorescent aglycones (UV-365 nm). 

Chen Pi (Citri reticulatae pericarpium) and Zhi Ke (Aurantii fructus)... 

Hou Po (Magnoliae cortex), Chen Pi (Citri reticulatae pericarpium), Mu Xiang (Aucklandiae radix), Sha Ren (Amomi xanthioidis fructus), Zhi Shi (Aurantii fructus immaturus), Zhi Ke (Aurantii fructus) and Xiang Fu (Cyperi rhizoma)... 

Pericarpium citri reticulatae virde, Pericarpium citri reticulatae, Fructus aurantii, Fructus, aurantii, immaturus Naringin, naringenin, hesperidin, neohesperidin, tangeretin, synephrine ESI-MS, positive ion mode Ding et al., 2007... 

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