Viburni cortex

Viburnl priinifolii cortex Black haw bark Viburnum priinifolium L. Caprifoliaceae Amentoflavone, bi-apigenin,. scopoletiii, hydroquinoiie (<0.5%) Adulterant Viburni opuli cortex... 

Fig. 26A Viburni cortex. The samples 1 and 2 show with KOI 1 reagent in tJV-365 nm seven to ten blue or greenish fluorescent zones distributed over the whole R( range.

The presence of the blue fluorescent scopoletin (R, 0.7/Tl) and the dark-green fluore.scent biflavonoid ainentoflavone (Rf 0.4/T2) is characteristic for Viburni prunifolii cortex (1). 

B With FBS reagent the Viburni cortex samples 1 and 2 develop four to six red-brown zones in the vis. Amentoflavone (T2) is a characteristic main red-brown zone in V. prunifolii cortex (I), while a high amount of catechin/epicatechin (R( 0.15/T3) characterizes Viburni opuli cortex (2). 

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