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  • Title: Validated high performance thin layer chromatographic method for simultaneous quantification of major iridoids in Vitex trifolia and their antioxidant studies.
    Author: Tiwari N, Luqman S, Masood N, Gupta MM.
    Journal: J Pharm Biomed Anal; 2012 Mar 05; 61():207-14. PubMed ID: 22226914.
    Abstract:
    Negundoside (1), agnuside (2) and 6'-p-hydroxy benzoyl mussaenosidic acid (3) are known bioactive metabolites in Vitex trifolia. In the present study a simple precise and reproducible method was developed for simultaneous quantitation of NS (1), AS (2) and HMA (3) and the antioxidant capacity of above markers has also been determined. Marker compounds have been resolved using silica gel 60 F(254) plates, petroleum ether (60-80)/toluene/acetone/water (10:10:80:2 v/v/v/v) as the mobile phases. The method does not employ any derivatisation procedure and can be used as a quality control tool for routine analysis of drugs V. trifolia and V. negundo together with their commercial extracts. NS (1), AS (2) and HMA (3) showed significant activity in DPPH and NO radical scavenging assays.
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