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Pharmacologia Vol. 8 (3), 2017
Research Article
Pharmacognostic Standardization of Wedelia chinensis Merrill Leaf
Kundan Singh Bora and Ankita Pant
 
Abstract: Background and Objectives: Wedelia chinensis (family: Asteraceae), commonly known as Pilabhangra has been traditionally used for the treatment of various ailments like jaundice, cholagogue, diarrhoea, cephalalgia and respiratory disorders to reduce the mental tension and anxiety. Despite a long history of uses, no scientific pharmacognostic evaluation has ever been carried out on this plant, hence the objective of study was to investigate pharmacognostic studies and physico-chemical analysis of Wedelia chinensis (W. chinensis) leaf. Methodology: Transverse sections of W. chinensis leaf under the microscope showed scattered vascular bundles, various types of multicellular covering trichome and occasional glandular trichome etc. The powdered drug under the microscope showed various types of multicellular covering and occasional glandular trichomes, uniseriate (collapsed) covering trichome, paracytic stomata, xylem vessels etc. Results: Phytochemical screening showed presence of mainly phenolic, flavonoids, saponins and tannin compounds in hydroalcoholic extract of W. chinensis. In physico-chemical analysis, ethanol and water soluble extractive value were estimated to be 2, 7.4, 2.75 and 4.25%, respectively. Moisture content of air dried leaves of W. chinensis was found to be 8.25%. The total ash, acid insoluble ash, water soluble ash and sulphated ash was estimated to be 14.66, 1.32, 9.79 and 7.18%, respectively. Conclusion: The standardization parameters evaluated in the present study would provide a way for the standardization of raw materials and formulation of herbal origin. Further, the findings of the present investigations could also serve in the correct identification and preparation of a monograph on this plant.
 
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