Open AccessPharmacognostical, Physicochemical and Preliminary Phytochemical Standardization of Aerial Parts of Onosma bracteatum Wall
Author(s) -
Vandana G. Patel,
K G Patel,
Kirti Patel,
Tejal Gandhi
Publication year - 2017
Publication title -
international journal of pharmacognosy and phytochemical research
Language(s) - English
Resource type - Journals
ISSN - 0975-4873
DOI - 10.25258/phyto.v9i6.8175
Subject(s) - phytochemical , mucilage , boraginaceae , crude drug , chromatography , chemistry , traditional medicine , botany , biology , medicine
Objective: The present study was undertaken to develop the standardization parameters of powdered aerial parts of Onosmabracteatum Wall, family Boraginaceae.Methods: Different parameters such as pharmacognostical, physicochemical, preliminary phytochemical evaluation alongwith thin layer chromatography for identification of phytoconstituents were studied.Results: On microscopical examination of the aerial parts it showed the presence of oval to polygonal thin walled straightepidermal cells; spiral vessels, a few fibres elongated with blunt tips, long warty, tubercle based unicellular hairs andparacytic stomata. On physicochemical evaluation it was found to contain more amount of polar constituents as the ethanolextractive value was found to be more. Total ash value and acid insoluble ash indicated the presence of inorganic acids andsilicaceous matter respectively. Foaming index and swelling index were indicative of saponins and mucilaginous matterpresent in the aerial parts. On preliminary phytochemical screening and thin layer chromatographic studies it revealed thepresence of saponins, flavonoids, phenolic compounds and mucilage.Conclusion: The present work carried out can serve as a purpose for identification, authentication and standardization ofthe crude drug.