Pharmacognostic and Phytochemical Studies of Bark of Oroxylum indicum

Preliminary phamacognostic studies were carried out on the bark including morphological, microscopical, physicochemical studies alongwith phytochemical screening. The protocol followed for elucidating physicochemical properties were as per WHO guidelines. The successive extraction of plant bark was undertaken by using various solvents of increasing polarity and the extracts thus obtained were subjected for phytochemical analysis, followed by thin layer chromatographic examination by optimizing the solvent systems. The phytochemical investigation revealed the presence of alkaloids, glycosides, flavonoids, and phenolic compounds mainly. These preliminary data may be helpful in developing the standardization parameters of Oroxylum indicum bark.