Pharmacognostic and Preliminary Phytochemical Investigation of Clerodendrum thomsoniae Leaves

Clerodendrum thomsoniae (Lamiaceae) is an ornamental plant grown almost worldwide in humid environment. The phytocompounds present in plant protect the body from oxidative stress, brain disorders, skin rashes, sores and depression. Present study deals with to establish pharmacognostic, physiochemical and phytochemical standards of Clerodendrum thomsoniae leaves. Microscopical evaluation of Clerodendrum thomsoniae leaves showed the presence of covering trichomes, epidermis and other characteristics. Results of Clerodendrum thomsoniae leaves yielded 7.5% w/w total ash, alcohol extractive value not more than 23.33% w/w (Hot extraction), 21.66% w/w (Cold maceration) and water extractive value not more than 30.12% w/w (Hot extraction), 36.66% w/w (Cold maceration) and 8% w/w total moisture content by LOD. The Phytochemical investigation of extracts of Clerodendrum thomsoniae leaves shows the presence of sterols, triterpenes, alkaloids, flavonoids, tannins, glycosides, proteins and carbohydrate. Pharmacognostical and phytochemical parameters determined in the present work can serve as major criteria for identity, quality and purity of a crude drug and extracts.