Four known compounds, 5-Hydroxyflavone (1), 2’-Hydroxyflavanone (2), Paeonol (3) and bergenin (4), were isolated from the methanolic extract of the stem bark of Garcinia malaccensis for the first time through combination of vacuum and radial chromatography techniques. The structures of the secondary metabolites (1-4) were elucidated on the basis of their spectroscopic evidence and comparison wi...

Introduction and Aim: Tuberculosis (TB) is a global health concern, claiming two million lives every year. Although an oldest known human infectious disease, researcher falling short of giving out effective reliable vaccine or therapy. The current antimycobacterial drugs include Isoniazid, Ethambutol, Rifampicin Pyrazinemamide available in market, but most these are to have certain adverse effe...

The antioxidant, anti-α-glucosidase and anticholinesterase activity of the leaves and rhizomatous extract of Bergenia cordifolia were investigated. The rhizomes extract that showed a higher degree of 1,1-diphenyl-2-picrylhydrazyl radical scavenging and anti-α-glucosidase activity than reference compounds (rutin and acarbose respectively) were subjected to phytochemical analysis. The study revea...

The stem barks of Mallotus leucodermis Hook F. (Euphorbiaceae) was studied for its chemical constituents. The air dried and pulverized of stem bark of M. leucodermis (1.3 kg) was extracted successively with acetone for three days at room temperature yielding 66.0 g of crude extract. The crude extract was fractionated using vacuum liquid chromatography (VLC) to afford six fractions. Fraction 6 w...