Seperation of antibacterial constituents from five Solanum species using thin layer Chromatography

Plants are the natural medicinal resources. The presence of bioactive compounds and secondary metabolites determined the medicinal values of the plants. The medicinal property of the plant denoted the presence of active compounds in it. The presence of maximum numbers of active compounds exhibit high medicinal values. Solanum species are medicinal herbs used for the treatment of diverse ailments (diabetes, cholera, bronchitis, high blood pressure) and as laxatives. S. nigrum, S. torvum, S. trilobatum, S. surattense and S. melongena are important medicinal plants. Many other Solanum species are also used for medicinal purposes. The medicinal uses and antibacterial activity of the Solanum species are mainly due to the presence of bioactive constituents in the plants. Hence, the present study was focused to screen and separate the bioactive antibacterial constituents from the methanol extracts of leaves of five Solanum species, S. nigrum, S. torvum, S. trilobatum, S. surattense and S. melongena using Thin Layer Chromatography (TLC). The chromatogram was observed under visible light, UV (365), UV (265) and Iodine chamber. Maximum numbers of bands were observed in leaves extracts of S. surattense.