Contribution to the study of polyphenolic compounds of four biologically active plant species

Abstract

Qualitative, quantitative and anti-bacterial activity analysis of flavonoids of 20 plant species of Islamabad and its surroundings were carried olit. On the basis of results obtained after these analysis the plant species namely Rumex chalepensis and Indigo/era hebepetala were selected for detailed study of their flavonoid contents. In addition, to the two plant species cited above, another two species belo!lging to the same genera i,e. Rumex nepalensis and Indigo/era cassioides were also selected for similar studies. Apart from the chapter on the methodology used during the course of this study the present dissertation is further divited into three chapters. The first is devoted to the isolation and structural elucidation of flavonoids and related compounds from the leaves of R. chalepensis and R. nepalensis, whereas the second chapter deals with the similar work done on 1. hebepetala (flowers and leaves) and leaves of 1. cassioides. In the course of these studies a total of 6 new and 13 known/rare compounds were isolated and identified from the following four plant species under investigation: