CHAPTER ONE
1.0 INTRODUCTION
Plant-derived substance has recently become of great interest owing to their versatile application. Medicinal plant are the riches bio-source of drugs and in traditional system of medicines, modern medicine, folk medicine, food supplement, pharmaceutical and chemical study for synthetic drugs. (Ncube et al., 2008). The term extraction is the separation of medicinally active portion of plant (and animal) tissue using selective solvents through standard procedure. The mixture of metabolites in solid or semisolid state.