1. Division of Ethnopharmacology, Entomology Research Institute, Loyola College, Chennai-600034, Tamil Nadu, India
2. Xavier Research Foundation, St Xavier's College, Palayamkottai - 627002, Tamil Nadu, India
3. Department of Botany and Microbiology, College of Sciences, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia