1. National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy; The University of Mississippi; University, MS 38677 USA
2. Office of Cosmetics and Colors, Center for Food Safety and Applied Nutrition; Food and Drug Administration; College Park MD 20740 USA
3. Division of Pharmacognosy, Department of BioMolecular Sciences, School of Pharmacy; The University of Mississippi; University, MS 38677 USA