Revista de Chimie, (2013), 64(8), pp. 785 to 790 KINETIC STUDIES OF SOME BIOLOGICAL ACTIVE EXTRACTS WITH ANTIOXIDANT PROPERTIES Mihaela Pascu (Neagu), Daniela – Elena Pascu, Gina Alina Trăistaru, Andrei A. Bunaciu, C. Trisca – Rusu and Aurelia Cristina Nechifor