Electron beam and gamma irradiation as feasible conservation technologies for wild Arenaria montana L.: effects on chemical and antioxidant parameters Running Title: Electron beam and gamma irradiation of Arenaria montana Eliana Pereira a,b , Lillian Barros a , João C.M. Barreira a,c , Ana Maria Carvalho a , Amilcar L. Antonio a,c , Isabel C.F.R. Ferreira a,* a Centro de Investigação de Montanha (CIMO), ESA, Instituto Politécnico de Bragança, Campus de Santa Apolónia, 1172, 5300-253 Bragança, Portugal. b GIP-USAL, Facultad de Farmacia, Universidad de Salamanca, Campus Miguel de Unamuno, 37007 Salamanca, Spain. c CTN, Campus Tecnológico e Nuclear, IST, Universidade de Lisboa, Estrada Nacional 10, 2686-953 Sacavém, Portugal d REQUIMTE/LAQV, , Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, no. 228, 4050-313 Porto, Portugal *Corresponding author. Tel.+351 273 303219; fax +351 273 325405. E-mail address: iferreira@ipb.pt (I.C.F.R. Ferreira)