Iron chelating-mediated antioxidant activity of Plectranthus barbatus extract on mitochondria - Maioli, Marcos A.; Alves, Larissa C.; Campanini, André L.; Lima, Michele C.; Dorta, Daniel Junqueira; Groppo, Milton; Cavalheiro, Alberto J.; Curti, Carlos; Mingatto, Fábio E. (Food Chemistry, 2010)