1. Introdução -Histórico sobre plantas medicinais 1 acids and two abietane diterpenoids (8β-hydroxy-9(11),13-abietadien-12-one and ferruginol). The antioxidant potential was evaluated using the following methods: DPPH and ABTS radical scavenging, iron reducing ability, iron chelating activity and ORAC (Oxygen Radical Absorbance Capacity). The ethyl acetate phase was the most promising in all assays, EC50 of 16.73 µg mL -1 for DPPH, 5.18 µg mL -1 for ABTS, 44.75 µg mL -1 for iron chelating, 5.35 µg mL -1 for iron reducing and 0.81 µg mL -1 for ORAC. For the antimicrobial assay was used the broth microdilution method with Pseudomonas aeruginosa, Escherichia coli and Bacillus subtilis. The hexane phase was the most promising against B. subtilis (MIC50 8.87 µg mL -1 ). Sugiol and horminone also had activity against B. subtillis, MIC50 190.92 and 81.97 μM, respectively. A colorimetric assay kit produced by Roche was used to evaluate the anti-HIV potential, being the hydromethanolic phase the most promising among all phases, presenting MIC50 of 230 µg mL -1 . Abedini, A.; Roumy, V.; Mahieux, S.; Biabiany, M.; Standaert-Vitse, A.; Rivière, C.; Sahpaz, S.; Bailleul, F.; Neut, C.; Hennebelle, T. 2013. Rosmarinic acid and its methyl ester as antimicrobial components of the hydromethanolic extract of Hyptis atrorubens Poit. (Lamiaceae). Evidence-Based Complementary and Alternative Medicine. Abram, M.E.; Ferris, A.L.; Shao, W.; Alvord, W.G.; Hughes, S.H. 2010. Nature, position, and frequency of mutations made in single cycle of HIV-1 replication. Journal of Virology 84 (19): 9864-9878. Adamson, C.S. 2012. Protease-Mediated maturation of HIV: Inhibitors of protease and the maturation process. Molecular Biology International 2012: 13p. Adjanohoun, E.; Ahyi, M.R.A.. Aké, A.L.; Akpagana, K.; Chibon, P.; El-Hadj, A.; Eymen, I.; Goutote, E.; Ginko, S.; Hodouto, K.K.; Hougnon, P.; Kita, A.; Kéoula, Y.; Klouga-Ocloo, W.P.; Lo, I.; Siamevi, K.; Taffame, K.K.; Garba, M.; Gassita, J.N.; Gbeassor, M. 1986. Médecine traditionnelle et Pharmacopée: Contribution aux études ethno-botaniques et floristiques du Togo. ACCT. Paris, p. 671. Agra, M.F.; Silva, K.N.; Basílio, I.J.L.D.; Freitas, P.F.; Barbosa-Filho, J.M. 2008. Survey of medicinal plants used in the region Northeast of Brazil. Revista Brasileira de Farmacognosia 18 (3): 472-508. Almeida, M.Z. 2011. Plantas Medicinais. 3ed. EDUFBA. Bahia. Almtorp, G.T.; Hazell, A.C.; Torssell, K.B.G. 1991. A lignan and pyrone and other constituents from Hyptis capitata. Phytochemistry 30 (8): 2753-6 Alves, L.F. 2013. Produção de Fitoterápicos no Brasil: História, Problemas e Perspectivas. Revista Virtual de Química 5 (3): 450-513. Andrade, A.M.; Oliveira, J.P.R.; Santos, A.L.L.M.; Franco, C.R.P.; Antoniolli, A.R.; Estevam, C.S.; Thomazzi, S.M. 2010. Preliminary study on the anti-inflammatory and antioxidant activities of the leave extract of Hyptis fruticosa Salzm. ex Benth., Lamiaceae. Revista Brasileira de Farmacognosia 20 (6): 962-968. Antolovich, M.; Prenzler, P.D.; Patsalides, E.; McDonald, S.; R...