Uso de plantas medicinais por adultos diabéticos e/ou hipertensos de uma unidade básica de saúde do município de Caucaia-CE, Brasil ARTIGO DE PESQUISA In vitro antimicrobial activity of Alpinia zerumbet and A. purpurata nonpolar fraction of leaf extract DOI 10.32712/2446-4775.2021.1037 Victorio, Cristiane Pimentel1*; Silva, Davi Oliveira e2; Alviano, Daniela S.3; Alviano, Celuta S.3; Kuster, Ricardo Machado4; Lage, Celso Luiz Salgueiro5. 1State University Center of the West Zone (UEZO), Sectorial Center of Biological and Health Sciences - CCBS. Avenida Manuel Caldeira de Alvarenga, 1203, Campo Grande, CEP 23070-200, Rio de Janeiro, RJ, Brazil. 2Federal University of Ouro Preto (UFOP), Department of Biodiversity, Evolution and Environment-DEBIO, Institute of Exact and Biological Sciences (ICEB), Morro do Cruzeiro campus, CEP 35400-000, Ouro Preto, MG, Brazil. 3Federal University of Rio de Janeiro (UFRJ), Paulo de Góes Institute of Microbiology, Av. Carlos Chagas Filho, s / n, CEP 21941-902, Rio de Janeiro-RJ, Brazil. 4Federal University of Espírito Santo (UFES), Department of Chemistry, Av. Fernando Ferrari, 514, Goiabeiras, CEP 29075-910, Vitória, ES, Brazil. 5National Institute of Industrial Property (INPI), DICOD - Academia. Praça Mauá 7, Sala 1012, Centro, CEP 20081-240, Rio de Janeiro, RJ, Brazil. *Correspondência:
[email protected]. Abstract This study aimed to evaluate the in vitro antimicrobial activity of fractions of leaf hydroalcoholic crude extracts: hexane, dichloromethane, ethyl acetate and butanolic of Alpinia zerumbet and A. purpurata by the agar drop diffusion method in order to screen the main compounds involved in antimicrobial activity. Leaves of A. zerumbet (Pers.) B.L.