POTENCIAL ANTIBACTERIANO DOS ÓLEOS ESSENCIAIS DE MELALEUCA ALTERNIFOLIA, MENTHA PIPERITA E ROSMARINUS OFFICINALIS EM ISOLADOS DE STAPHYLOCOCCUS PSEUDINTERMEDIUS
DOI:
https://doi.org/10.35172/rvz.2025.v32.1693Palavras-chave:
Piodermite canina; Resistência bacteriana; MRSP; Concentração inibitória mínima; Tea tree.Resumo
Staphylococcus pseudintermedius é o principal agente oportunista relacionado à piodermite canina, compondo a microbiota natural dos folículos pilosos. É considerado a principal causa do uso de antibióticos em pequenos animais. Relatos de Staphylococcus pseudintermedius resistente à meticilina (MRSP) têm se tornado frequentes na rotina clínica veterinária de pequenos animais. Óleos essenciais (OEs) têm sido estudados e se tornam uma alternativa terapêutica. A atividade antibacteriana in vitro dos óleos essenciais de Melaleuca alternifolia, Mentha piperita e Rosmarinus officinalis contra isolados de MRSP e Staphylococcus pseudintermedius suscetível à meticilina (MSSP) foi avaliada. Os ensaios foram realizados utilizando o método de microdiluição em caldo com o objetivo de determinar a concentração inibitória mínima (CIM). Diferentes concentrações dos óleos essenciais foram utilizadas (31,25 a 64.000 μg/ml). Os valores da CIM dos óleos essenciais de M. alternifolia, M. piperita e R. officinalis contra o isolado de MRSP foram 10.667, 32.000 e 42.666 μg/ml, respectivamente. M. piperita (OEMP) apresentou o menor valor de CIM (5.333 μg/ml) e o óleo essencial de M. alternifolia (OEMA) apresentou o maior valor de CIM (37.333 μg/ml) contra MSSP. Portanto, com a atividade antibacteriana in vitro, os OEs podem ser considerados alternativas para tratamento em infecções ocasionadas por S. pseudintermedius.
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