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Bol. latinoam. Caribe plantas med. aromát ; 11(4): 306-315, jul. 2012. tab, graf
Article in English | LILACS | ID: lil-648048

ABSTRACT

Context: Laurelia sempervirens (R. et P.) Tul., is an evergreen tree that growths in southern Chile, its leaves and bark are used in folk medicine as an infusion. Objective: The antimicrobial activities of the essential oil and ethyl acetate extract obtained from the bark of Laurelia sempervirens were investigated. Materials and methods: Ethyl acetate extract and essential oil were analyzed by GC- mass and the antimicrobial activity was investigated against gram positive and gram negative bacteria. Results: The extract and essential oil showed a strong antimicrobial activity against bacteria such as Acinetobacter baumanii, a relevant world nosocomial pathogen Discussion and conclusion: These findings demonstrate that the ethyl acetate extract and essential oil of L.sempervirens bark have excellent antimicrobial activities and thus have great potential as a source for natural health products.


Contexto: Laurelia sempervirens (R. et P.) Tul., es un árbol de hoja perenne que crece en el sur de Chile, sus hojas y corteza se utilizan en medicina popular como infusión. Objetivo: Investigar la actividad antimicrobiana del aceite esencial y el extracto de acetato de etilo obtenido de la corteza de Laurelia sempervirens. Materiales y métodos: El extracto de acetato de etilo y el aceite esencial se analizaron por GC-masa y la actividad antimicrobiana se analizó contra bacterias gram positivas y gram negativas. Resultados: El extracto y aceite esencial evidenció una fuerte actividad antimicrobiana frente a la bacteria, Acinetobacter baumanii patógeno que causa infecciones nosocomiales de relevancia mundial. Discusión y conclusiones: Estos hallazgos demuestran que el extracto de acetato de etilo y aceite esencial de corteza de L.sempervirens tienen excelentes actividades antimicrobianas y por lo tanto tienen un gran potencial como fuente de productos naturales para la salud.


Subject(s)
Anti-Infective Agents , Oils, Volatile/pharmacology , Bacteria , Plant Leaves/chemistry , Laurus/chemistry , Acetates , Acinetobacter baumannii , Chile , Chromatography , Plant Bark/chemistry , Plant Extracts/pharmacology
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