Resumen
Objetivo: Evaluar la efectividad antioxidante de los metabolitos secundarios de Streptomyces spp. aislados de suelos del vertedero de Imperatriz. Métodos: Se recolectaron muestras de suelo, de las cuales se aislaron, purificaron e identificaron cepas de Streptomyces. Después de este paso, se obtuvieron extractos orgánicos que contenían metabolitos secundarios para evaluar la actividad biológica. Las pruebas para evaluar la actividad antioxidante de los extractos aislados de Streptomyces se realizaron mediante la eliminación del radical libre 2,2-difenil-1-picrilhidrazilo (DPPH). Resultados: Se identificaron Streptomyces mediante la evaluación de las características macromorfológicas, incluyendo el color, la textura y la dureza de las colonias. Se aislaron dos microorganismos del mismo género, que presentaban relieves, halos blanquecinos y la producción de un pigmento amarillo quemado. Microscópicamente, se observaron cadenas de esporas espirales e hifas cortas. Las pruebas utilizadas durante la investigación arrojaron resultados positivos, que oscilaron entre el 40% y el 90%, lo que demuestra su significativa capacidad para neutralizar el radical libre DPPH. Conclusión: Los resultados de los estudios confirmaron la presencia de actividad antioxidante en los metabolitos secundarios extraídos de los actinomicetos aislados del vertedero.
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