Obtención de celulasas bacterianas usando residuos orgánicos generados en plazas de mercado
Bacterial cellulases obtention from organic wastes generated in marketplaces
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Esta obra está bajo una licencia internacional Creative Commons Atribución-NoComercial 4.0.
Esta obra está bajo una licencia internacional Creative Commons Atribución-NoComercial 4.0.
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Los residuos agrícolas son una fuente de celulosa que puede ser aprovechada para producir enzimas hidrolíticas, como las celulasas, mediante acción microbiana. Estas celulasas son utilizadas en procesos extractivos de biomoléculas, en la producción de biogás, en la industria textil, detergente, alimentaria y del papel. El propósito del estudio es la obtención de celulasas bacterianas utilizando residuos orgánicos, generados en plazas de mercado. Se realizaron dos medios de cultivo (A1 y A2), a partir de ameros de mazorca y cáscaras de leguminosas, ajustando el pH del medio A1 a 7,0 y el de A2 a 5,0. Los medios fueron fermentados por 75 horas, mediante la cepa bacteriana C6M2, aislada de residuos de plazas de mercado, monitoreando la actividad enzimática, la concentración de azúcares reductores y la celulosa residual. La máxima actividad celulolítica se logró a las 56 horas de fermentación en A1 y a las 32 horas, en A2. El extracto enzimático se precipitó, dializó y ultrafiltró, obteniendo una actividad final de 9,07 ± 0,48 U/mL. Los ameros y las cáscaras de leguminosa se pueden aprovechar como sustratos en la producción de celulasas, con posibles aplicaciones en procesos donde requieran bajos grados de pureza.
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