Bacterial cellulose has a variety of applications both in the paper, textile, food, cosmetic and medicine industries; This is due to its excellent physicochemical properties such as: high degree of purity, high crystallinity, excellent biodegradability, high Young's modulus, high water retention capacity and excellent biological affinity. The objective of this work was to evaluate cellulose production by bacteria isolated from sugarcane. The collected samples were allowed to ferment until the appearance of a thick film on the surface, from which axenic cultures were obtained on the HS medium. Isolated cultures were transferred to HS brothand incubated under static conditions until a film formed on the culture surface. Bacterial identification was carried out based on a physiological characterization of the isolated strains and their capacity to produce cellulose. FT-IR analysis of the fi...

El cianuro es una sustancia química que se utiliza en el ámbito industrial y minero. No obstante, también es considerado un toxico potencialmente letal. El cianuro es potente inhibidor del metabolismo celular y uno de los gases que contamina el ambiente atmosférico. La mayoría de tratamientos fisicoquímicos empleados para mitigar los efluentes cianurados son caros y/o insuficientes, por esta razón la utilización de microorganismos capaces de biodegradar el cianuro es una buena alternativa por los bajos costos operativos y alta eficiencia que presenta. El objetivo de este trabajo fue evaluar la capacidad biodegradativa de cianuro por bacterias alcalófilas. Se recolectaron 7 muestras de relave procedentes de la Planta Concentradora Mesapata (Cátac – Ancash). Se lograron aislar 25 cepas de las cuales tres (P-CIAN 2, P-NUT 1 y P-KING 2), obtuvieron los mejores rendimientos en las...