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Browsing by Author "Tresierra Ayala, Álvaro Benjamín"

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    Degradación del poliestireno expandido solubilizado con aceite esencial de cáscara de naranja (Citrus sinensis) Empleando Pseudomonas aeruginosa
    (Universidad Científica del Perú, 2024-04-25) Pinto Alejos, Milagros del Pilar; Rengifo Gutiérrez, Yamile Milagros; Tresierra Ayala, Álvaro Benjamín; Donayre Ramírez, Marjorie Raquel
    Ante el incremento constante de los residuos plásticos en la ciudad de Iquitos, los cuales forman parte del gran volumen de los desechos que actualmente se pueden apreciar en las calles y botaderos; se efectuó la presente investigación con el objetivo de evaluar la degradación del poliestireno expandido solubilizado en aceite esencial de cáscara de naranja Citrus sinensis empleando Pseudomonas aeruginosa; considerando que su aplicación futura y en volúmenes mayores, pudiese minimizar los niveles de contaminación en la ciudad. A fin de lograr los objetivos propuestos se ha efectuado una investigación del tipo descriptivo – experimental, considerando como muestra de estudio 30 gramos de poliestireno expandido, los cuales se solubilizaron en 10 ml de aceite esencial de cáscara de naranja Citrus sinensis; obteniendo que el mejor tratamiento para la degradación de poliestireno expandido corresponde a la aplicación de 9x108 UFC de Pseudomonas aeruginosa a 0.1266 gramos de poliestireno expandido, solubilizado en aceite esencial de cáscara de naranja (Citrus sinensis), durante un periodo de 25 días; el cual obtuvo en promedio un porcentaje de degradación del 38.23%.
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    Isolation, Characterization, and Biotechnological Potential of Native Microalgae From the Peruvian Amazon
    (Universidad Científica del Perú, 2019-08-31) Cobos Ruiz, Marianela; Castro Gómez, Juan C.; Paredes Rodríguez, Jae D.; Pérez, Sheyla; Dylan Maddox, Joseph; Estela Moreno, Segundo L; Tresierra Ayala, Álvaro Benjamín; Saldaña Rojas, Juan R.; Marapara, Jorge L.; Adrianzén, Pedró M.; Gonzáles, Rosana
    The objective of this chapter is to provide scientific information on basic aspects to be taken into account to achieve the successful isolation, biochemical, and molecular characterization and then to evaluate the biotechnological potential of native microalgae of the Peruvian Amazon. Recent investigations reported by our research team has demonstrated that the isolated native microalgae from the Peruvian Amazon have a great potential for the biotechnological production of biodiesel and nutraceuticals. This biotechnological potential was identified thanks to the application of various protocols that were standardized by the authors over the last 5 years. In conclusion, the native microalgae of the Peruvian Amazon have biotechnological potential and are therefore promising for the production of both biodiesel and nutraceuticals. Various species of microalgae were identified, isolated, cultured, and characterized using biochemical, nutraceutical, and molecular techniques, the isolation stage being the starting point to achieve various biotechnological applications. Ankistrodesmus sp. is one of the microalgae with potential for the production of biodiesel and microalgae such as Haematococcus pluvialis, Scenedesmus sp., and Chlorella sp., among others demonstrated a high potential for nutraceutical production. The stress conditions to which microalgae are subjected are being a determining factor for the production of biodiesel and nutraceuticals.

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