Browsing by Author "Abril Novillo, Andrea Soledad"

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Correction to: Validation of a method of broth microdilution for the determination of antibacterial activity of essential oils
(2022) Vanegas Jácome, David Enrique; León Tamariz, Fabián; Calle Lopez, Jessica Priscila; Wilches Arizábala, Isabel María; Cuzco Quizhpi, Nancy Mirian; Peñaherrera Wilches, María Eugenia; Jerves Andrade, María de Lourdes; Khachatryan , Aleksandr; Abril Novillo, Andrea Soledad
Following the publication of the original article [1] we were informed that the authors’ given and family names had unfortunately been interchanged. The author names have been corrected in the author list of this Correction and updated in the original article.
Evaluación de la calidad del agua de los ríos de la ciudad de Cuenca, Ecuador
(2019) Abril Novillo, Andrea Soledad; Pauta Calle, Gladys Guillermina; Rivera Ochoa, Carlos Santiago; Morales Matute, Oscar Patricio; Velasco Heras, María Eugenia; Gutiérrez Sarmiento, Daniela Liliana; Vázquez Guillen, Gabriela Belén
The water quality of the Tarqui, Yanuncay, Machángara and Tomebamba rivers, tributaries of the Paute river was evaluated. Due to the need to incorporate new approaches in the water quality monitoring, this study applied the widely known water quality index (WQI) but, instead of using the 9 parameters originally required by the method, we used 18 physicochemical and microbiological parameters. For each river, nine monitoring campaigns were carried out, covering representative hydrological periods and measuring flow discharges. The results show that, in general, in the areas of river catchment, the water resource is suitable for almost all types of use, but gradually, as it progresses downstream, the quality decreases due to sanitary or industrial wastewater and to natural factors such as runoff or erosion sediments. The most critical condition of the evaluated river’s water quality was presented during drought conditions, mainly due to the decrease in dissolved oxygen and the increase in temperature, salinity, organic matter and coliform bacteria. On the other hand, during rainy periods, parameters indicating a decrease of water quality were color, turbidity, and nutrient content such as phosphorus and nitrogen. In general, rivers have better quality for medium flow conditions, which prevail during most of the year. The present results were analyzed in accordance with the quality objectives established in previous studies, allowing a qualitative evaluation of the wastewater interception and treatment system of the city of Cuenca, Ecuador.
Validación de la metódica para el análisis de fracciones de extractos vegetales con actividad antibacteriana
(2012) Abril Novillo, Andrea Soledad; Calle López, Jéssica Priscila; León Tamariz, Fabián