Buscar
Mostrando ítems 21-30 de 120
Artículo
Predicting extra virgin olive oil freshness during storage by fluorescence spectroscopy
(CSIC, 2017)
Virgin olive oil quality relates to flavor and unique health benefits. Some of these properties are at the most desirable level when the oil is just extracted, since it is not a product that improves with age. On ...
Artículo
Lichens as biomonitors for the determination of polycyclic aromatic hydrocarbons (PAHs) in Caracas Valley, Venezuela
(Taylor & Francis, 2011)
Biomonitoring of PAH air pollution using lichens was carried out. Sixteen PAHs were studied in 11 locations along the valley of Caracas (Venezuela). The results of this work indicate that 14 of the 16 analysed PAHs were ...
Artículo
Effect of regulated deficit irrigation on quality parameters, carotenoids and phenolics of diverse tomato varieties (Solanum lycopersicum L.)
(Elsevier, 2017)
This study aims to evaluate the effects of regulated deficit irrigation (RDI) and of cluster position (CI: first and second cluster; CII: third and fourth cluster; CIII: fifth and sixth cluster) on fruit quality parameters, ...
Artículo
A New Microchip Design. A Versatile Combination of Electromembrane Extraction and Liquid-Phase Microextraction in a Single Chip Device
(American Chemical Society, 2018-08-09)
For thefirst time, a novel and versatile microfluidic device wasdeveloped to achieve the possibility of combining different extraction principlesusing a miniaturized approach for the extraction of different classes of ...
Artículo
Foam Mat Drying of Tommy Atkins Mango: Effects of Air Temperature and Concentrations of Soy Lecithin and Carboxymethylcellulose on Carotenoid Compounds and Colorimetric Parameters
(United Scientific Group, 2020)
Mango is an important tropical fruit and a source of bioactive compounds. In this work foam mat drying was used for Tommy Atkins mango pulp. The effects of concentration of the foam stabilizers soy lecithin (L) and ...
Artículo
Resolución de casos prácticos en pequeños grupos en la enseñanza de la asignatura “química general y analítica” del grado en farmacia
(Universidad de Granada, 2010)
El Proyecto realizado por el equipo docente del Departamento de Química Analítica de la Facultad de Farmacia de Sevilla, ha utilizado la técnica de enseñanza en pequeños grupos (EPG) que constituye una faceta esencial en ...
Artículo
Porous Titanium Cylinders Obtained by the Freeze-Casting Technique: Influence of Process Parameters on Porosity and Mechanical Behavior
(MDPI, 2020)
The discrepancy between the stiffness of commercially pure titanium and cortical bone tissue compromises its success as a biomaterial. The use of porous titanium has been widely studied, however, it is still challengi ...
Artículo
Desarrollo de líneas experimentales para su aplicación en los Trabajos de Fin de Grado en Química
(Universitat de València: Centre de Formació i Qualitat "Manuel Sanchis Guarner", 2012)
Desde el punto de vista académico, los Trabajos Fin de Grado en Ciencias Químicas se presentan como proyectos experimentales relacionados con problemas reales, orientados a progresar en conocimientos y fortalecer competencias ...
Artículo
Antioxidant Potential of White Grape Pomaces: Phenolic Composition and Antioxidant Capacity Measured by Spectrophotometric and Cyclic Voltammetry Methods
(Elsevier, 2014)
Antioxidant potential of white grape pomaces from nine different varieties has been evaluated and compared to Zalema variety. The detailed phenolic composition was measured by RRLC/MS, the total phenolic content (TPC) by ...
Artículo
A Practical Example on Uncertainty Evaluation: Spectrophotometric Determination of pKa
(ARC Journals, 2018)
A practical example, focused on the evaluation of uncertainty and its propagation in spectrophotometric determination of ionization constants, is proposed in this work. The Hildebrand - Reilley method has been used in ...