Browsing Articles publicats (Química) by Title
Now showing items 91-110 of 258
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Early-life exposome and lung function in children in Europe: an analysis of data from the longitudinal, population-based HELIX cohort
(Elsevier, 2019-02-06)Background: Several single-exposure studies have documented possible effects of environmental factors on lung function, but none has relied on an exposome approach. We aimed to evaluate the association between a broad range ... -
Eating quality and health-promoting properties of two sweet cherry (Prunus avium L.) cultivars stored in passive modified atmosphere
(SAGE Publications, 2015)Two sweet cherry cultivars ('New Star' and 'Sweet Heart') were chosen to explore the impact of passive modified atmosphere packaging on the eating quality and health-promoting properties of fruit. Packaged and unpackaged ... -
Eating quality of 'Fuji' apples affected by a period of cold air after ULO storage.
(John Wiley & Sons, 2012-02-00)Over two subsequent seasons, emission of volatile compounds, consumer acceptability and quality parameters were analyzed in “Fuji” apples. In both seasons, apples were harvested at the same maturity stage and stored for ... -
Editorial: Physiological, Molecular and Genetic Perspectives of Chilling Tolerance in Horticultural Crops
(Frontiers Media, 2020-12-10)Horticultural crops have high economic, and enrich our lives through their aesthetic and nutritional value. Many horticultural species originate from tropical regions and are sensitive to cold at every stage of their ... -
Efecto de la amputación de antenas en machos y hembras, de la presencia de planta y de la concentración de feromona en el apareamiento de Sesamia nonagrioides Lef.
(Espanya. Ministerio de Medio Ambiente y Medio Rural y Marino, 1998)Se ha estudiado en laboratorio algunos de los factores que pueden influir en el apareamiento de los individuos de Sesamia nonagrioides Let'., como son la presencia de antenas en los individuos de ambos sexos, la presencia ... -
Effect of controlled atmospheres and shelf life period on concentrations of volatile substances released by 'Pink Lady' apples and on consumer acceptance
(Society of Chemical Industry; John Wiley & Sons, 2009)ACKGROUND: ‘Pink Lady®’ (Malus × domestica Borkh.) apples were harvested at commercial maturity and stored at 1 °C under either air or controlled atmosphere (CA) conditions (2.5 kPa O2: 3 kPa CO2 and 1 kPa O2: 2 kPa CO2) ... -
Effect of enzymatic treatments on dietary fruit fibre properties
(Taylor & Francis, 2017-04-23)Here we studied the modification of fibres derived from the fruit juice industry to prepare new value-added ingredients. These by-products are usually composted or used as animal feed. In this regard, fibres from apple, ... -
Effect of four novel bio-based DES (Deep Eutectic Solvents) on hardwood fractionation
(MDPI, 2020)Using the basic principle of construction between a hydrogen bond acceptor (HBA) and a hydrogen bond donor (HBD), four bio-based deep eutectic solvents (DESs) were prepared in a 1:2 molar ratio of HBA:HBD. 2,3-Dihydroxyp ... -
Effect of fungal mycelia on the HPLC–UV and UV–vis spectrophotometric assessment of mycelium-bound epoxide hydrolase using glycidyl phenyl ether
(Elsevier, 2016)The use of mycelia as biocatalysts has technical and economic advantages. However, there are several difficulties in obtaining accurate results in mycelium-catalysed reactions. Firstly, sample extraction, indispensable ... -
Effect of polymer coating composition on the aggregation rates of Ag nanoparticles in NaCl solutions and seawaters
(Elsevier, 2018-08-01)The aggregation behaviour of polymer-coated silver nanoparticles (AgNPs) was characterized in NaCl solutions, and in two seawaters of different salinities and dissolved organic matter (DOM) contents. Representative organic ... -
Effect of the flexibility and the anion in the structural and transport properties of ethyl-methyl-imidazolium ionic liquids
(Elsevier, 2007)This work summarizes some results obtained through equilibrium molecular dynamic simulations regarding the structure and transport properties of several ionic liquids (ILs). The Green–Kubo relationships were employed to ... -
Effective affinity distribution for the binding of metal Ions to a generic fulvic acid in natural waters
(American Chemical Society, 2009)The effective distribution of affinities (Conditional Affinity Spectrum, CAS) seen by ametal ion bindingto a humic substance under natural water conditions is derived and discussed within the NICA-Donnan model. Analytical ... -
Effects of a mixture of ligands on metal accumulation in diffusive gradients in thin films (DGT)
(CSIRO Publishing, 2018)Natural waters contain mixtures of ligands, which collectively affect the availability of trace metals. The individual contribution of each complex to the overall metal flux received by a sensor can be described in terms ... -
Electrostatic and specific binding to macromolecular ligands: a general analytical expression for the Donnan volume
(Elsevier, 2007)The dependence of the apparent acid dissociation constant of charged polyacids on the ionic strength and on the degree of dissociation is analysed in terms of the Donnan model. We introduce a new approximate analytical ... -
Electrostatic Effects in Biosorption. The Role of the Electrochemistry
(Sociedade Portuguesa de Electroquímica, 2007)Biosorption is the passive sequestration of pollutants by non-metabolizing non-living biomass. The technique emerged in 1980's as a possible alternative method for wastewater treatments in an environmentally friendly manner. ... -
Elongation of the Hydrophobic Chain as a Molecular Switch:Discovery of Capsaicin Derivatives and Endogenous Lipids as Potent Transient Receptor Potential Vanilloid Channel 2 Antagonists
(American Chemical Society, 2018-09-03)The transient receptor potential vanilloid type-2 (TRPV2) protein is a nonselective Ca2+ permeable channel member of the TRPV subfamily, still considered an orphan TRP channel due to the scarcity of available selective and ... -
Entirely solvent-free biocatalytic synthesis of solketal fatty esters from soybean seeds
(Académie des SciencesElsevier, 2016)Solvent-free reactions are the systems of choice in green chemistry. In addition to contributing to lowering the environmental impact of chemical processes, solvent-free systems can reduce production costs, reaction times, ... -
Entrapment in polymeric material of resting cells of Aspergillus flavus with lipase activity. Application to the synthesis of ethyl laurate
(Royal Society of Chemistry, 2014)The lipase activity of resting cells of Aspergillus flavus was improved by entrapment in various polymeric acrylates (PAAFs). Commercially available ethyl acrylate, butyl acrylate and ethyl methacrylate, and acrylates ... -
Envasado de cerezas 'Sweet Heart' en atmósfera modificada: calidad y compuestos bioactivos
(Interempresas Media, 2013)Para evitar el rápido deterioro de las cerezas en la fase poscosecha es conveniente aplicar tratamientos que frenen la maduración del fruto, y, en consecuencia, que ayuden a mantener su calidad y contenido en compuestos ... -
Esterification of oleic acid catalayzed by an Aspergillus niger strain. Influence of water activity and alcohol concentration
(Facultad de Ciencias de la Universidad del Tolima, 2006)Effects of water activity and 1-propanol concentration on synthesis of propyl oleate from oleic acid using Aspergillus niger cell-bound lipases in isooctane are described. A. niger produces lipases (EC 3.1.1.3) which partly ...