Wild edible plants as potential antioxidants in vegetables oils

The effect of the addition of fruits of Rosa canina and Quercus ballota and leaves of Sanguisorba minor to sunflower, seed, and olive oils on lipid oxidation during the frying process was analyzed.The three underutilised edible plants increased the oxidative stability of the sunflower oil, since the malondialdehyde (MDA) content was significantly decreased with respect to values of the control sunflower oil after the heating process. However, in olive oil, the effect of these edible plants on decreasing the lipid peroxidation was only evident for the highest concentration, while in seed oil the addition of the edible plant showed a prooxidant effect.Thus, these wild edible plants could be used to enrich vegetable oils with low content of natural antioxidant, such as sunflower oil, and avoid or decrease the use of synthetic antioxidant

Wild edible plants as potential antioxidant or nutritional supplements for beverages minimally processed

Wild edible plants (WEP) with high antioxidant capacity, Rosa canina fruits, Quercus ballota acorns and Sanguisorba minor (young leaves and stems), were added to orange and kiwifruit juices for increase the nutritional properties. The addition of WEP to orange juice (OJ) and kiwifruit cremogenate (KC) does not affect, or it can even improve, some parameters of consumer's acceptance, although the mixtures increasing sweetness and intensifying the matrix colour without changing the tone are the best valued. The beverages minimally processed with higher TSS were the matrices fortified with Q. ballota, the same that were considered sweetest by the judges. The addition of WEP to OJ did not significantly change the levels of vitamin C (ascorbic acid plus dehydroascorbic acid). The addition of R. canina and S. minor increased the content of phenolic compounds and antioxidant capacity in both matrices (OJ and KC) in more than 30%. Beverages with a high interest for consumers and with high antioxidant properties have been obtained

Iniciación a la estandarización del estudio imaginológico mediante resonancia magnética de la anatomía y los procesos patológicos de la extremidad equina

1150 p.El objetivo de esta tesis doctoral es establecer unos criterios de estandarización adecuados para la obtención, descripción e interpretación de las imágenes obtenidas mediante resonancia magnética y su posterior utilización en la exploración y diagnóstico de los procesos patológicos asentados en la extremidad equina. Para este estudio se han utilizado las imágenes obtenidas con un equipo de IRM de bajo campo magnético (0,2 T) de 47 extremidades diferentes de animales, de distintas edades y estados de salud, atendidos entre 1990 y 2008 en el Servicio Imaginológico de la Consulta Pública de la Facultad de Veterinaria de la Universidad de León. Los procesos patológicos valorados en este trabajo han sido: edema por decúbito, inflamación traumática de la piel, úlceras por decúbito, cicatrices epiteliales e infosura. Los resultados obtenidos ponen de manifiesto que las potenciaciones y variantes utilizadas son una alternativa sólida para la estandarización de la obtención de imágenes, cuya finalidad sea la exploración diagnóstica en la extremidad equina; que los parámetros utilizados en este estudio para disminuir la subjetividad de las descripción de las imágenes de RM cumplen con este cometido, aumentando la precisión y fiabilidad de las descripciones, tanto de la anatomía como de los procesos patológicos analizados; y que la utilización de T1 SE combinada con T2 FSTIR proporciona mayor información complementaria y menor información solapada, para el mismo corte, que el resto de combinaciones de potenciaciones y variantes de las misma

Nuclear data uncertainty quantification on PWR spent nuclear fuel as a function of burnup

Nuclear data uncertainty analysis on the spent nuclear fuel inventory was performed on the Takahama-3 NT3G23 assembly, where the sample SF95-4 was irradiated up to a burnup of approximately 36 GWd/ t according to the SFCOMPO benchmark. The cross-section covariance matrices stored in the ENDF/B-VIII.0, JEFF-3.3 and JENDL-4.0u evaluated nuclear data libraries were propagated with the stochastic sampling algorithms implemented in the SANDY code. A comparison of the concentration uncertainty differences obtained using data from the three libraries is reported. Similarities were found with the fuel composition uncertainty results obtained for the Calvert Cliffs MKP109 sample P SFCOMPO benchmark. Such a similarity was also found when comparing concentration uncertainties along the sample irradiation. Therefore, the main contributors to the concentration uncertainty of a number of nuclides were identified at different burnup levels in the two samples. To complement the similarity analysis, a correlation study of the concentration distributions predicted by the two models was performed. The reported results hint a dominance of the common uncertainty propagation mechanisms over the model differences in the determination of concentration uncertainty