Gliptodonte: visiones a través del arte

Ésta exposición es el resultado de un proyecto investigativo y creativo liderado y financiado por el Instituto Universitario de Investigación en Arte y Tecnología de la Animación ATA de la Universidad de Salamanca, a partir de la interpretación libre y la mirada inquieta de un equipo de investigadores docentes de universidades españolas y extranjeras, de una fotografíaen blanco y negro del caparazón de un gliptodonte, tomada en el antiguo Museo Paleontológico de Valencia, España. Comprende noventa y tres serigrafías digitales de treinta y un artistas que a partir de trabajar con el método Roukes, el cual favoreció la estimulación del pensamiento creador, basado en los principios de la sinéctica aplicada a la creación artística, permitió generar unas propuestas conceptuales y gráficas muy diferentes en cada investigador. Al final el resultado fue una variedad de temas que iban desde lo figurativo hasta el más alto grado de abstracción de la imagen, desde lo poético a lo político y desde el realismo al expresionismo; para dar forma al proyecto se empleó la técnica de la serigrafía digital como propuesta para la creación artística. Gracias a la alianza entre la Universidad de Salamanca y la Corporación Escuela de Artes Institución Universitaria y Letras y con el apoyo de la Dirección de Museos y Patrimonio Cultural de la Universidad Nacional de Colombia se abre un espacio de intercambio académico y cultural que ha permitido traer a Colombia esta muestra artística

Encapsulation and controlled delivery systems based on molecular gates

[EN] Mesoporous silica particles (MSP) are structures of silicon dioxide arranged so that they are able to create pores between 2 and 50 nm. The high volume of pores and the internal surface of the MSP make them excellent supports for the encapsulation of bioactive molecules. In addition, the possibility of including molecules acting as molecular gate onto their outer surface allows the design of smart delivery systems. Gated-MSP show "zero release" of the encapsulated molecule, but after the application of a specific external stimulus, the cargo is released as a specific response to the stimulus. This article describes the features of the MSP used in the encapsulation of bioactive compounds, the most important molecular gates to create controlled release systems, as well as examples of application of MSP for the encapsulation and controlled release of food ingredients and nutraceuticals. These applications include the modulation of the bioaccessibility of food ingredients or nutraceuticals as well as the protection of their stability against external agents degradation. Palabras claveRuiz Rico, M.; Pérez-Esteve, É.; Fuentes López, A.; Barat Baviera, JM. (2018). Sistemas de encapsulación y liberación controlada basados en el uso de puertas moleculares. Nutrición Hospitalaria. 35(4):150-154. https://doi.org/10.20960/nh.2142S15015435

Use of impedance spectroscopy for predicting freshness of sea bream (Sparus aurata)

In the present study, the use of a rapid portable system based on impedance spectroscopy to assess fish freshness has been tested. The evolution of different physical and chemical parameters (moisture, fat, pH and TVBN) and impedance measurements (modulus and phase at different frequencies) of six different batches of sea bream (Sparus aurata) were analysed. Impedance spectroscopy was able to classify raw matter into six groups according to composition differences, and also to classify those samples stored for a time of between 0 and 15 days into different groups according to degree of freshness. TVB-N is one of the most usual parameters to assess shelf life periods of fish samples; the coefficient of determination (R2) of 0.72 obtained in the Partial Least Squares regression for this parameter confirmed the potential application of the impedance spectroscopy for predicting sea bream freshnessThe authors gratefully acknowledge financial support from the Spanish Government (Project AGL2010-20539). E.P. is grateful to the Spanish Ministry of Science and Innovation for his grant (AP2008-00620).Pérez-Esteve, É.; Fuentes López, A.; Grau Meló, R.; Fernández Segovia, I.; Masot Peris, R.; Alcañiz Fillol, M.; Barat Baviera, JM. (2014). Use of impedance spectroscopy for predicting freshness of sea bream (Sparus aurata). Food Control. 35(1):360-365. https://doi.org/10.1016/j.foodcont.2013.07.025S36036535

Eugenol and thymol immobilised on mesoporous silica-based material as an innovative antifungal system: Application in strawberry jam

[EN] Essential oils and their main compounds have been studied in-depth for their antifungal properties against a wide variety of microorganisms. However, the strong odour emitted by them, even at low concentrations, makes their incorporation into food matrices difficult. Immobilisation of antimicrobial compounds on solid surfaces could be a strategy to reduce their odour impact. The antifungal effectiveness of eugenol and thymol bioactive agents, free and immobilised on mesoporous silica microparticles (MCM-41 family), and their impact on the final aroma and fungal decay of strawberry jam, were evaluated herein. Free eugenol and thymol exhibited good antifungal properties against the fungi strains tested, and thymol proved more effective. The antifungal activity of immobilised eugenol and thymol displayed greater antifungal activity for immobilised eugenol. The jams prepared with immobilised eugenol on MCM-41 microparticles exhibited no mould and yeast development during the studied storage time. The sensory evaluation confirmed that eugenol and thymol immobilisation reduced their typical strong impact on strawberry jam flavour. This work demonstrates the promising use of immobilised eugenol on mesoporous silica microparticles to control strawberry jam decay. (C) 2017 Elsevier Ltd. All rights reserved.Authors gratefully acknowledge the financial support from MINECO-Spanish Government and FEDER-EU (Projects AGL2012-39597-C02-01, AGL2015-70235-C2-1-R and MAT2015-64139-C4-1) and the Generalitat Valencia (Project PROMETEOII/2014/047). Furthermore, author Susana Ribes is grateful to the Universitat Politecnica de Valencia (UPV) for her FPI grant.Ribes-Llop, S.; Pérez-Esteve, É.; Ruiz Rico, M.; Fuentes López, A.; Talens Oliag, P.; Martínez-Máñez, R.; Barat Baviera, JM. (2017). Eugenol and thymol immobilised on mesoporous silica-based material as an innovative antifungal system: Application in strawberry jam. Food Control. 81:181-188. https://doi.org/10.1016/j.foodcont.2017.06.006S1811888

Catálogo de las aves de la Región de Murcia (España)

La avifauna constituye uno de los componentes fundamentales y de mayor interés de conservación de la biodiversidad de la Región de Murcia (España). El catálogo que se presenta consta de un total de 339 especies agrupadas en 69 familias y 24 órdenes, de las cuales 78 se consideran principalmente invernantes, 51 migradoras, 41 estivales, 85 residentes, 82 ocasionales y 2 son exóticas naturalizadas. Para cada especie se describe sucintamente su estatus, abundancia y distribución en el territorio regional. Se aporta además un listado de 31 especies exóticas no naturalizadas. En comparación con el anterior catálogo de las aves murcianas, elaborado hace 30 años, el presente catálogo incorpora 71 nuevas especies, sin considerar las exóticas. Se discuten las posibles causas de este incremento, en el contexto de un escenario de cambio global, así como los cambios más significativos en la ornitofauna murciana. También se comentan los numerosos cambios producidos en relación con aspectos taxonómicos y la ordenación sistemática de especies

Programa de mejora de la calidad proyectos de innovación y mejora docente de la Universidad de Salamanca

Memoria ID-098. Ayudas de la Universidad de Salamanca para la innovación docente, curso 2013-2014

Dyslipidaemia in HIV-infected women on antiretroviral therapy. Analysis of 922 patients from the Spanish VACH cohort

Background: Information concerning lipid disturbances in HIV-infected women on antiretroviral therapy (ART) is scarce. The objective of the study is to describe the lipid profile in a large cohort of HIV-infected women on contemporary ART and analyse differences between regimes and patient's characteristics. Methods: Observational, multicentre, cross-sectional study from the Spanish VACH Cohort. 922 women on stable ART without lipid-lowering treatment were included. Results: Median age was 42 years, median CD4 lymphocyte count was 544 cells/mm3, and 85.6% presented undetectable HIV-1 viral load. Median total cholesterol (TC) was 189 mg/dL (interquartile range, IQR, 165-221), HDL cholesterol 53 mg/dL (IQR, 44-64), LDL cholesterol 108 mg/dL (IQR, 86-134), and triglycerides 116 mg/dL (IQR, 85-163). Mean accumulated time on ART was 116 months; 47.4% were on NNRTI-based regimes, 44.7% on PI, and 6.7% on only-NRTI therapy. 43.8% were also hepatitis C (HCV) coinfected. Patients on PI treatment presented higher TC/HDL ratio than those on NNRTI (p < 0.001). Significantly higher HDL values were observed in NNRTI-treated patients. HCV-coinfected patients presented lower TC/HDL ratio than the non HCV-coinfected. In multivariate analysis, factors independently associated with TC/HDL ratio were age, triglyceride levels and HCV co-infection. PI treatment presented a non-significant association with higher TC/HDL ratio. Conclusions: In HIV-infected women, the NNRTI-based ART is associated with a better lipid profile than the PI-based. Factors unrelated to ART selection may also exert an independent, significant influence on lipids; in particular, age, and triglyceride levels are associated with an increased TC/HDL ratio while HCV co-infection is associated with a reduced TC/HDL ratio

Modelado y digitalización de volúmenes por medio de escaneado 3D en grabado y dibujo

Memoria ID-0034. Ayudas de la Universidad de Salamanca para la innovación docente, curso 2017-2018

Enrichment of stirred yogurts with folic acid encapsulated in pH-responsive mesoporous silica particles: Bioaccessibility modulation and physico-chemical characterization

[EN] In this work, we have studied the ability of a mesoporous silica support loaded with folic acid and functionalized with amines (S1) to modulate the bioaccessibility of the vitamin after its incorporation in stirred yoghurts with different fat contents. Due to the novelty of using mesoporous silica supports in food matrixes, the influence of S1 addition on the physicochemical, rheological and lactic acid bacteria viability of these yoghurts during 21 days of refrigerated storage at 4 °C was also evaluated. The in vitro digestion procedure showed that S1 was capable of inhibiting the release of folic acid in acidic solution at pH 2 (stomach) and controllably release their contents in neutral pH (intestine), thereby modulating the bioaccessibility. Moreover, the physicochemical and microbiological assays revealed that enrichment generally does not alter the physicochemical properties (pH, colour, syneresis and rheology) of either type of yoghurt and does not cause any effect on lactic acid bacteria survival.Authors gratefully acknowledge the financial support from the Ministerio de Economia y Competitividad (Projects AGL2012-39597-C02-01, AGL2012-39597-C02-02 and MAT2012-38429-C04-01) and the Generalitat Valenciana (project PROMETEO/2009/016). E.P.E. and M.R.R. are grateful to the Ministerio de Ciencia e Innovacion for their grants (AP2008-00620, AP2010-4369). Electron Microscopy Service of the UPV is also acknowledged.Pérez-Esteve, É.; Ruiz Rico, M.; Fuentes López, A.; Marcos Martínez, MD.; Sancenón Galarza, F.; Martínez-Máñez, R.; Barat Baviera, JM. (2016). Enrichment of stirred yogurts with folic acid encapsulated in pH-responsive mesoporous silica particles: Bioaccessibility modulation and physico-chemical characterization. Food Science and Technology. (72):351-360. https://doi.org/10.1016/j.lwt.2016.04.061S3513607

Análisis de las mejoras en la evolución de Studium y elaboración de las asignaturas de contenidos, metodología e historia de la especialidad de dibujo del Máster Oficial de Profesor Educación Secundaria Obligatoria y Bachillerato en la plataforma Moodle 2.X

Memoria ID-0031. Ayudas de la Universidad de Salamanca para la innovación docente, curso 2014-2015