University Internacional Valenciana

La Línea de la Concepción, Spain

University Internacional Valenciana

La Línea de la Concepción, Spain
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Morales P.,University Internacional Valenciana | Sanchez-Mata M.C.,Complutense University of Madrid | Camara M.,Complutense University of Madrid | Tardio J.,Instituto Madrileno Of Investigacion Y Desarrollo Rural
Food Science and Technology International | Year: 2012

Polyunsaturated fatty acids play an important role in human nutrition, being associated with several health benefits. The analyzed vegetables, in spite of its low fat content, lower than 2%, present a high proportion of polyunsaturated fatty acids of n-3, n-6 and n-9 series, such as α-linolenic, linoleic and oleic acids, respectively. Wild edible plants contain in general a good balance of n-6 and n-3 fatty acids. The present study tries to contribute to the preservation and valorization of traditional food resources, studying the fatty acids profile of 20 wild vegetables by gas-liquid chromatography with flame ionization detection. Results show that species in which leaves are predominant in their edible parts have in general the highest polyunsaturated fatty acid/saturated fatty acid ratios: Rumex pulcher (5.44), Cichorium intybus (5.14) and Papaver rhoeas (5.00). Due to the low n-6/n-3 ratios of the majority of the samples, they can be considered interesting sources of n-3 fatty acids, especially those with higher total fat amount, such as Bryonia dioica, Chondrilla juncea or Montia fontana, with the highest contents of α-linolenic acid (67.78, 56.27 and 47.65%, respectively). The wild asparaguses of Asparagus acutifolius and Tamus communis stand out for their linoleic acid content (42.29 and 42.45%, respectively). All these features reinforce the interest of including wild plants in diet, as an alternative to the variety of vegetables normally used. © 2012 The Author(s).

Semaan T.,University Paris Diderot | Hubert A.M.,University Paris Diderot | Zorec J.,University Pierre and Marie Curie | Martayan C.,University Paris Diderot | And 6 more authors.
Astronomy and Astrophysics | Year: 2013

Context. Be stars are probably the most rapid rotators among stars in the main sequence (MS) and, as such, are excellent candidates to study the incidence of the rotation on the characteristics of their non-radial pulsations, as well as on their internal structure. Pulsations are also thought to be possible mechanisms that help the mass ejection needed to build up the circumstellar disks of Be stars. Aims. The purpose of this paper is to identify a number of faint Be stars observed with the CoRoT satellite and to determine their fundamental parameters, which will enable us to study their pulsation properties as a function of the location in the HR diagram and to search for correlations with the light outbursts, which are possibly produced by discrete mass ejections. Methods. We identified those objects in the exofields of CoRoT presenting the Be phenomenon using Hα surveys, as well as automated methods based on pulsation properties that we finally confirmed with FLAMES/GIRAFFE and X-shooter spectroscopic observations at VLT/ESO, and with near-IR photometry. The spectra were 1) corrected for the veiling effect, 2) treated with the GIRFIT code to determine apparent fundamental parameters, and 3) corrected with the FASTROT code for effects induced by the rapid rotation. Results. A list of 41 Be star candidates were found from photometric and spectroscopic criteria. The spectral coverage useful for determining the fundamental parameters was obtained for only about half of them. We then spectroscopically identified 21 Be stars, two probable Be stars, and two B stars contaminated by the Sh 2-284 nebulosity. A short description of the spectral characteristics of each star is given. The fundamental parameters and, in particular, the rotation frequency νr (cycles per day) were all corrected for rotational effects at rotation rates ranging from Ω/Ωc = 0.8 to 1.0. We have determined the positions of Be stars in the HR diagram and find two of them located beyond the MS phase. Conclusions. The well-determined fundamental parameters presented in this paper for a statistically reliable sample of Be stars will enable us in forthcoming papers to compare the properties of stars as pulsators either according to their location in different regions of the HR diagram or with those predicted from theory. © ESO, 2013.

Morales P.,Polytechnic Institute of Bragança | Morales P.,University Internacional Valenciana | Carvalho A.M.,Polytechnic Institute of Bragança | Sanchez-Mata M.C.,Complutense University of Madrid | And 3 more authors.
Genetic Resources and Crop Evolution | Year: 2012

Traditional use of noncultivated vegetables has decreased with the development of agriculture and global supply chains. However, some species are still consumed as part of our traditional Mediterranean diet. Plants are among the most important sources of natural antioxidants for retarding lipid oxidative rancidity in foods or for pharmaceutical applications against chronic diseases related to free radicals production. The present study reports tocopherols composition and antioxidant activity of eight wild greens traditionally used in Spain. According to the edible part consumed, two groups were differentiated. Leafy vegetables whose young stems with leaves are consumed (Apium nodiflorum (L.) Lag., Foeniculum vulgare Mill., Montia fontana L. and Silene vulgaris (Moench) Garcke), and wild asparagus whose young shoots with leaf buds scarcely developed are eaten (Asparagus acutifolius L., Bryonia dioica Jacq., Humulus lupulus L. and Tamus communis L.). Among the leafy vegetables, Silene vulgaris and Apium nodiflorum presented the highest antioxidant capacity and antioxidants contents. Among the wild asparagus, the highest antioxidant capacity was obtained in Humulus lupulus. © 2011 Springer Science+Business Media B.V.

Ruiz-Rodriguez B.-M.,Complutense University of Madrid | Morales P.,University Internacional Valenciana | Fernandez-Ruiz V.,Complutense University of Madrid | Sanchez-Mata M.-C.,Complutense University of Madrid | And 5 more authors.
Food Research International | Year: 2011

Arbutus wild berries have been traditionally collected and appreciated in the Mediterranean region, although it is actually considered an underutilized fruit-tree species. Increasing the scarce knowledge about its nutritional composition and natural production may interest a broad range of scholars, such as ethnobotanists, chemists, nutritionists and anthropologists. The present study aims to provide original data on the nutritional value and the biomass production of wild strawberry-tree fruits, studying the variation of these characteristics in fruits harvested in different years, from two different Spanish areas.Macro and micronutrient composition of mature Arbutus unedo fruits have been analyzed, with particular attention to the content of some bioactive compounds (fiber, vitamin C as ascorbic and dehydroascorbic acids, total phenolics, carotenoids, including lycopene) and the organic acids profile. The contribution to recommended dietary allowances (RDAs) of this exotic fruit has also been calculated. Fruit crop volume per tree has been estimated as well in the wild strawberry-tree populations surveyed to provide a general framework for discussing the agronomic potential of the species.A wide variability in the nutrient composition of strawberry-tree fruits was found which shows that the analysis of many different samples from different origins and seasons are required to provide average reliable data about the chemical composition of wild fruits. From the results obtained, strawberry-tree fruits can be considered a very good source of health promoting compounds as vitamin C and dietary fiber (202.6. mg/100 g and 42.6% minimum contribution to RDAs, respectively). They are also rich in total available carbohydrates, sugars, potassium and secondary metabolites, such as phenolic compounds, being poor in lipids and Na. These results, together with its high production may help to reinforce its consumption, as an alternative to the fruits available in the market or a source of bioactive compounds for dietary supplements or functional foods. © 2010 Elsevier Ltd.

Tardio J.,Instituto Madrileno Of Investigacion Y Desarrollo Rural | Molina M.,Instituto Madrileno Of Investigacion Y Desarrollo Rural | Aceituno-Mata L.,Instituto Madrileno Of Investigacion Y Desarrollo Rural | Pardo-de-Santayana M.,Autonomous University of Madrid | And 6 more authors.
Genetic Resources and Crop Evolution | Year: 2011

Montia fontana L. is an aquatic plant traditionally consumed in the Centre and West of the Iberian Peninsula, where it is one of the most highly valued wild vegetables. The aim of this work was to evaluate both the natural yield and nutritional value of this scarcely known plant. Two wild populations, from two different sites of Central Spain, were sampled during three consecutive years. Plant production was estimated by two parameters: production per unit of surface and plant percentage cover in the selected site. Nutritional analyses included proximate composition and total energy, mineral macro and microelements, vitamin C, and organic acids. Mean yield at the growing areas was 2.64 kg/m2, though significant differences among sites and years were found. There was a positive correlation between production and accumulated rainfall from the beginning of the year till the collecting dates. The percentage cover of the species in the potential growing area was 8.25%, without significant differences among sites and years. Therefore, the wild populations of the species can reach a total mean production of 2,138 kg/ha in this Spanish region. This is the first report of a global nutrient composition for Montia fontana. After moisture, the major constituent was fibre (4.44%), much higher than many cultivated vegetables. Also appreciable amounts of vitamin C (34 mg/100 g) and Mn (1.07 mg/100 g) were found. Due to its high lipid content (1.94%) this wild vegetable could be regarded as one of the richest source of omega-3 fatty acids among the leafy vegetables. This species can be considered an interesting wild resource for being included in the diet. Further research is needed for addressing its potential for being cultivated under different culture systems and for selecting accessions with lower oxalate content. © 2011 Springer Science+Business Media B.V.

Romero-Garcia V.,University Internacional Valenciana | Fuster-Garcia E.,University Internacional Valenciana | Sanchez-Perez J.V.,University Internacional Valenciana | Garcia-Raffi L.M.,University Internacional Valenciana
39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010 | Year: 2010

Scatterers with added acoustical properties are used in this work to improve the attenuation capabilities of Sonic Crystal Acoustic Barriers (SCAB). Perforated rigid cylinders add an additional independent periodicity to the SCAB introducing attenuation peaks in the range of low frequencies above the Band Gap of the structure. Band Structures calculated by Finite Element Methods are in good agreement with the experimental results showing the attenuation bands of SCAB made of perforated scatterers. Rock wool scatterers are also used to produce a certain level of attenuation along a wide range of frequencies exploiting the absorbent properties of this material. We present experimental evidences for the improvement in the attenuation properties of the SCAB in the range of low frequencies when we combine perforated cylinders with absorbent materials.

Pascual-Granado J.,Institute Astrofsica Of Andaluca Csic | Garrido R.,Institute Astrofsica Of Andaluca Csic | Gutirrez-Soto J.,Institute Astrofsica Of Andaluca Csic | Gutirrez-Soto J.,University Internacional Valenciana | Martin-Ruiz S.,Institute Astrofsica Of Andaluca Csic
Proceedings of the International Astronomical Union | Year: 2011

The need for a proper interpolation method for data coming from space missions like CoRoT is emphasized. A new gap-filling method is introduced which is based on auto-regressive moving average interpolation (ARMA) models. The method is tested on light curves from stars observed by the CoRoT satellite, filling the gaps caused by the South Atlantic Anomaly. © 2012 International Astronomical Union.

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