10 research outputs found

    Orobanche lainzii (J. Gómez Navarro et al.) Triano & A. Pujadas, comb. nov., (Orobanchaceae), in eastern Andalusia (Spain)

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    Orobanche lainzii (J. Gómez Navarro et al.) Triano & A. Pujadas, comb. nov., (Orobanchaceae), in eastern Andalusia (Spain). Palabras clave. Jopo, conservación, Península Ibérica. Key word. Broomrape, conservation, Iberian Peninsula

    Kinetic and Compositional Study of Phenolic Extraction from Olive Leaves (var.Serrana) by Using Power Ultrasound

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    [EN] Power ultrasound is being used as a novel technique for process intensification. In this study, the feasibility of using power ultrasound to improve the phenolic extraction from olive leaves was approached taking both compositional and kinetic issues into account and also determining the influence of the main process parameters (the electric power supplied, emitter surface and temperature). For this purpose, the extraction kinetics were monitored by measuring the total phenolic content and antioxidant capacity and mathematically described by Naik's model, and HPLC DAD/MS MS was used to identify and quantify the main polyphenols. The electric power supplied and the emitter surface greatly affected the effective ultrasonic power applied to the medium, and hence the extraction rate. However, the influence of temperature on ultrasound assisted extraction was not clear. Compared with conventional extraction, ultrasound assisted extraction reduced the extraction time from 24 h to 15 min and did not modify the extract composition. Industrial relevance: Olive crop produces a significant quantity of byproducts (leaves, branches, solid and liquid wastes), coming from the tree pruning, fruit harvest and oil production, which are rich in phenolic compounds with bioactive properties. The extraction of the bioactive compounds could be an interesting option with which to increase the value of these byproducts, as it requires efficient extraction techniques in order to reduce processing costs and improve productivity. In this sense, ultrasound assisted extraction is considered a novel technique used as ameans of intensifying a slow process, such as the leaching of polyphenols fromvegetablematrices. In order to further address the industrial applications of ultrasound assisted extraction, a kinetic study should be carried out determining both the effective energy introduced into the medium, as well as its influence on the extract quality.The authors thank the Generalitat Valenciana (PROMETEO/2010/062 and PROMETEO/2012/007) for its financial support. M. H. Ahmad Qasem was the recipient of a fellowship from Ministerio de Educacion, Cultura y Deporte of Spain (Programa de Formacion de Profesorado Universitario del Programa Nacional de Formacion de Recursos Humanos de Investigacion).Ahmad-Qasem Mateo, MH.; Canovas, J.; Barrajon-Catalan, E.; Micol, V.; Cárcel Carrión, JA.; García Pérez, JV. (2013). Kinetic and Compositional Study of Phenolic Extraction from Olive Leaves (var.Serrana) by Using Power Ultrasound. Innovative Food Science and Emerging Technologies. (17):120-129. https://doi.org/10.1016/j.ifset.2012.11.008S1201291

    Orobanche lainzii (J. Gómez Navarro & al.) Triano & A. Pujadas, comb. nov., (Orobanchaceae), in eastern Andalusia (Spain)

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    Descrita del NE de Albacete (SE de España), de donde se conoce una única población con no más de 250 individuos, parasitando a Cleonia lusitanica (L.) L. (Lamiaceae) (cf. Gómez Navarro et al ., 2012). Recientemente, en la Sierra de Segura (Jaén: Parque Natural de Cazorla, Segura y Las Villas), hemos localizado una nueva población de esta especie que presenta las mismas características morfológicas del tipo (fig. 1) y que parasita al mismo hospedante, lo que confirma la validez del taxón, distinguible del resto de las especies del subgénero Phelipanche (Pomel) Tzvelev. Aportamos este nuevo binomen ya que consideramos que los taxones del subgénero Phelipanche deben de incluirse en el género Orobanche (cf. Crespo & Pujadas-Salvà, 2006; Domina & Raab-Straube, 2010; Domina, 2010).Peer Reviewe

    Environmental niche variation and evolutionary diversification of the Brachypodium distachyon grass complex species in their native circum-mediterranean range

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    © 2015 Botanical Society of America. PREMISE OF THE STUDY: We conducted environmental niche modeling (ENM) of the Brachypodium distachyon s.l. complex, a model group of two diploid annual grasses (B. distachyon, B. stacei) and their derived allotetraploid (B. hybridum), native to the circum-Mediterranean region. We (1) investigated the ENMs of the three species in their native range based on present and past climate data; (2) identified potential overlapping niches of the diploids and their hybrid across four Quaternary windows; (3) tested whether speciation was associated withniche divergence/conservatism in the complex species; and (4) tested for the potential of the polyploid outperforming the diploids in the native range. METHODS: Geo-referenced data, altitude, and 19 climatic variables were used to construct the ENMs. We used paleoclimate niche models to trace the potential existence of ancestral gene flow among the hybridizing species of the complex. KEY RESULTS: Brachypodium distachyon grows in higher, cooler, and wetter places, B. stacei in lower, warmer, and drier places, and B. hybridum in places withintermediate climatic features. Brachypodium hybridum had the largest niche overlap withits parent niches, but a similar distribution range and niche breadth. CONCLUSIONS: Each species had a unique environmental niche though there were multiple niche overlapping areas for the diploids across time, suggesting the potential existence of several hybrid zones during the Pleistocene and the Holocene. No evidence of niche divergence was found, suggesting that species diversification was not driven by ecological speciation but by evolutionary history, though it could be associated to distinct environmental adaptations

    Preliminary data from a 4-year mirror-image and multicentre study of patients initiating paliperidone palmitate 6-monthly long-acting injectable antipsychotic: the Paliperidone 2 per Year study

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    Background: Paliperidone palmitate 6-monthly (PP6M) is the first long-acting antipsychotic injectable (LAI) to allow for only two medication administrations per year, though there is presently limited insight into its effectiveness and potential added value in real clinical practice conditions. Objectives: To present our ongoing study and draw its preliminary data on patient characteristics initiating PP6M and adherence during the first year of treatment. Methods: The paliperidone 2 per year (P2Y) study is a 4-year, multicentre, prospective mirror-image pragmatic study taking place at over 20 different sites in Europe. The mirror period covers 2 years either side of the PP6M LAI initiation. Retrospective data for the previous 2 years are collected for each patient from the electronic health records. Prospective data are recorded at baseline, 6, 12, 18 and 24 months of drug administration and also cover information on concomitant psychiatric medication, relapses, hospital admissions, side effects, discontinuation and its reasons. Meanwhile, here we present preliminary data from the P2Y study at basal and 6-month period (first and second PP6M administration). Results: At the point of PP6M initiation, the most frequent diagnosis was schizophrenia (69%), the clinical global impression scale mean score was 3.5 (moderately markedly ill) and the rate of previous hospital admissions per patient and year was 0.21. PP6M was initiated after a median of 3–4 years on previous treatment: 146 (73%) from paliperidone palmitate 3-monthly, 37 (19%) from paliperidone palmitate 1-monthly and 17 (9%) from other antipsychotics. The mean dose of the first PP6M was 1098.9 mg. The retention rate at 6 months and 1 year of treatment on PP6M in our cohort was 94%. Conclusion: Patient and clinician preference for LAIs with longer dosing intervals was the main reason for PP6M initiation/switching resulting in high treatment persistence. Future data are needed to evaluate the full impact of PP6M in clinical practice

    Guía de Terapéutica Antimicrobiana del Área Aljarafe, 3ª edición

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    Coordinadora: Rocío Fernández Urrusuno. Co-coordinadora: Carmen Serrano Martino.YesEstas guías son un recurso indispensable en los Programas de Optimización de Antibióticos (PROA). No sólo constituyen una herramienta de ayuda para la toma de decisiones en los principales síndromes infecciosos, proporcionando recomendaciones para el abordaje empírico de dichos procesos, sino que son el patrón/estándar de referencia que permitirá determinar la calidad o adecuación de los tratamientos realizados. Las guías pueden ser utilizadas, además, como herramienta de base para la formación y actualización en antibioterapia, ya que permiten mantener actualizados los conocimientos sobre las nuevas evidencias en el abordaje de las infecciones. Por último, deberían incorporar herramientas que faciliten el proceso de toma de decisiones compartidas con el paciente. El objetivo de esta guía es proporcionar recomendaciones para el abordaje de las enfermedades infecciosas más prevalentes en la comunidad, basadas en las últimas evidencias disponibles y los datos de resistencias de los principales patógenos que contribuyan a mejorar la calidad de la prescripción de antimicrobianos
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