478 research outputs found
Procedimiento de preparado de rodajas de berenjena frita con posterior congelación
Referencia OEPM: P9001681.-- Fecha de solicitud: 18/06/1990.-- Titular: Consejo Superior de Investigaciones Científicas (CSIC).El procedimiento de preparado de rodajas de berenjena frita con posterior congelación describe la obtención a partir de berenjena de un producto no perecedero mediante el tratamiento de fritura, congelación y conservación al estado congelado. Con la
fritura se consigue evitar el pardeamiento enzimático. Este procedimiento es aplicable al mercado del producto vegetal al estado congelado y la utilización de un cocinado previo (fritura) del producto vegetal antes
de su congelación.Peer reviewe
Characterisation of ‘Starking’ apple polyphenoloxidase
Experiments were performed to optimise the extraction conditions of
“StarkingÏ apple fruit polyphenoloxidase (PPO), to evaluate the affinity and speciÐcity
towards several substrates and to study the stability of enzyme extracts
from apple samples stored under di†erent conditions. Sodium phosphate bu†er
(0É2 M, pH 6É5) plus 0É25% Triton X and 1% or 2% PVPP was found to be the most efficient extraction mediu10m0. Chlorogenic acid, dopamine and 4-
methylcatechol showed similar speciÐcity towards PPO, and chlorogenic acid
was found to be the best substrate for the enzyme. Enzyme extracts from frozen
cut apple stored at [4¡C, and extracts from lyophilised apple samples stored at
4¡C were more stable than extracts obtained from fresh-cut or acetone powder
sample
Documentación sobre el trastorno por déficit de atención con hiperactividad.
El Trastorno por déficit de atención con hiperactividad (TDAHe)s una de las alteraciones psicopatológicas de inicio en la infancia que cuenta con el mayor número de estudios publicados (más de 5.000)' en la última década. Debido a la gran cantidad de información existente, se ha acotado la búsqueda bibliográfica al periodo comprendido entre 10s años 1995 y el mes de setiembre de 2001. La búsqueda se ha realizado en !as bases de datos PsycINFo y Medline. Para realizar esta búsqueda se han combinado 10s siguientes términos en ambas bases de datos: hyperactivity, children, adults, diagnostic, assessment, cognitive processes, neurology, physiology, etiology, treatment y epidemiology
Dynamics of the pedestal transport during edge localized mode cycles at ASDEX Upgrade
The dynamic behaviour of the ion and electron energy, particle and momentum transport measured during type-I edge localized mode (ELM) cycles at ASDEX Upgrade is presented. Fast measurements of the ion and electron temperature profiles revelead that the ion and electron energy transport recover on different timescales, with the electrons recovering on a slower timescale (Cavedon et al 2017 Plasma Phys. Control. Fusion 59 105007). The dominant mechanism for the additional energy transport in the electron channel that could cause the delay in the electron temperature gradient (VTe) recovery is attributed to the depletion of energy caused by the ELM. The local sources and sinks for the electron channel in the steep gradient region are much smaller compared to the energy flux arriving from the pedestal top, indicating that the core plasma may dictate the local dynamics of the VTe recovery during the ELM cycle. A model for the edge momentum transport based on toroidal torque balance that takes into account the existence of poloidal impurity asymmetries has been developed. The analysis of the profile evolution during the ELM cycle shows that the model captures the dynamics of the rotation both before the ELM crash and during the recovery phase.European Commission (Euratom) Grant agreement No. 633053H2020 Marie-Sklodowska Curie programme (grant agreement No. 708257)European Union’s Horizon 2020 (grant agreement No. 805162
Análisis cienciométrico de las tesis doctorales españolas en Educación Matemática (1976-1998)
Este estudio realiza una revisión cienciométrica usando indicadores
de productividad y citación en una muestra de tesis españolas sobre Educación
Matemática defendidas en la Universidad española desde 1976 hasta
1998. En concreto, se han analizado 135 tesis recuperadas usando un instrumento
de recogida de datos ad hoc. Se infieren patrones cienciométricos
contundentes que podrían ayudar a posicionar la Educación Matemática española
sobre un estatus científico más firme.This study accomplishes a scientometric review relative to productivity
and citation indicators over a sample of doctoral dissertations about
Mathematics Education, defended in the Spanish university during the period
1976-1998. We have analysed 135 retrieved thesis using an ad hoc instrument
for data collection. Strong scientometric patterns are inferred which
could help the Spanish Mathematics Education stand on a sounder scientific
status
Antioxidant capacity, fatty acids profile, and descriptive sensory analysis of table olives as affected by deficit irrigation
preprintThe influence of three irrigation treatments (T0, no stress; T1, soft stress; and, T2, moderate stress) on the key functional properties [fatty acids, sugar alcohols, organic acids, minerals, total polyphenols content (TPC), and antioxidant activity (AA)], sensory quality, and consumers' acceptance of table olives, cv. ‘Manzanilla’, was evaluated. RESULTS: A soft water stress, T1, led to table olives with the highest oil and dry matter contents, with the highest intensities of key sensory attributes and slightly, although not significant, higher values of consumer satisfaction degree. Besides, RDI in general (T1 and T2) slightly increased green colour, the content of linoleic acid, but decreased the content of phytic acid and some minerals. CONCLUSION: The soft RDI conditions are a good option for the cultivation of olive trees because they are environmentally friendly and simultaneously maintain or even improve the functionality, sensory quality, and consumer acceptance of table olives. © 2016 Society of Chemical Industry.Ministerio de Economía y Competitividad AGL2013-45922-C2-1-RMinisterio de Economía y Competitividad AGL2013-45922-C2-2-
Validation of high-pressure homogenization process to pasteurize Brazil nut (Bertholletia excelsa) beverages: Sensorial and quality characteristics during cold storage
The effect of high-pressure homogenization (HPH) on the inactivation of Escherichia coli and the stability of the quality properties of Brazil nut beverages were studied. E. coli was used as target microorganism to validate the HPH process (pressures from 50 to 180 MPa and inlet temperatures (Ti) from 25 to 75 °C). Cold storage (5 °C) for 21 days was conducted to establish the shelf-life of BN beverages, in terms of their microbiological, physical, physicochemical, and sensorial stability. HPH-treated samples were compared to pasteurized BN beverages (63 °C for 20 min). The combination of Ti and the pressure of the HPH process (50 to 150 MPa/75 °C and 180 MPa/25 °C) had a significant effect on E. coli inactivation (8.2 log CFU/mL). During storage at 5 °C, the growth of mesophilic aerobes in processed BN beverages was controlled by the HPH process. Oxidative stability (TBAR assay) and physicochemical properties (pH, acidity, and °Brix) were evaluated during cold storage, showing good stability. Additionally, HPH-treated beverages showed a reduction in their particle size and the formation of more stable protein aggregates, which favored the beverages’ whiteness (color). The HPH process could be an alternative to pasteurization to obtain Brazil nut beverages with an acceptable microbiological shelf life (≥21 days at 5 °C) and high-quality characteristics without the use of any additivesThe authors gratefully acknowledge the financial support from PID2020-118300RB-C21 project from the Spanish Ministry of Science and Innovation and Comunidad Autónoma de Madrid (ALIBIRD, project: P2013/ABI2728) and Wilson V. Vasquez thanks the scholarship “Presidente de la Republica” postgrad program (RJ 4285-2018/MINEDU/VMGI-PRONABEC-OBE) from the Ministry of Education of the Republic of Per
Bioelectrochemically-assisted degradation of chloroform by a co-culture of Dehalobacter and Dehalobacterium
Using bioelectrochemical systems (BESs) to provide electrochemically generated hydrogen is a promising technology to provide electron donors for reductive dechlorination by organohalide-respiring bacteria. In this study, we inoculated two syntrophic dechlorinating cultures containing Dehalobacter and Dehalobacterium to sequentially transform chloroform (CF) to acetate in a BES using a graphite fiber brush as the electrode. In this co-culture, Dehalobacter transformed CF to stoichiometric amounts of dichloromethane (DCM) via organohalide respiration, whereas the Dehalobacterium -containing culture converted DCM to acetate via fermentation. BES were initially inoculated with Dehalobacter, and sequential cathodic potentials of −0.6, −0.7, and −0.8 V were poised after consuming three CF doses (500 μM) per each potential during a time-span of 83 days. At the end of this period, the accumulated DCM was degraded in the following seven days after the inoculation of Dehalobacterium. At this point, four consecutive amendments of CF at increasing concentrations of 200, 400, 600, and 800 μM were sequentially transformed by the combined degradation activity of Dehalobacter and Dehalobacterium. The Dehalobacter 16S rRNA gene copies increased four orders of magnitude during the whole period. The coulombic efficiencies associated with the degradation of CF reached values > 60% at a cathodic potential of −0.8 V when the degradation rate of CF achieved the highest values. This study shows the advantages of combining syntrophic bacteria to fully detoxify chlorinated compounds in BESs and further expands the use of this technology for treating water bodies impacted with pollutants
Inhibition of hyaluronidase activity by high-pressure treated onion
Onions exert their effects on human health via multiple different functions, including antioxidant,
antiinflammatory, and antibacterial properties. Upregulation of hyaluronidase activity occurs in
chronic inflammatory conditions. High hydrostatic pressure food processing offers the chance of
producing functional foods, in the sense that not only preserve the nutritional, microbiological
and sensorial quality of foods, but also can improve the extraction of potentially health-related
compounds due to the effects of this technology on plant food structure. Onions are a good
source of bioactive compounds, such as phenolic compounds and organosulfur compounds,
which have been related to beneficial health effects mainly due to their antioxidant and
antiinflammatory properties. In this study we evaluated the ability of onion treated by highpressure
to inhibit in vitro hyaluronidase activity, as an in vitro measurement of its
antiinflammatory activity.Peer Reviewe
Correction : Ventral hernia repair in high-risk patients and contaminated fields using a single mesh: proportional meta-analysis
The use of mesh is a common practice in ventral hernia repair (VHR). Lack of consensus on which prosthetic material works better in different settings remains. This meta-analysis aims to summarize the available evidence on hernia recurrence and complications after repair with synthetic, biologic, or biosynthetic/bioabsorbable meshes in hernias grade 2-3 of the Ventral Hernia Working Group modified classification. A literature search was conducted in January 2021 using Web of Science (WoS), Scopus, and MEDLINE (via PubMed) databases. Randomized Controlled Trials (RCTs) and observational studies with adult patients undergoing VHR with either synthetic, biologic, or biosynthetic/bioabsorbable mesh were included. Outcomes were hernia recurrence, Surgical Site Occurrence (SSO), Surgical Site Infection (SSI), 30 days re-intervention, and infected mesh removal. Random-effects meta-analyses of pooled proportions were performed. Quality of the studies was assessed, and heterogeneity was explored through sensitivity analyses. 25 articles were eligible for inclusion. Mean age ranged from 47 to 64 years and participants' follow-up ranged from 1 to 36 months. Biosynthetic/bioabsorbable mesh reported a 9% (95% CI 2-19%) rate of hernia recurrence, lower than synthetic and biologic meshes. Biosynthetic/bioabsorbable mesh repair also showed a lower incidence of SSI, with a 14% (95% CI 6-24%) rate, and there was no evidence of infected mesh removal. Rates of seroma were similar for the different materials. This meta-analysis did not show meaningful differences among materials. However, the best proportions towards lower recurrence and complication rates after grade 2-3 VHR were after using biosynthetic/slowly absorbable mesh reinforcement. These results should be taken with caution, as head-to-head comparative studies between biosynthetic and synthetic/biologic meshes are lacking. Although, biosynthetic/bioabsorbable materials could be considered an alternative to synthetic and biologic mesh reinforcement in these settings. The online version contains supplementary material available at 10.1007/s10029-022-02668-
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