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1.
Heliyon ; 8(6): e09677, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35756133

RESUMEN

This study examined the background before admission to a nursing home and the conditions for the continuity of care, of the relatives of older adults of Colombia and Spain. The study sample comprised 546 participants: 278 and 268 from Colombia and Spain, respectively. Structured interviews were conducted with the older adults' relatives. Sociodemographic similarities predominated, although in the Colombian sample there were significantly more unrelated people. Similarities in previous and current care conditions also predominated too. Cluster 1 included all the cases of Colombian low-resource nursing homes, and Cluster 2 included all the relatives of Colombian high-resource nursing homes and all the Spanish centers. The type of nursing home was the variable more important to identify the abovementioned clusters. Conclusions: Family members from Colombia and Spain continue to care for the elderly admitted to geriatric homes. The type of geriatric center is what establishes the differences in the users.

3.
J Sci Food Agric ; 102(3): 898-907, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-34240436

RESUMEN

BACKGROUND: Filamentous fungi are the main contamination agent in the viticultural sector. Use of synthetic fungicides is the regular answer to these contaminations. Nevertheless, because of several problems associated with the use of synthetic compounds, the industry demands new and safer methods. In the present work, the biopreservation potential of four lactic acid bacteria (LAB) strains was studied against the principal grape contaminant fungi. RESULTS: Agar diffusion test evidenced that all four culture-free supernatant (CFS) had antifungal properties against all tested fungi. The minimum inhibitory concentration (MIC) and minimum fungicidal concentration (MFC) test values evidenced that media fermented by the Lactobacillus plantarum E3 and Lactobacillus plantarum E4 strains showed the highest antifungal activity, resulting in an MFC from 6.3 to 100 g L-1 . Analysis of CFS evidenced the presence of different antifungal compounds, such as lactic acid, phenyllactic acid and pyrazines. In tests on red grapes, an average reduction of 1.32 log10 of the spores per gram of fruit was achieved by all CFS in grapes inoculated with Aspergillus ochraceus and by 0.94 log10 for L. plantarum E3 CFS against Botrytis cinerea. CONCLUSION: The antifungal activity of the fermented CFS by L. plantarum E3 reduced the growth of B. cinerea and A. ochraceus in grapes, which are the main contaminant and main producer of ochratoxin A in these crops, respectively. Therefore, based on the results obtained in this work, use of the strain L. plantarum E3 could be an interesting option for the biopreservation of grapes. © 2021 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.


Asunto(s)
Conservación de Alimentos/métodos , Hongos/efectos de los fármacos , Fungicidas Industriales/farmacología , Lactobacillus plantarum/química , Vitis/microbiología , Contaminación de Alimentos/prevención & control , Frutas/microbiología , Hongos/crecimiento & desarrollo , Fungicidas Industriales/análisis , Fungicidas Industriales/metabolismo , Lactatos/análisis , Lactatos/metabolismo , Lactatos/farmacología , Ácido Láctico/análisis , Ácido Láctico/metabolismo , Ácido Láctico/farmacología , Lactobacillus plantarum/metabolismo , Pirazinas/análisis , Pirazinas/metabolismo , Pirazinas/farmacología
4.
Toxins (Basel) ; 13(11)2021 10 23.
Artículo en Inglés | MEDLINE | ID: mdl-34822536

RESUMEN

Food bio-preservatives are requested as substituents of chemical pesticides in food. The aim of this study was to carry out a screening of twenty biocontrol agents (BCAs) for their potential fungicidal activity in vitro. Twenty BCAs were tested against ten pathogenic fungi. Some of the cell-free supernatants (CFS) tested showed in vitro antifungal activity versus pathogenic fungi. The highest fungicidal activity was observed in the fermented CFS of Paenibacillus chibensis CECT 375, Bacillus amyloliquefaciens CECT 493, and Pantoea agglomerans CECT 850, which showed a minimum inhibitory concentration (MIC) and minimum fungicidal concentration (MFC) values of 125 and 250 g/L, respectively. The compounds responsible for the antifungal activity, such as organic and phenolic acids, were determined. Lactic acid, acetic acid, benzoic acid, and phenyllactic acid among others can be related to antifungal activity. HPLC-MS/MS analysis showed a reduction of ochratoxin A (OTA) and aflatoxin B1 (AFB1) up to 26% (Paenibacillus alvei CECT 2) and 55% (Paenibacillus polymyxa CECT 155), respectively. The present study prompts that metabolism products of BCAs are propitious for the bioconservation of food, due to their ability to reduce the proliferation of mycotoxigenic fungi and mycotoxins production.


Asunto(s)
Aflatoxina B1/metabolismo , Antifúngicos/farmacología , Fungicidas Industriales/farmacología , Ocratoxinas/metabolismo , Control Biológico de Vectores , Venenos/metabolismo , Bacillus amyloliquefaciens/metabolismo , Sistema Libre de Células , Técnicas In Vitro , Paenibacillus/metabolismo , Pantoea/metabolismo
5.
Toxins (Basel) ; 13(8)2021 07 22.
Artículo en Inglés | MEDLINE | ID: mdl-34437384

RESUMEN

The tomato is one of the most consumed agri-food products in Lebanon. Several fungal pathogens, including Alternaria species, can infect tomato plants during the whole growing cycle. Alternaria infections cause severe production and economic losses in field and during storage. In addition, Alternaria species represent a serious toxicological risk since they are able to produce a wide range of mycotoxins, associated with different toxic activities on human and animal health. Several Alternaria species were detected on tomatoes, among which the most important are A. solani, A. alternata, and A. arborescens. A set of 49 Alternaria strains isolated from leaves and stems of diseased tomato plants were characterised by using a polyphasic approach. All strains were included in the recently defined phylogenetic Alternaria section and grouped in three well-separated sub-clades, namely A. alternata (24 out of 49), A. arborescens (12 out of 49), and A. mali morpho-species (12 out of 49). One strain showed high genetic similarity with an A.limoniasperae reference strain. Chemical analyses showed that most of the Alternaria strains, cultured on rice, were able to produce alternariol (AOH), alternariol methyl ether (AME), altenuene (ALT) and tenuazonic acid (TA), with values up to 5634, 16,006, 5156, and 4507 mg kg-1, respectively. In addition, 66% of the strains were able to co-produce simultaneously the four mycotoxins investigated. The pathogenicity test carried out on 10 Alternaria strains, representative of phylogenetic sub-clades, revealed that they were all pathogenic on tomato fruits. No significant difference among strains was observed, although A. alternata and A. arborescens strains were slightly more aggressive than A. mali morpho-species strains. This paper reports new insights on mycotoxin profiles, genetic variability, and pathogenicity of Alternaria species on tomatoes.


Asunto(s)
Alternaria , Frutas/microbiología , Micotoxinas/metabolismo , Enfermedades de las Plantas/microbiología , Solanum lycopersicum/microbiología , Alternaria/genética , Alternaria/aislamiento & purificación , Alternaria/metabolismo , Alternaria/patogenicidad , Líbano , Filogenia
6.
Artículo en Inglés | MEDLINE | ID: mdl-33086556

RESUMEN

Background: Admitting an older adult to a nursing home involves significant adjustment efforts by the family. Our goal was to prepare an assessment instrument for this, given that there was none to date. Method: Participants-134 relatives from different nursing homes in the region of Murcia. Instruments-structured interview for socio-demographic information, satisfaction with the nursing home, well-being and health self-assessment, Radloff's Depression Questionnaire (CES-D), and the first version of CAFIAR. Results: A 15-item instrument with three factors was obtained: Factor 1 (Unease due to admitting an older adult to a nursing home), Factor 2 (Relief), and Factor 3 (Nostalgia and concern for the older adult), in addition to a general adjustment index, with a Cronbach's alpha of 0.74. The general adjustment index and the subscales that demonstrate poor adjustment were significantly correlated with depression and a worse health self-assessment, while the Relief subscale, which indicates better adjustment, was significantly correlated with well-being and a positive health self-assessment. Conclusions: The family adjustment in admitting an older adult to a nursing home questionnaire (CAFIAR) has adequate psychometric properties to assess family adaptation in admitting an older adult to an institution.


Asunto(s)
Salud de la Familia , Casas de Salud , Admisión del Paciente , Instituciones de Cuidados Especializados de Enfermería , Anciano , Toma de Decisiones , Ajuste Emocional , Femenino , Humanos , Masculino , Psicometría , Reproducibilidad de los Resultados , Encuestas y Cuestionarios
7.
Molecules ; 23(7)2018 Jul 04.
Artículo en Inglés | MEDLINE | ID: mdl-29973577

RESUMEN

In this study, the antifungal activity of yellow mustard (YMF) and oriental mustard (OMF) meal extracts against 14 strains of fungi was tested on a solid medium. The results obtained with the YMF were next confirmed in liquid medium determining the minimum inhibitory concentration (MIC) and the minimum fungicide concentration (MFC). Finally, the use of YMF as a natural preservative to extend the useful life of bread was evaluated. Breads with different concentrations of YMF (2, 4, 6 and 8 g/kg) were prepared and contaminated with Aspergillus flavus ISPA 8111 and Penicilliumnordicum CECT 2320. For 10 days the formation of mycelium was observed, and after that the fungal growth and the mycotoxins production was determined. The results obtained with the YMF were compared with breads treated with the commercial additive sodium propionate (E-281). The results showed a significant reduction of the fungal population using 6 g/kg and 8 g/kg of YMF in bread contaminated with A. flavus and with P.nordicum and an extensions of the breads shelf life of 7 and 5 days, respectively, in comparison with the control experiment. A reduction of 78% of AFB1 was observed using 6 g/kg of YMF while no AFB1 production was detected employing 8 g/kg of YMF in bread preparation.


Asunto(s)
Aflatoxinas/toxicidad , Antifúngicos/farmacología , Aspergillus flavus/efectos de los fármacos , Pan/microbiología , Compuestos de Mostaza/farmacología , Aflatoxinas/química , Microbiología de Alimentos , Conservantes de Alimentos/farmacología , Almacenamiento de Alimentos , Pruebas de Sensibilidad Microbiana , Estructura Molecular , Penicillium/efectos de los fármacos , Propionatos/farmacología
8.
J Sci Food Agric ; 98(2): 792-798, 2018 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-28675475

RESUMEN

BACKGROUND: Brazil produces approximately 40 000 tons of Brazil nuts annually, which is commonly contaminated with fungi and mycotoxins. Gaseous allyl isothiocyanate (AITC) was used to inhibit the growth of Aspergillus parasiticus and its production of aflatoxins (AFs) in Brazil nuts. RESULTS: Nuts were inoculated with 104 spores g-1 of A. parasiticus and placed in airtight glass jars with controlled relative humidity (RH = 95 or 85%). Samples were treated with 0, 0.5, 1.0 or 2.5 µL L-1 of gaseous AITC and analyzed after 30 days to determine the fungal population and AFs content. Samples were also submitted to sensory evaluation. AITC at 2.5 µL L-1 could completely inhibit the fungal growth and AFs production in both the RH tested. AITC at 0.5 and 1 µL L-1 did not affect the microbial growth at RH = 95%, but 1 µL L-1 reduced the production of AFs by ∼50%. All AITC treatments reduced the fungal population and AFs to undetectable levels at RH = 85%. None of the concentrations altered sensory characteristics of Brazil nuts. CONCLUSION: Gaseous AITC could be used as an alternative to inhibit the growth of A. parasiticus during storage and transport of Brazil nuts. © 2017 Society of Chemical Industry.


Asunto(s)
Aflatoxinas/metabolismo , Aspergillus/efectos de los fármacos , Bertholletia/microbiología , Conservación de Alimentos , Conservantes de Alimentos/farmacología , Isotiocianatos/farmacología
9.
Food Chem Toxicol ; 83: 222-8, 2015 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-26146190

RESUMEN

Aflatoxins (AFs) are secondary metabolites produced by different species of Aspergillus, such as Aspergillus flavus and Aspergillus parasiticus, which possess mutagenic, teratogenic and carcinogenic activities in humans. In this study, active packaging devices containing allyl isothiocyanate (AITC) or oriental mustard flour (OMF) + water were tested to inhibit the growth of A. parasiticus and AFs production in fresh pizza crust after 30 d. The antimicrobial and anti-aflatoxin activities were compared to a control group (no antimicrobial treatment) and to a group added with commercial preservatives (sorbic acid + sodium propionate). A. parasiticus growth was only inhibited after 30 d by AITC in filter paper at 5 µL/L and 10 µL/L, AITC sachet at 5 µL/L and 10 µL/L and OMF sachet at 850 mg + 850 µL of water. However, AFs production was inhibited by all antimicrobial treatments in a dose-dependent manner. More importantly, AITC in a filter paper at 10 µL/L, AITC sachet at 10 µL/L, OMF sachet at 850 mg + 850 µL of water and sorbic acid + sodium propionate at 0.5-2.0 g/Kg completely inhibited AFs formation. The use of AITC in active packaging devices could be a natural alternative to avoid the growth of mycotoxinogenic fungi in refrigerated bakery products in substitution of common commercial preservatives.


Asunto(s)
Aflatoxinas/antagonistas & inhibidores , Antiinfecciosos/metabolismo , Aspergillus/metabolismo , Pan/microbiología , Contaminación de Alimentos/prevención & control , Conservantes de Alimentos/metabolismo , Isotiocianatos/metabolismo , Aflatoxinas/análisis , Aflatoxinas/metabolismo , Aflatoxinas/toxicidad , Aspergillus/crecimiento & desarrollo , Pan/análisis , Carcinógenos/análisis , Carcinógenos/antagonistas & inhibidores , Carcinógenos/metabolismo , Carcinógenos/toxicidad , Recuento de Colonia Microbiana , Manipulación de Alimentos , Embalaje de Alimentos , Planta de la Mostaza/química , Mutágenos/análisis , Mutágenos/química , Mutágenos/metabolismo , Mutágenos/toxicidad , Aceites Volátiles/metabolismo , Preparaciones de Plantas/metabolismo , Refrigeración , Semillas/química , España , Especias/análisis , Teratógenos/análisis , Teratógenos/química , Teratógenos/metabolismo , Teratógenos/toxicidad
10.
Psicol. conduct ; 23(1): 35-49, ene.-abr. 2015. graf, tab
Artículo en Español | IBECS | ID: ibc-139095

RESUMEN

El presente estudio trata de identificar si existen combinaciones de factores resilientes que den lugar a diferentes perfiles de resiliencia en personas con discapacidad motora. Asimismo, comprobar si existen diferencias estadísticamente significativas entre los grupos obtenidos respecto a las dimensiones de las habilidades sociales. La "Escala de resiliencia" (Resilience Scale; Wagnild y Young, 1993) y la "Escala de habilidades sociales" (EHS; Gismero, 2002) fueron administradas a 116 personas con discapacidad motora, de entre 20 y 45 años (M = 22,25; DT= 4,33). El análisis de conglomerados identificó cuatro perfiles resilientes: un perfil de alta resiliencia, un perfil de baja resiliencia, un grupo con un predominio de aceptación de uno mismo y de la vida y un último perfil con predominio de competencia social. Los resultados revelaron diferencias estadísticamente significativas entre los perfiles obtenidos con respecto a las dimensiones de las habilidades sociales. Esto sugiere la necesidad de profundizar en el conocimiento de la resiliencia y en el diseño de programas que potencien las habilidades sociales de las personas con discapacidad para su integración psicosocial


The present study is aimed to identify different profiles in resilience. In addition, significant differences in social skills domains among profiles previously identified are also analyzed. The Resilience Scale (Wagnild & Young, 1993) and Social Skills Scale (Gismero, 2002) were administered to 116 people with physical disabilities, aged 20 to 45 years (M= 22.25, DT= 4.33). Cluster analyses allowed identifying four different resilience profiles: a group of people with a high resilience profile, a group with low resilience, a group with predominance of high scores in self and life acceptance and, finally, a group of people with high social competence. Results also revealed significant statistical differences in most domains of social skills among profiles. Results suggest the need of broadening


Asunto(s)
Adulto , Femenino , Humanos , Masculino , Adulto Joven , Personas con Discapacidad/psicología , Resiliencia Psicológica , Habilidades Sociales , Monitoreo Epidemiológico/tendencias , Relaciones Interpersonales , Asertividad , España/epidemiología
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