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1.
Vitae (Medellín) ; 30(2): 1-14, 2023-05-08. Ilustraciones
Article in English | LILACS, COLNAL | ID: biblio-1538059

ABSTRACT

Background: Brewer ́s spent grain (BSG) is a biomass by-product generated in large volumes during industrial beer production. BSG has become a growing environmental problem, as most breweries discard it inappropriately, negatively impacting the environment. Alternatives for the exploitation of this by-product have consisted of elaborating food supplements for farm animals, obtaining biofuels, developing adsorbents, and obtaining substances for the food industry. However, the high moisture content in BSG (approximately 70%), poses a significant challenge in exploring various reuse alternatives. Therefore, the implementation of a pre-drying process becomes essential. Objective: This study aimed to analyze the BSG drying kinetics at different temperatures and the effect of the drying temperature on the physical properties and the content of bioactive compounds. Methods: BSG samples were dried at different temperatures (50, 60, 70, 80, 90, and 105°C) and analyzed for their moisture ratio, water activity, total polyphenol content (TPC), and DPPH (1,1-diphenyl-2-picrylhydrazil) radical scavenging activity. Also, four kinetics models were fitted to the drying data. Results:It was determined that the effective diffusivity was between 5.23x10


Antecedentes: El Bagazo residual de malta (BSG por sus siglas en inglés) es un subproducto biomásico generado en grandes volúmenes durante la producción industrial de cerveza. El BSG se ha convertido en un creciente problema para el medio ambiente, debido a que la mayoría de las cervecerías descartan inapropiadamente este residuo generando un impacto negativo al ambiente. Las alternativas para el aprovechamiento de este subproducto han consistido especialmente en la elaboración de suplementos alimenticios para animales de granja, obtención de biocombustibles, desarrollo de adsorbentes y obtención de productos para la industria alimentaria. Sin embargo, el alto contenido de humedad (~70%) del BSG representa un reto para el desarrollo de diferentes alternativas de reutilización, por lo que se hace necesario un proceso de secado previo. Objetivos: En este estudio se analizó la cinética de secado del BSG a diferentes temperaturas y el efecto de la temperatura de secado sobre sus propiedades físicas y contenido de compuestos bioactivos. Métodos: Las muestras de BSG fueron secadas a diferentes temperaturas (50, 60, 70, 80, 90 y 105°C) y analizadas en términos de razón de humedad, actividad acuosa, contenido de polifenoles totales (TPC) y actividad secuestradora del radical DPPH. Además, se ajustaron 4 modelos cinéticos a los datos de secado. Resultados: Se determinó que la difusividad efectiva del BSG varió entre 5.23x10


Subject(s)
Humans , Malta , Temperature , Beer , Kinetics , Biomass
2.
Asia Pacific Allergy ; (4): e35-2018.
Article in English | WPRIM | ID: wpr-750161

ABSTRACT

BACKGROUND: The prevalence of allergic conditions is increasing in most countries. One possible explanation may be childhood nutrition. OBJECTIVE: The aim of the study was to investigate the relationship between consumption of pre-specified types of food in school-aged children and presence of respiratory and allergic symptoms. METHODS: A total of 191 students aged 9–11 years were recruited from 5 schools to geographically cover all of Malta. Data was collected between October 2011 and February 2012. This was part of a bigger study which included clinical and environmental tests besides standardized health questionnaires. For the purposes of this part of the study only the health questionnaires were used. These standardized health questionnaires based on the International Study of Asthma and Allergies in Childhood (ISAAC) were used to identify the presence of respiratory and allergic symptoms and to identify the types of foods and the frequency of consumption of various types of foods. RESULTS: We found that milk, meat, butter, olive oil, and yoghurt consumption had a negative association with allergic symptoms in children, whilst fish consumption had a detrimental effect. These relationships remained significant after correction for paternal level of education. CONCLUSION: The study highlights the fact that nutrition in early childhood may have a significant effect on the risk of allergic conditions. Our results, taken together with data in the literature, suggest that different types of fish might have had different effects. This is probably related to their different fatty acid constitution thus warranting further studies.


Subject(s)
Child , Humans , Asthma , Butter , Constitution and Bylaws , Education , Hypersensitivity , Malta , Meat , Milk , Olive Oil , Prevalence , Yogurt
3.
Rev. Mus. Fac. Odontol. B.Aires ; 26(44): 26-30, dic. 2012.
Article in Spanish | LILACS | ID: lil-687482

ABSTRACT

El presente trabajo fue inspirado en una investigación de la autora, con motivo de un viaje que realizó al archipiélago Maltés, que le hizo recordar la obra de los Caballeros Hospitalarios de San Juan, también conocidos como los Caballeros de Malta. Desde su origen, en Jerusalén, hasta la ubicación definitiva en las islas maltesas.


Subject(s)
History, Ancient , History of Medicine , Hospitals/history , Societies, Medical/history , Christianity/history , Malta
4.
Indian J Pediatr ; 2004 Jul; 71(7): 581-2
Article in English | IMSEAR | ID: sea-78743

ABSTRACT

OBJECTIVE: Recent studies have shown that celiac disease is being diagnosed at a progressively later age. This paper analyses trends in age at diagnosis in a closed island population. METHODS: Patient case notes of all known patients with celiac disease were retrieved and demographic information, mode of presentation including symptomatology and diagnostic criteria were obtained. Over the period 1985 to 2000, information was available on 42 patients with celiac disease. All were aged 14 years. RESULT: The mean age at diagnosis showed an increasing age, with a constant disease incidence. A highly significant positive correlation was found for age at diagnosis with time (rho=0.4, p=0.009). CONCLUSION: It is thought that breast feeding, with later introduction of gluten containing products in the diet, leads to a later presentation of celiac disease. In Malta, over the period under study, the breast feeding rate rose from 20% to 60%. Our findings support the hypothesis that breast feeding offers a degree of protection against the early development of celiac disease, without actually reducing the incidence of the disease.


Subject(s)
Age of Onset , Breast Feeding , Celiac Disease/epidemiology , Child, Preschool , Humans , Incidence , Malta/epidemiology
6.
Rev. Fac. Farm. (Merida) ; 43: 25-28, 2002. tab
Article in Spanish | LILACS | ID: lil-366617

ABSTRACT

En la actualidad las industrias productoras de alimentos se ven en la necesidad de implementar metodologías que faciliten la obtención de resultados en un tiempo corto. Es por esto que esta investigación se buscó validar la técnica de Bioluminiscencia como alternativa de control microbiológico que proporcione resultados rápidos y sensibles basados en la reacción por ATP con la enzima luciferasa presente en todos los organismos vivos. Para llevar a cabo dicha validación se enfrentó la técnica de Bioluminiscencia con la de recuento estándar en placa ya que esta última es la prueba estándar utilizada en la planta para el control microbiológico de los refrescos de fruta y la bebida de malta. El procedimiento realizado consistió en la inoculación de los productos en estudios con microorganismos (bacterias, mohos y levaduras) identificados en estudios anteriores, para garantizar que los resultados obtenidos se acomodaran a la situación real de los productos en la planta. A partir de la inoculación se procedio a tomar muestras paralelas para dos técnicas con un intervalo de dos horas para cada toma en condiciones controladas durante un período de 12 horas. De acuerdo a los resultados obtenidos se establecieron rangos de medición, sensibilidades y especificidades de las técnicas con el fin de conocer cual es la más precisa y más confiable para la detección de microorganismos en producto alterado. Finalmente se pudo concluir que la técnica de recuento estándar en placa es más sensible y especifica obteniendo resultados cuantitativamente confiables en un periodo más largo de tiempo.


Subject(s)
Carbonated Beverages , Luminescence , Malta , Yeasts , Colombia
7.
Gac. méd. Caracas ; 107(2): 158-60, abr.-jun. 1999.
Article in Spanish | LILACS | ID: lil-278840
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