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      Antioxidant capacity and diet pattern evaluation in a university community in south eastern Spain Translated title: Evaluación de la capacidad antioxidante y el patrón dietético en una comunidad universitaria del sudeste español

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          Abstract

          Abstract Background: antioxidants can eliminate excess free radicals present in our bodies, and it has been shown that eating a diet rich in polyphenols and anthocyanins, present in vegetables, fruits and legumes, has a protective effect against cancer, heart disease, and some neurological diseases. Objectives: the objective of the present work was to evaluate the eating habits of the university community in Murcia. Methods: the research was carried out by means of surveys on the choice of dishes at university canteens. In addition, the antioxidant activity of the most widely consumed dishes (pork Milanese style, pasta Bolognese, lentil and chorizo stew, Spanish omelette, and vegetable paella) were evaluated using the DPPH, FRAP, and ORAC methods. Results: the results obtained indicated that canteen users preferred consumption of pasta, meat, and fried potatoes rather than vegetables, pulses, and fish as main courses. The most consumed dessert was yogurt, closely followed by fruits. The consumption of water also stands out, and a majority of subjects accompanied their meals with white bread and salad. With regard to antioxidant capacity, it was found that the dish with the highest antioxidant capacity was lentil and chorizo stew, with Spanish omelette being the less antioxidant dish. Conclusion: in conclusion, consumption of fruit, vegetables, and legumes should be encouraged, as they contribute decisively to the antioxidant capacity of the diet.

          Translated abstract

          Resumen Introducción: los antioxidantes pueden eliminar el exceso de radicales libres presentes en nuestro organismo, y se ha demostrado que consumir una dieta rica en polifenoles y antocianinas, presentes en verduras, frutas y legumbres, tiene un efecto protector frente al cáncer, las enfermedades cardíacas y algunas enfermedades neurológicas. Objetivos: el objetivo del presente trabajo fue evaluar los hábitos alimentarios de la comunidad universitaria de Murcia. Métodos: la investigación se llevó a cabo mediante encuestas sobre la elección de platos en los comedores universitarios. Además, se evaluó la actividad antioxidante de los platos más consumidos (cerdo a la milanesa, pasta boloñesa, lentejas con chorizo, tortilla española y paella de verduras) a través de los métodos DPPH, FRAP y ORAC. Resultados: los resultados obtenidos indicaron que los usuarios del comedor prefirieron el consumo de pasta, carne y patatas fritas en lugar del de verduras, legumbres y pescado. El postre más consumido fue el yogur, seguido de cerca por la fruta. También destaca el consumo de agua, y la mayoría acompañan sus comidas con pan blanco y ensalada. En cuanto a la capacidad antioxidante, se encontró que el plato con mayor capacidad antioxidante fueron las lentejas con chorizo, siendo la tortilla española el plato menos antioxidante. Conclusión: en conclusión, conviene fomentar el consumo de frutas, verduras y legumbres, ya que contribuyen de forma decisiva a la capacidad antioxidante de la dieta.

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          Most cited references23

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          Phenolics and polyphenolics in foods, beverages and spices: Antioxidant activity and health effects – A review

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            Natural Antioxidants: Sources, Compounds, Mechanisms of Action, and Potential Applications

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              Assays for hydrophilic and lipophilic antioxidant capacity (oxygen radical absorbance capacity (ORAC(FL))) of plasma and other biological and food samples.

              Methods are described for the extraction and analysis of hydrophilic and lipophilic antioxidants, using modifications of the oxygen radical absorbing capacity (ORAC(FL)) procedure. These methods provide, for the first time, the ability to obtain a measure of "total antioxidant capacity" in the protein free plasma, using the same peroxyl radical generator for both lipophilic and hydrophilic antioxidants. Separation of the lipophilic and hydrophilic antioxidant fractions from plasma was accomplished by extracting with hexane after adding water and ethanol to the plasma (hexane/plasma/ethanol/water, 4:1:2:1, v/v). Lipophilic and hydrophilic antioxidants were efficiently partitioned between hexane and aqueous solvents. Conditions for controlling temperature effects and decreasing assay variability using fluorescein as the fluorescent probe were validated in different laboratories. Incubation (37 degrees C for at least 30 min) of the buffer to which AAPH was dissolved was critical in decreasing assay variability. Lipophilic antioxidants represented 33.1 +/- 1.5 and 38.2 +/- 1.9% of the total antioxidant capacity of the protein free plasma in two independent studies of 6 and 10 subjects, respectively. Methods are described for application of the assay techniques to other types of biological and food samples.
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                Author and article information

                Journal
                nh
                Nutrición Hospitalaria
                Nutr. Hosp.
                Grupo Arán (Madrid, Madrid, Spain )
                0212-1611
                1699-5198
                December 2021
                : 38
                : 6
                : 1200-1208
                Affiliations
                [1] Murcia Murcia orgnameUniversidad de Murcia orgdiv1Facultad de Veterinaria orgdiv2Department of Food Technology, Nutrition, and Food Science Spain
                Article
                S0212-16112021000700014 S0212-1611(21)03800600014
                10.20960/nh.03670
                565a7647-36af-41a3-8e50-81bb5af66d88

                This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

                History
                : 22 April 2021
                : 02 August 2021
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 23, Pages: 9
                Product

                SciELO Spain

                Categories
                Original Papers

                DPPH,FRAP,ORAC,Nutrición,Consumidores,Preferencias,Comunidad universitaria,Estudiantes,Hábitos alimentarios,Nutrition,Preferences,University population,Students,Food habits

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