Aceptabilidad de alimentos según sociodiversidad en comedores escolares de Brasil / Food acceptability according to sociodiversity in school canteens in Brazil

Una alimentación saludable en la escuela es fundamental para el crecimiento y desarrollo de los estudiantes, para su bienestar y su buen rendimiento escolar. El Programa Nacional de Alimentación Escolar (PNAE) de Brasil, en este sentido, pretende ofrecer una alimentación variada, segura y que respete la cultura, las tradiciones y los hábitos alimentarios saludables. Ante el escenario actual de malnutrición y de cambio climático, caracterizado por la Sindemia Global, desde diversos niveles gubernamentales se señala la importancia de incluir en los comedores escolares alimentos de la sociobiodiversidad, concepto definido en el Plan Nacional de Promoción de las Cadenas de Productos de la Sociobiodiversidad en Brasil en 2009. Objetivo. El estudio que se presenta tiene como objetivo evaluar la aceptabilidad de las preparaciones a base de productos de la sociobiodiversidad con estudiantes de escuelas públicas de Rio Grande do Sul (RS) y Rio Grande do Norte (RN), Brasil. Materiales y métodos. El trabajo forma parte de un estudio transversal y multicéntrico, con pruebas de adherencia y aceptabilidad de preparaciones a base de alimentos de la sociobiodiversidad realizado con estudiantes de escuelas públicas de RS y RN. Resultado. Se observó que las preparaciones obtuvieron excelentes porcentajes de adhesión, 100% en ambos estados, y de aceptabilidad, oscilando entre el 82 y el 97% de aceptación de las preparaciones. Conclusión. La alimentación puede ser utilizada en el ámbito escolar a partir de su potencial dialógico y socioeducativo para la transformación social y la promoción de la cohesión social en torno a dietas más sostenibles(AU)

Healthy nutrition at school is fundamental for the growth and development of students, for their well-being and good school performance. Brazil's National School Feeding Programme (PNAE) aims to offer a varied and safe diet that respects culture, traditions and healthy eating habits. Faced with the current scenario of malnutrition and climate change, characterised by the Global Syndemic, various levels of government have highlighted the importance of including sociobiodiverse foods in school feeding, a concept defined in the National Plan for the Promotion of Socio-biodiverse Product Chains in Brazil in 2009. Objective. The aim of this study is to evaluate the acceptability of preparations based on sociobiodiversity products with students from public schools in Rio Grande do Sul (RS) and Rio Grande do Norte (RN), Brazil. Materials and methods. The study is part of a cross-sectional, multicentre study, with adherence and acceptability tests of preparations based on sociobiodiversity foods carried out with students from public schools in RS and RN. Results. It was observed that the preparations obtained excellent percentages of adherence, 100% in both states, and acceptability, ranging from 82 to 97% of acceptance of the preparations. Conclusion. School feeding can be used in the school environment from its dialogical and socio-educational potential for social transformation and the promotion of social cohesion around more sustainable diets(AU)

Phenolic compounds and antioxidant activity in vitro and in vivo of Butia and Opuntia fruits.

Despite the consumption recommendations and the potential health benefits, Brazilian biodiversity has a large number of fruit species that are still unexplored, such as Butia catarinensis (Butiá da Praia), Butia eriospatha (Butiá da Serra) and Opuntia elata (Arumbeva). The phenolic compounds of these fruits were determined by HPLC-DAD-MS/MS. Morever, in vitro assays of antioxidant capacity on hydroethanolic extracts against hydrogen peroxide (H2O2), hydroxyl (OH), peroxyl (ROO) and ABTS radicals were evaluated. In vivo assays evaluating the survival of worms and reactive oxygen species (ROS) generation were performed using the nematode Caenorhabditis elegans. Eighteen, twenty-eight and seventeen phenolic compounds were identified in Butiá da Praia, Butiá da Serra and Arumbeva, respectively. The main groups of phenolic compounds found in the fruits were hydroxybenzoic acids (60.5, 26.5 and 96.1% of the total phenolic compounds for Butiá da Praia, Butiá da Serra and Arumbeva, respectively), flavan-3-ols (23.6 and 61.2% of the total phenolic compounds for Butiá da Praia and Butiá da Serra) and flavonols (2.6% of the total phenolic compounds for Arumbeva). The hydroethanolic extracts of these fruits were free radical scavenger, sources of phenolic compounds and did not cause toxic effects in vivo. In hydroethanolic extracts of Butiá da Praia and Arumbeva, the total phenolic content increased by around 67% and 35%, respectively. Besides the health benefits, these proved to be promising sources of natural antioxidants, with phenolic composition variating among species and collection site. The obtained results enable future applications of studied fruits extracts in food and/or pharmaceutical products, encouraging and valuing the sustainable use of biodiversity.