Desarrollo de metodologías analíticas para la determinación de polifenoles en matrices alimentarias : evaluación de la estabilidad y de las propiedades bioactivas
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2023
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03/11/2022
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Universidad Complutense de Madrid
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En las últimas décadas, las investigaciones realizadas sobre los compuestos bioactivos naturales, como los polifenoles, han despertado un especial interés debido a su potencial para retrasar, e incluso prevenir, ciertas enfermedades no transmisibles, gracias a sus propiedades beneficiosas entre las que destaca su capacidad antioxidante. Por ello, numerosos sectores industriales están potenciando su uso como ingredientes bioactivos, diseñando productos funcionales y explorando alimentos ricos en compuestos fenólicos, que garanticen una mayor seguridad y promuevan el bienestar del consumidor. La obtención de polifenoles por vía química o biogénica presenta ciertas restricciones de carácter económico y técnico. Así, en la actualidad, se están buscando fuentes alternativas de compuestos fenólicos, como los biorresiduos y subproductos generados por la industria agroalimentaria. Este planteamiento de valorización de residuos alimentarios permite recuperar compuestos de alto valor añadido a partir de materias primas infrautilizadas, minimizando su impacto ambiental y contribuyendo a gestionar eficientemente los recursos naturales, siendo una de las prioridades de la Organización delas Naciones Unidas. Con este fin, es imprescindible diseñar estrategias analíticas que estén en consonancia con los principios de química verde, y que permitan extraer y caracterizarlos compuestos fenólicos recuperados de los biorresiduos agroalimentarios. Asimismo, esta caracterización no sólo se debe abordar desde el perfil fenólico del extracto, sino también desde el punto de vista de sus propiedades bioactivas, ya que estas últimas permitirán estimar la calidad y la potencial aplicabilidad de estos...
In recent decades, research on natural bioactive compounds, such as polyphenols, has aroused special interest given their potential to delay and even prevent certain noncommunicable diseases, largely due to their beneficial properties, most notably their antioxidant capacity. For this reason, many industrial sectors are promoting their use as bioactive ingredients, designing functional products and exploring polyphenol-rich food, which guarantee greater safety and enhance consumer well-being. When it comes to obtaining polyphenols, certain economic and technical constraints emerge regarding the chemical or biogenic production. Thus, alternative sources ofphenolic compounds are currently being sought, namely bio-residues and by-products generated by the agri-food industry. This valorisation approach of food residues enables to recover high value-added compounds from under utilised raw materials, minimising theirenvironmental impact and contributing to the efficient management of natural resources, being a priority of the United Nations Organisation. To this end, it is essential to design analytical strategies consistent with the principles of green chemistry, thereby allowing the extraction and characterisation of phenolic compounds recovered from agri-food bioresidues. Furthermore, not only should this characterisation be approached from the phenolic profile of the extract, but also from the viewpoint of its bioactive properties, as the latter will allow estimating the quality and potential applicability of these extracts...
In recent decades, research on natural bioactive compounds, such as polyphenols, has aroused special interest given their potential to delay and even prevent certain noncommunicable diseases, largely due to their beneficial properties, most notably their antioxidant capacity. For this reason, many industrial sectors are promoting their use as bioactive ingredients, designing functional products and exploring polyphenol-rich food, which guarantee greater safety and enhance consumer well-being. When it comes to obtaining polyphenols, certain economic and technical constraints emerge regarding the chemical or biogenic production. Thus, alternative sources ofphenolic compounds are currently being sought, namely bio-residues and by-products generated by the agri-food industry. This valorisation approach of food residues enables to recover high value-added compounds from under utilised raw materials, minimising theirenvironmental impact and contributing to the efficient management of natural resources, being a priority of the United Nations Organisation. To this end, it is essential to design analytical strategies consistent with the principles of green chemistry, thereby allowing the extraction and characterisation of phenolic compounds recovered from agri-food bioresidues. Furthermore, not only should this characterisation be approached from the phenolic profile of the extract, but also from the viewpoint of its bioactive properties, as the latter will allow estimating the quality and potential applicability of these extracts...
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Tesis inédita de la Universidad Complutense de Madrid, Facultad de Ciencias Químicas, leída el 03-11-2023. Tesis formato europeo (compendio de artículos)