Obtaining green extracts rich in phenolic compounds from underexploited food by-products using natural deep eutectic solvents. Opportunities and challenges

[EN]Phenolic compounds have attracted scientific interest due to their bioactive properties. Moreover, the environmental awareness has increased considerably and, with it, research into valorisation processes. Food waste is a source of bioactive compounds, however, the most common methods of extract...

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Detalles Bibliográficos
Autores: Palos Hernández, Andrea, Gutiérrez Fernández, María Yolanda, Escuadra Burrieza, José, Pérez Iglesias, José Luis, González Paramás, Ana María
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Universidad de Salamanca (USAL)
Repositorio:GREDOS. Repositorio Institucional de la Universidad de Salamanca
OAI Identifier:oai:gredos.usal.es:10366/155370
Acceso en línea:http://hdl.handle.net/10366/155370
Access Level:acceso abierto
Palabra clave:Bioactive compounds
Polyphenols
Agri-food waste
Natural deep eutectic solvents
Green extraction
Valorisation
2302.90 Bioquímica de Alimentos
Descripción
Sumario:[EN]Phenolic compounds have attracted scientific interest due to their bioactive properties. Moreover, the environmental awareness has increased considerably and, with it, research into valorisation processes. Food waste is a source of bioactive compounds, however, the most common methods of extracting these compounds were polluting. Recently, the use of natural deep eutectic solvents (NADES) is being studied as a way to achieve a green extraction process. This article reviews the opportunities offered by some underexploited food by-products (potato peels, grape pomace, beetroot and olive leaves) as sources of phenolic compounds and discusses the possible application of NADES for extraction. The literature reviewed concludes that these by-products are a rich source of polyphenols and that natural solvents are a real alternative for their extraction. However, further research is needed to overcome the drawbacks of NADES, as well as to study the feasibility of the application of the extracts in the food industry.