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Chemical characterization and bioactive properties of wine lees and diatomaceou...
Duarte, Cristina Nogueira; Taofiq, Oludemi; Dias, Maria Inês; Heleno, Sandrina A.; Santos-Buelga, Celestino; Barros, Lillian; Amaral, Joana S.Annually, wine production is responsible for generating large quantities of residues, which are frequently disposed of and not valorized. So far, different studies have been conducted on grape pomace, yet less attention has been paid to other residues, such as wine lees and diatomaceous earth used in wine filtration. In this context, this study aimed to evaluate and compare the phenolic profile of these underex...
Didactic analysis of olive mill wastewaters antimicrobial activity
Afonso, Inês Santos; Duarte, Cristina Nogueira; Ribeiro, António E.; Amaral, Joana S.; Ribeiro, J.E.The olive oil production industry is a relevant economic activity in the Mediterranean countries. However, in the extraction process a large amount of a residual effluent called olive mill wastewaters (OMWW) is produced, which represents a large environmental problem. The physicochemical composition of the OMWWis variable but can be characterized by a high organic load, acidic pH, intense oily smell, and a dark...
Chemical composition and biological activity of different residues obtained fro...
Duarte, Cristina Nogueira; Dias, Maria Inês; Heleno, Sandrina A.; Santos-Buelga, Celestino; Dias, Rolando; Barros, Lillian; Amaral, Joana S.In recent years, the bioactive compounds present in agri-food sub-products have attracted increased attention due to their health benefits and advantages within a circular economy context. Annually, wine production is responsible for the production of large amounts of phytotoxic waste, which elimination is considered challenging since these residues can be hazardous to the environment when used as fertilizers o...
Chemical characterization, antioxidant and antimicrobial activities of winemaki...
Duarte, Cristina Nogueira; Dias, Maria Inês; Heleno, Sandrina A.; Santos-Buelga, Celestino; Dias, Rolando; Barros, Lillian; Amaral, Joana S.The exploitation of bioactive compounds trom agri-food by-products has been attracting an increasing interest from different industries within a circular economy context since several of compounds may have health properties or be used as natural colorants or preservatives. So far, several studies have been developed on the characterization of red wine grape pomace and its components (seeds, skins, and stems). H...
Chemical characterization and bioactive properties of different winemaking resi...
Duarte, Cristina Nogueira; Dias, Maria Inês; Heleno, Sandrina A.; Dias, Rolando; Barros, Lillian; Amaral, Joana S.In the last decades, there has been an increasing concern in the search for strategies towards the valorization of agricultural residues. Annually, wine production is responsible for the generation of large quantities of phytotoxic waste, whose disposal is challenging as these residues can be hazardous to the environment when they are overused as fertilizers or simply discarded [1]. However, some of these resid...
Valorização de polifenóis contidos em resíduos da vinha e da oliveira usando ad...
Duarte, Cristina NogueiraEsta investigação teve como objetivo a avaliação de novos adsorventes para a valorização eficiente de resíduos da vinificação e da produção de azeite através da obtenção de produtos de valor acrescentado, especificamente polifenóis. Foram projetados e sintetizados diversos materiais molecularmente impressos (MIPs), considerando diferentes tipos de moléculas molde e variando a sua composição química e caracterís...