Please use this identifier to cite or link to this item: http://hdl.handle.net/10174/24775

Title: Phenolic characterization and antioxidant assessment of Vitis vinifera L. grapes produced in Alentejo
Authors: Rouxinol, M. Inês
Martins, M. Rosário
Barroso, João M.
Rato, A. Elisa
Keywords: Phenolic compounds
antioxidant assessment
Vitis vinifera L. grape extracts
Issue Date: Oct-2018
Publisher: Universidade de Évora
Citation: Rouxinol, M.I., Martins, M.R., Barroso, J.M. & Rato, A.E. (2018). Phenolic characterization and antioxidant assessment of Vitis vinifera L. grapes produced in Alentejo. Book of Abstract of International Conference on Mediterranean Diet and Gastronomy: Linking Innovation, Sustainability and Health, p. 64, University of Évora, Évora.
Abstract: Wine is part of the Mediterranean diet and it’s also known by its benefits in human health when consumed with moderation due to the presence of some phytonutrients. During ripening process, red wine grapes naturally develop these compounds, namely polyphenols, which evidence the organoleptic properties. In this study, varieties commonly produced in Alentejo (Syrah, Tempranillo, Touriga Nacional and Trincadeira) were selected to evaluate the evolution of the phenolic content and the evolution of antioxidant activity during vérasion. Total phenolic compounds content and total flavonoids were evaluated by UV/Vis spectroscopy. Anthocyanins content was determined by HPLC-DAD. Antioxidant activity of grape extracts was quantified using DPPH method, total reducing power3 and β-carotene/linoleic acid system.
URI: http://hdl.handle.net/10174/24775
Type: article
Appears in Collections:ICAAM - Artigos em Livros de Actas/Proceedings
HERCULES - Artigos em Livros de Actas/Proceedings

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