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Mediterranean sofrito home-cooking technique enhances polyphenol content in tomato sauce

Journal article
Authors J. F. R. de Alvarenga
P. Quifer-Rada
Victoria Westrin
S. Hurtado-Barroso
X. Torrado-Prat
R. M. Lamuela-Raventos
Published in Journal of the Science of Food and Agriculture
Volume 99
Issue 14
Pages 6535-6545
ISSN 0022-5142
Publication year 2019
Published at Institute of Medicine, Department of Internal Medicine and Clinical Nutrition
Pages 6535-6545
Language en
Links dx.doi.org/10.1002/jsfa.9934
Keywords phenolic compounds, matrix effect, extra virgin olive oil, onion, cooking, virgin olive oil, antioxidant capacity, bioactive compounds, phenolics, carotenoids, profile, Agriculture, Chemistry, Food Science & Technology
Subject categories Nutrition and Dietetics

Abstract

BACKGROUND Sofrito, a basic culinary technique widely used in the Mediterranean, may preserve dietary polyphenols and enhance their intake in the Mediterranean population. The aim of this study was to investigate if the sofrito technique improves the polyphenol extractability in a tomato-based sofrito sauce. RESULTS A full factorial design was applied using mathematical models. The content of chlorogenic acid, ferulic acid hexoside and naringenin was higher in the sofrito sauce than in raw tomato. The bioaccessibility of some tomato polyphenols was enhanced by the presence of olive oil and they were protected from oxidation during the cooking process by the use of onion. CONCLUSION The use of olive oil and onion in Mediterranean cooking as a base for sauces and dishes, with an appropriate cooking time, preserve the polyphenol content of food. Thus, Mediterranean cuisine may contribute to the health effects of the Mediterranean diet.

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