Home Cooking and Phenolics: Effect of Thermal Treatment and Addition of Extra Virgin Olive Oil on the Phenolic Profile of Tomato Sauces
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Data
2014-04-09
Autores
Vallverdu-Queralt, Anna
Regueiro, Jorge
Rinaldi de Alvarenga, Jose Fernando
Torrado, Xavier
Lamuela-Raventos, Rosa M.
Título da Revista
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Título de Volume
Editor
Amer Chemical Soc
Resumo
Tomato products are a key component of the Mediterranean diet, which is strongly related to a reduced risk of cardiovascular events. The effect of cooking time (15, 30, 45, and 60 min) and the addition of extra virgin olive oil (5 and 10%) on the phenolic content of tomato sauces was monitored using liquid chromatography coupled to tandem mass spectrometry. Concentration of phenolics in the tomato sauces decreased during the cooking process, with the exception of caffeic acid and tyrosol. The main degradation observed was the oxidation of quercetin, since the hydroxy-function at the C-ring of this flavonoid is not blocked by a sugar moiety, unlike rutin. Higher levels of virgin olive oil in tomato sauce seemed to enhance the extraction of phenolic compounds from the tomato, leading to higher phenolic contents in the sauces. Thus, the food matrix containing the phenolic compounds plays a crucial role in determining their accessibility.
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thermal treatments, cooking effects, polyphenols, food matrix, tomato sauces, extra virgin olive oil, HPLC-MS/MS
Como citar
Journal Of Agricultural And Food Chemistry. Washington: Amer Chemical Soc, v. 62, n. 14, p. 3314-3320, 2014.