Oxidative spoilage is a phenomenon that can occur both in winemaking and during bottle storage. The com-plexity of oxidative spoilage makes it difficult to identify all the products from oxidation processes, especially in bottled wines with varying degrees of oxidative spoilage, i.e., “random oxidation”. To this end, this study sought to obtain a deeper insight into the chemistry of white wine samples to identify compounds able to discriminate the different oxidative statuses. The results of metabolomics and VIP analysis outlined molecules such as 3-methylcatechol, cyanidin 3-O-6″-p-coumaroyl-glucoside, delphinidin 3-O-glucoside, quercetin 3-O-glucosyl-xy-loside, dihydroquercetin, and quercetin 3-O-glucuronide to be discriminant in the detection of the oxidative status of the white wines under study, which were preliminarily classified in low and high oxidation classes by means of sensory analysis. Parameters such as total and free sulfur dioxide content and browning and pinking measurements were confirmed to remain significantly correlated with oxidation-related issues.

Romanini, E., Colangelo, D., Lucini, L., Lambri, M., Identifying chemical parameters and discriminant phenolic compounds from metabolomics to gain insight into the oxidation status of bottled white wines., <<FOOD CHEMISTRY>>, 2019; 288 (1): 78-85. [doi:10.1016/j.foodchem.2019.02.073] [http://hdl.handle.net/10807/139490]

Identifying chemical parameters and discriminant phenolic compounds from metabolomics to gain insight into the oxidation status of bottled white wines.

Romanini, Elia
Writing – Original Draft Preparation
;
Colangelo, Donato
Writing – Review & Editing
;
Lucini, Luigi
Methodology
;
Lambri, Milena
Conceptualization
2019

Abstract

Oxidative spoilage is a phenomenon that can occur both in winemaking and during bottle storage. The com-plexity of oxidative spoilage makes it difficult to identify all the products from oxidation processes, especially in bottled wines with varying degrees of oxidative spoilage, i.e., “random oxidation”. To this end, this study sought to obtain a deeper insight into the chemistry of white wine samples to identify compounds able to discriminate the different oxidative statuses. The results of metabolomics and VIP analysis outlined molecules such as 3-methylcatechol, cyanidin 3-O-6″-p-coumaroyl-glucoside, delphinidin 3-O-glucoside, quercetin 3-O-glucosyl-xy-loside, dihydroquercetin, and quercetin 3-O-glucuronide to be discriminant in the detection of the oxidative status of the white wines under study, which were preliminarily classified in low and high oxidation classes by means of sensory analysis. Parameters such as total and free sulfur dioxide content and browning and pinking measurements were confirmed to remain significantly correlated with oxidation-related issues.
2019
Inglese
Romanini, E., Colangelo, D., Lucini, L., Lambri, M., Identifying chemical parameters and discriminant phenolic compounds from metabolomics to gain insight into the oxidation status of bottled white wines., <<FOOD CHEMISTRY>>, 2019; 288 (1): 78-85. [doi:10.1016/j.foodchem.2019.02.073] [http://hdl.handle.net/10807/139490]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10807/139490
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