α-Linolenic acid and product octadecanoids in Styrian pumpkin seeds and oils: How processing impacts lipidomes of fatty acid, triacylglycerol and oxylipin molecular structures - Université de Montpellier Accéder directement au contenu
Article Dans Une Revue Food Chemistry Année : 2022

α-Linolenic acid and product octadecanoids in Styrian pumpkin seeds and oils: How processing impacts lipidomes of fatty acid, triacylglycerol and oxylipin molecular structures

Résumé

Styrian pumpkin seed oil is a conditioned green-colored oil renowned for nutty smell and taste. Due to α-linolenic acid (ALA) contents below 1% of total fatty acids and the prospect of nutritional health claims based on its potential oxidation products, we investigated the fate of ALA and product oxylipins in the course of downstream processing of seeds and in oils. Lipidomic analyses with Lipid Data Analyzer 2.8.1 revealed: Processing did not change (1) main fatty acid composition in the oils, (2) amounts of triacylglycerol species, (3) structures of triacylglycerol molecular species containing ALA. (4) Minor precursor ALA in fresh Styrian and normal pumpkins produced 6 product phytoprostanes in either cultivar, quantitatively more in the latter. (5) In oil samples 7 phytoprostanes and 2 phytofurans were detected. The latter two are specific for their presence in pumpkin seed oils, of note, quantitatively more in conditioned oils than in cold-pressed native oils.
Fichier principal
Vignette du fichier
Vigor et al Food Chem 2022, 371, 131194.pdf (3.5 Mo) Télécharger le fichier
Origine : Publication financée par une institution

Dates et versions

hal-03378846 , version 1 (14-10-2021)

Licence

Paternité - Pas d'utilisation commerciale - Pas de modification

Identifiants

Citer

Claire Vigor, Thomas Züllig, Thomas O Eichmann, Camille Oger, Bingqing Zhou, et al.. α-Linolenic acid and product octadecanoids in Styrian pumpkin seeds and oils: How processing impacts lipidomes of fatty acid, triacylglycerol and oxylipin molecular structures. Food Chemistry, 2022, 371, pp.131194. ⟨10.1016/j.foodchem.2021.131194⟩. ⟨hal-03378846⟩
166 Consultations
87 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More