Kinetic modeling of malondialdehyde reactivity in oil to simulate actual malondialdehyde formation upon lipid oxidation.
Aldol self-condensation
Degradation
Hydrolytic cleavage
Lipid oxidation marker
Saturated oil
Simulation
Journal
Food research international (Ottawa, Ont.)
ISSN: 1873-7145
Titre abrégé: Food Res Int
Pays: Canada
ID NLM: 9210143
Informations de publication
Date de publication:
02 2021
02 2021
Historique:
received:
14
08
2020
revised:
18
12
2020
accepted:
21
12
2020
entrez:
2
3
2021
pubmed:
3
3
2021
medline:
28
5
2021
Statut:
ppublish
Résumé
The reactivity of malondialdehyde in saturated glycerol triheptanoate oil was studied over a wide temperature range (298.15-453.15 K). With respect to the non-ideal character of a lipid medium, a kinetic model was proposed that described the experimental malondialdehyde data by a reversible hydrolytic cleavage and an irreversible aldol self-condensation reaction. Significant parameter estimates were obtained by using a global one-step non-linear regression procedure. The aldol self-condensation of malondialdehyde showed to be the main degradation route of malondialdehyde in oils. Simulation of the malondialdehyde formation during lipid oxidation of sunflower oil demonstrated that, depending on the heating time, the experimentally obtained malondialdehyde concentrations can substantially underestimate the ongoing lipid oxidation.
Identifiants
pubmed: 33648286
pii: S0963-9969(20)31088-7
doi: 10.1016/j.foodres.2020.110063
pii:
doi:
Substances chimiques
Plant Oils
0
Sunflower Oil
0
Malondialdehyde
4Y8F71G49Q
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
110063Informations de copyright
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