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Protective effects of equimolar mixtures of monomer and dimer of dehydrozingerone with α-tocopherol and/or ascorbyl palmitate during bulk lipid autoxidation

Vessela, Kancheva and Slavova-Kazakova, Adriana and Fabbri, Davide and Dettori, Maria Antonietta and Delogu, Giovanna and Janiak, Michal and Amarowicz, Ryszard (2014) Protective effects of equimolar mixtures of monomer and dimer of dehydrozingerone with α-tocopherol and/or ascorbyl palmitate during bulk lipid autoxidation. Food Chemistry, Vol. 157 , p. 263-274. ISSN 0308-8146. Article.

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DOI: 10.1016/j.foodchem.2014.02.036

Abstract

Protective effects of recently synthesised dehydrozingerone, M1OH (which is one half of the molecule of curcumin) and dimer of dehydrozingerone, D1(OH)2, as individual compounds (1 mM) and as equimolar binary (1:1) and ternary (1:1:1) mixtures with α-tocopherol (TOH) and/or ascorbyl palmitate (AscPH), were studied during bulk lipid autoxidation at 80 C. The highest oxidation stability of lipid substrate, in the presence of individual compounds, was found for TOH, followed by D1(OH)2 and M1OH, determined from the main kinetic parameters (antioxidant efficiency, reactivity and capacity). AscPH did not show any protective effect. Synergism was obtained for the binary mixtures of (TOH + AscPH) [42.4%], (M1OH + TOH) [32.4%] and (M1OH + AscPH) [35.6%] and for the ternary mixture of (M1OH + TOH + AscPH) [28.7%]. Different protective effects observed were explained on the basis (of results) of TOH regeneration and its content determined by HPLC. These antioxidant binary and ternary mixtures can be used as functional components of foods with health-promoting effects.

Item Type:Article
ID Code:9982
Status:Published
Refereed:Yes
Uncontrolled Keywords:Protective effect, α-tocopherol, bulk lipid autoxidation, ascorbyl palmitate, dehydrozingerone, dimer of dehydrozingerone
Subjects:Area 03 - Scienze chimiche > CHIM/10 Chimica degli alimenti
Area 03 - Scienze chimiche > CHIM/08 Chimica farmaceutica
Divisions:002 Altri enti e centri di ricerca del Nord Sardegna > CNR-Consiglio Nazionale delle Ricerche > Istituto di chimica biomolecolare, Sassari
Publisher:Elsevier
ISSN:0308-8146
Deposited On:22 Jul 2014 12:31

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