Effect of sinapic acid ester derivatives on the oxidative stability of omega-3 fatty acids rich oil-in-water emulsions

Author(s)

Ferreira da Silveira, Tayse Ferreira ^[1] ; Cajaiba, Leticia Maeda ^[1] ; Valentin, Leonardo ^[1] ; Barea, Bruno ^[2] ; Villeneuve, Pierre ^[2] ; Castro, Inar Alves ^[1]

Affiliation

^[1] Univ Sao Paulo, Fac Pharmaceut Sci, Dept Food & Expt Nutr, LADAF, Av Lineu Prestes 580, B14, BR-05508000 Sao Paulo, SP - Brazil

^[2] IATE, CIRAD, AMIS, SUPAGRO, INRA, UMR 1208, 2 Pl Pierre Viala, Bat 31, F-34060 Montpellier - France

• Document type: Journal article
• Source: Food Chemistry; v. 309, MAR 20 2020.
• Web of Science Citations: 0

Abstract

Oil-in-water (O/W) emulsions are important delivery systems of omega-3 fatty acids (n-3 FA). We investigated the effect of sinapic acid esters concentration and chain length, the electrical charge of the emulsifier and emulsion pH on the oxidative stability of n-3 FA rich O/W emulsions. Echium oil was applied as n-3 FA source. A 2(4) factorial design was used to simultaneously evaluate these factors. Peroxide value, malondialdehyde, 2,4-heptadienal and 2,4-decadienal were measured in the emulsions. pH and the electrical charge of the emulsifier modulated the antioxidant effectiveness of sinapic acid esters, while concentration was not relevant. The combination of positively charged emulsifier with neutral pH provided the best oxidative stability for echium oil emulsions. Our results also suggested that the increase of length chain of sinapic acid, from C4 to C12, reduced the secondary products of oxidation, when echium oil emulsions were prepared using negatively charged emulsifier under acidic conditions. (AU)

• FAPESP's process: 18/10411-1 - Application of phenolipids to increase oxidative stability of n3 polyunsaturated fatty acids emulsions
• Grantee: Letícia Maeda Cajaíba
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• FAPESP's process: 18/21638-7 - Lipophilization of phenolic compounds: optimization of synthesis conditions, antioxidant properties, and identification by LC-MS/MS
• Grantee: Tayse Ferreira Ferreira da Silveira
• Support Opportunities: Scholarships abroad - Research Internship - Post-doctor