期刊
JOURNAL OF FUNCTIONAL FOODS
卷 18, 期 -, 页码 959-967出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jff.2014.04.008
关键词
Ferulic acid; Ferulates; Lipid oxidation; Fish oil enrichment; Cut-off effect; Antioxidants
资金
- Danish Research Council, Technology and Production [10-093655]
Lipophilization of phenolics by esterification with fatty alcohols may alter their localization in an emulsion and thereby their antioxidant efficacy. In this study, synthesized un-branched alkyl ferulates were evaluated as antioxidants in fish oil enriched milk. Lipid oxidation was determined by peroxide values and concentration of volatile oxidation products. A cut-off effect in the antioxidant efficacy in relation to the alkyl chain length was observed. The most efficient alkyl ferulate was methyl ferulate followed by ferulic acid and butyl ferulate, whereas octyl ferulate was prooxidative and the prooxidative effect increased further with an increment in the alkyl chain length from C8 to C12. Further elongation of the alkyl chain length to C16 and C20 resulted in weak prooxidative effects to weak antioxidative effects depending on the different volatile oxidation compounds developed. (C) 2014 Elsevier Ltd. All rights reserved.
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