Premium
Alkylresorcinols as antioxidants: hydrogen donation and peroxyl radical‐scavenging effects
Author(s) -
KamalEldin Afaf,
Pouru Anniina,
Eliasson Christina,
Åman Per
Publication year - 2001
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/1097-0010(200102)81:3<353::aid-jsfa826>3.0.co;2-x
Subject(s) - chemistry , scavenging , antioxidant , lipid peroxidation , radical , dpph , polyunsaturated fatty acid , organic chemistry , food science , biochemistry , fatty acid
Alkylresorcinols, resorcinol derivatives with a long hydrocarbon chain at position 5 of the phenolic ring, have been reported to act as antioxidants and protect polyunsaturated fatty acids against peroxidation. Their structures with meta ‐dihydroxy substitutions do not, however, support active hydrogen donation and scavenging of peroxyl radicals responsible for propagation of lipid oxidation. This study compares the antioxidant properties of 5‐ n ‐pentadecylresorcinol and α‐tocopherol using two model systems: (i) the DPPH· model to test their ability for hydrogen atom donation; and (ii) a triacylglycerol oxidation model to test their ability for scavenging peroxyl radicals. In agreement with theoretical expectations, results from both models showed 5‐ n ‐pentadecylresorcinol to have very low hydrogen donation and peroxyl radical‐scavenging potency. © 2000 Society of Chemical Industry