Open AccessCereal grain resorcinolic lipids inhibit H2O2-induced peroxidation of biological membranes.
Author(s) -
Arkadiusz Kozubek,
Barbara Nienartowicz
Publication year - 1995
Publication title -
acta biochimica polonica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.452
H-Index - 78
eISSN - 1734-154X
pISSN - 0001-527X
DOI - 10.18388/abp.1995_4589
Subject(s) - chemistry , membrane , hydrogen peroxide , ic50 , lipid peroxidation , biochemistry , membrane lipids , antioxidant , partition coefficient , biophysics , food science , in vitro , chromatography , biology
Cereal grain resorcinolic lipids (5-n-alk(en)ylresorcinols) at micromolar concentrations are able to protect the erythrocyte membrane against hydrogen peroxide-induced lipid oxidation. The antioxidative effect is dependent upon chain length of alkylresorcinol molecules. The C15:0 homolog (IC50 of 10 microM) exhibited strongest activity whereas for long chain homologs (C19:0 and C23:0) IC50 values were higher, 32.5 and 59 microM, respectively. The protective effect of alkylresorcinolic antioxidants was also dependent on their incorporation into the membrane, that is governed by their water-membrane partition coefficient. The results obtained show that alkylresorcinols should be recognized as hydrophobic, membrane-localised antioxidants.