Authors: Gema Nieto Kevin Huvaere Leif H Skibsted
Publish Date: 2011/05/15
Volume: 233, Issue: 1, Pages: 11-18
Abstract
This study describes the use of liposomes as biological membrane models to evaluate the potential of natural antioxidants as inhibitors of lipid peroxidation Antioxidative effects of byproducts from manufacturing of essential oils ie distilled rosemary leaf residues DRL distilled thyme leaf residues DTL and the combined antioxidative effects of DRL or DTL with αtocopherol TOH ascorbic acid AA and quercetin QC on peroxidation of lαphosphatidylcholine liposomes as initiated by hydrophilic azoinitiators were investigated In addition experiments were repeated with whole thyme leaves TL to compare the characteristics of byproducts leaf residues from distillation with the initial industrial product leaf for distillation Extracts from DRL DTL and TL all had an obvious antioxidative effect as evidenced by a lag phase for the formation of phosphatidylcholinederived conjugated dienes DRL and DTL had similar antioxidative activity while whole thyme leaves showed superior antioxidant activity compared with distilled thyme residues Combination of TOH or QC with DRL DTL and TL respectively showed synergism in prolonging of the lag phase
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