Abstract
The major aim of this study was to evaluate the usefulness of the flavonoid – phosphatidylcholine coating in inhibiting the lipid peroxidation process in flaxseed oil during storage. The level of malondialdehyde, fatty acid profile and antioxidant activity of flaxseed oil stored in a vessel covered with onion skin extract – phosphatidylcholine coating for 7 weeks at room temperature were analyzed. The application of a flavonoid-coating on the walls of a vessel impeded adverse changes caused by the process of lipid peroxidation while storing flaxseed oil. The level of malondialdehyde was significantly lower in oil stored with antioxidant coating than control sample during whole period of storage. Moreover, antioxidants released from onion skin extract reduced a degree of fatty acid modification in oil as well as increased the biological activity of flaxseed oil.
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