Effects of Seed Germination on Oil Oxidation and Tocopherol Stability of Perilla Oil
2011
Hwang, H.S., Inha University, Incheon, Republic of Korea | Choe, E.O., Inha University, Incheon, Republic of Korea
Auto- and photo-oxidative stability of oil extracted from germinated perilla seeds during storage at 60℃ for 4 days was studied by determining peroxide and conjugated dienoic acid values. Tocopherol contents during oil oxidation were also monitored by high performance liquid chromatography. Perilla oil was oxidized and tocopherols were degraded during storage at 60℃ regardless of the presence of light. Light increased oil oxidation and tocopherol degradation. Seeds germinated for 12 h had increased tocopherol contents in the oil and improved the auto- and photo-oxidative stability of the perilla oil. Tocopherol played a more important role as an antioxidant in the presence of light than in the absence of light.
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