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| Release kinetics and oxidation stability of peony seed oil microcapsule |
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| KeyWord:peony seed oil microcapsule release kinetics oxidation stability |
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| Abstract: |
| In order to investigate the effects of microencapsulation on storage stability and shelf life of peony seed oil, Avramis equation was employed to analyze the oil retention rate and study the release kinetics of peony seed oil microcapsule during storage. The change of peroxide value was monitored to study the oxidation kinetics of peony seed oil microcapsule. The results showed that release reaction of peony seed oil microcapsule was between diffusion limited kinetics and first order release kinetics. After microencapsulation, the rising rate of peroxide value of peony seed oil was lower, and shelf life of peony seed oil was significantly extended at 25?℃. Peony seed oil microcapsule still remained high content of unsaturated fatty acids at 45?℃. Therefore, microencapsulation could effectively decrease the oxidation rate of peony seed oil and increase its storage stability and shelf life. |
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