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| Quality change law during storage and shelf life prediction of hickory oil |
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| DOI： |
| KeyWord:hickory oil storage quality kinetic model prediction model shelf life |
| FundProject:浙江省重点研发计划项目(2021C02001)；2022年杭州市农业与社会发展科研项目(202203B07) |
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| Abstract: |
| In order to provide a theroretical basis for the quality control of hickory oil products in the flow process, the quality change law of hickory oil during storage and the prediction model of shelf life were explored, the sensory quality, acid value and peroxide value of hickory oil during storage at 5, 20 ℃ and 35 ℃ were measured, the kinetic analysis was conducted，the Arrhenius equation was used for fitting, and the shelf life prediction model was established. The results showed that the sensory quality of hickory oil had a strong correlation with acid value and peroxide value. With the prolonging of storage time and the increase of temperature, the sensory quality of hickory oil decreased, and the acid value and peroxide value increased. The higher the temperature, the faster the change rates of acid value and peroxide value, and the change rate of the acid value was greater than that of the peroxide value. The change law of acid value and peroxide value conformed to the first-order reaction kinetic model. The prediction accuracy of the shelf life of hickory oil established by this method was within ±10%. The quality of hickory oil decreased during storage. It has good accuracy in predicting the shelf life of hickory oil between 5-35 ℃ through acid value and peroxide value. |
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