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Position: Home > Articles > Microencapsulation and Controlled-Release Properties of Thymus Oil FOOD SCIENCE 2013,34 (6) 60-63

百里香精油的微胶囊制备及其缓释性能

作  者:
王娣;许晖;汪张贵;谢海伟;曹珂珂;任茂生;田长城
单  位:
蚌埠学院生物与食品工程系
关键词:
微胶囊;啤酒酵母;百里香精油;缓释性能
摘  要:
以啤酒废酵母为壁材包埋制备百里香精油微胶囊,分别考察精油酵母比、包埋温度、包埋时间对精油微胶囊效果的影响。百里香精油最佳包埋条件为精油酵母比为2:1、包埋温度60℃、包埋时间10h。百里香精油包埋率为86.71%;100℃加热30h,精油微胶囊挥发率仅有15.8%。缓释实验结果表明:微胶囊能够降低油脂氧化和香味释放速度,延长精油的使用寿命。
译  名:
Microencapsulation and Controlled-Release Properties of Thymus Oil
作  者:
WANG Di,XU Hui,WANG Zhang-gui,XIE Hai-wei,CAO Ke-ke,REN Mao-sheng,TIAN Chang-cheng(Department of Biology and Food Engineering,Bengbu College,Bengbu 233030,China)
关键词:
microencapsulation;beer yeast;thymus oil;controlled-release properties
摘  要:
Microcapsules of thymus oil were prepared by using beer yeast cells as wall materials.The effects of essential oil-yeast ratio,encapsulating temperature and encapsulating time were investigated.The optimal microencapsulating conditions included essential oil-yeast ratio of 2:1,encapsulating temperature of 60 ℃ and encapsulating time of 10 h.Under these conditions,the maximum yield of essential oil encapsulated in yeast-based microcapsule was 86.71%.After heating at 100 ℃ for 30 h,the releasing rate of volatile components in microcapsules was only 15.8%.Meanwhile,microcapsules also revealed more stable antioxidant activity.Therefore,microencapsulation can reduce the releasing rate and oxidation process of volatile components,thus prolonging the life of essential oil.

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