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| Optimization of process conditions for the preparation of coconut oil nanoemulsion |
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| DOI： |
| KeyWord:coconut oil nanoemulsion ultrasonic emulsification method |
| FundProject:海南省大学生创新创业项目（S201911810015）；海南省自然科学基金项目（20168273） |
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| Abstract: |
| In order to expand the application of coconut oil, coconut oil nanoemulsion was prepared by ultrasonic emulsification with refined cold pressed coconut oil as the oil phase, Tween 80 as the emulsifier and absolute ethanol as the co-emulsifier. The preparation process of coconut oil nanoemulsion was optimized by single factor experiment and orthogonal experiments using the average particle size of coconut oil nanoemulsion and polydispersity index (PDI) as indicators, and the type of coconut oil nanoemulsion prepared was identified. The results showed that the optimal process conditions were ultrasonic power 500 W, ultrasonic time 20 min, mass ratio of oil to emulsion 1∶ 1.5, mass ratio of oil-emulsion mixture to water 2∶ 8. Under the optimal conditions, the average particle size and PDI of the nanoemulsion prepared were 131.0 nm and 0.27, respectively. The prepared coconut oil nanoemulsion was oil in water (O/W) type. In summary, the coconut oil nanoemulsion prepared has small and uniform particle size and the O/W type of coconut oil nanoemulsion broadens the application range of coconut oil. |
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