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| Preparation, characterization and antioxidant properties of oil-tea camellia seed oil nanoemulsion |
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| DOI： |
| KeyWord:oil-tea camellia seed oil nanoemulsion ultrasonic technology preparation process characterization antioxidant activity |
| FundProject:浙江省“领雁”研发攻关计划项目（2022C01174） |
| Author Name | Affiliation | | CAI Guoqiang 1,2, XU Wenwen2, LUO Tianji2, PAN Wei1,3,
ZHANG Lei1,2, HE Yibo1,3 | 1.Key Laboratory of Green Cleaning Technology & Detergent of Zhejiang Province, Lishui 323000,
Zhejiang, China
2.NICE Zhejiang Technology Co.,Ltd., Hangzhou 310051, China
3.NICE
Group Co.,Ltd., Lishui 323000, Zhejiang, China |
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| Abstract: |
| In order to expand the commercial application range of oil-tea camellia seed oil(CMO), ultrasonic technology was used to prepare CMO nanoemulsion. The effects of hydroxypropyl -β-cyclodextrin (HP-β-CD) addition amount, ultrasonic power and ultrasonic time on the particle size and polydispersity index(PDI) of the nanoemulsion were investigated by single factor experiment to optimize the preparation process of CMO nanoemulsion. The morphology of CMO nanoemulsion was characterized by scanning electron microscopy (SEM), transmission electron microscope(TEM), contact angle and particle size measurements, and the encapsulating effect was characterized by Fourier transform infrared spectroscopy(FT-IR). In addition, the long-term physical stability and antioxidant activity of CMO nanoemulsion were investigated. The results showed that the optimal conditions for preparation of CMO nanoemulsion were obtained as follows: HP-β-CD addition amount 10%, ultrasonic power 500 W and ultrasonic time 15 min. Under these conditions, the average particle size of CMO nanoemulsion was 66.01 nm. CMO nanoemulsion was transparent and bluish in appearance, with small particle size and uniform distribution. The existence of HP-β-CD/T80 nanoparticles might improve the stability of the emulsion. FT-IR characterization showed that CMO was successfully encapsulated. CMO nanoemulsion had good long-term physical stability, and its scavenging rates of DPPH free radical and OH free radical were significant higher than those of CMO-ethanol solution with the same mass fraction of CMO. In conclusion, the preparation process of CMO nanoemulsion is simple and feasible, and the obtained product has good stability and certain antioxidant activity. |
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