八月瓜籽油纳米乳液制备及其稳定性评价  

Preparation and stability evaluation of Akebia trifoliata seed oil nanoemulsion

作　　者：朱仁威 武奕彤 胡深德 沈俊利 陆俊[2] ZHU Renwei;WU Yitong;HU Shende;SHEN Junli;LU Jun(College of Materials and Chemical Engineering,Tongren University,Tongren 554300,China;College of Food Science and Engineering,Central South University of Forestry and Technology,Changsha 410003,China)

机构地区：[1]铜仁学院材料与化学工程学院,贵州铜仁554300 [2]中南林业科技大学食品科学与工程学院,湖南长沙410003

出　　处：《食品与发酵工业》2023年第4期130-137,共8页Food and Fermentation Industries

基　　金：国家大学生创新创业训练计划项目(202110538018);长沙市自然科学基金项目(kq2014154);湖南省林业科技计划项目(XKL201739)。

摘　　要：通过高压均质法制备八月瓜籽油纳米乳液,油相选择八月瓜籽油,乳化剂选择吐温-80,助乳化剂选择丙二醇,以乳液粒径、Zeta电位以及多分散指数(polydispersity index,PDI)为标准,通过单因素试验优化乳液配方与制备工艺,得出制备八月瓜籽油纳米乳液的最佳配方为:八月瓜籽油、吐温-80、丙二醇质量分数分别为10%、2.25%、0.75%;最佳制备工艺参数为:在100 MPa下均质5次。所制得的八月瓜籽油纳米乳液为水包油(oil in water,O/W)型,平均粒径为(146.43±0.47)nm,Zeta电位为(-25.67±0.21)mV,PDI为0.16±0.01,在4、25、60℃下贮藏25 d后的结果表明,八月瓜籽油纳米乳液在低温环境下贮藏期稳定性较好,Ke值为(2.72±0.11)%,吸光比为0.182±0.005;八月瓜籽油纳米乳液对ABTS阳离子自由基清除能力为(52.29±2.341)μmol Trolox/g,表现出了良好的抗氧化活性。The Akebia trifoliata seed oil nanoemulsion was prepared by high-pressure homogenization.The oil phase was Akebia trifoliata seed oil,the emulsifier was Tween-80,and the co-emulsifier was propylene glycol.The emulsion size,Zeta potential,and polydispersity index(PDI)were used as the standards to design a single-factor experiment to optimize the emulsion formulation and preparation process.It was found that the optimal preparation formula was that the mass fraction of Akebia trifoliata seed oil,Tween-80,and propylene glycol were 10%,2.25%,and 0.75%,respectively.The optimal preparation process parameters were homogenization 5 times under 100 MPa.The prepared Akebia trifoliata seed oil nanoemulsion was O/W type,with an average particle size of(146.43±0.47)nm,Zeta potential of(-25.67±0.21)mV,and PDI of 0.16±0.01.After 25 days of storage at 4,25,and 60℃,results showed that the nanoemulsion of Akebia trifoliata seed oil had good stability during storage at low temperatures,with Ke value of(2.72±0.11)%and a spectral ratio of 0.182±0.005.The ABTS cationic radical scavenging activity of Akebia trifoliata seed oil nanoemulsion was(52.29±2.341)μmol Trolox/g,which showed good antioxidant activity.

关 键 词：八月瓜籽油 纳米乳液 高压均质 稳定性 

分 类 号：TS224[轻工技术与工程—粮食、油脂及植物蛋白工程]