基于食用油为连续相的茶多酚反相微乳液的制备-食品科学.PDF

※食品化学 食品科学 2018, Vol.39, No.06 39 基于食用油为连续相的茶多酚反相微乳液的制备 1 1 1 2 2 1,* 2, * 陈梦洁 ，王道源 ，李志勇 ，杨 迎 ，吴金鸿 ，钟耀广 ，王正武 （1.上海海洋大学食品学院，上海 201306 ；2.上海交通大学农业与生物学院，上海 200240 ） 摘  要：制备油烯基聚氧乙烯（10）醚（polyoxyethylene (10) oleyl ether ，Brij97 ）-单油酸甘油酯（glyceryl monooleate ，GMO ）- 乙醇-食用油-水反相微乳液，成功将抗氧化剂茶多酚添加至食用油中。通过拟三元相图法、 动态光散射法和差示扫描量热法研究微乳液的相行为、粒径和抗氧化能力。结果显示，微乳液的最佳配方条件 为复合表面活性剂Brij97与GMO质量比2 ∶8 、水相中水与乙醇质量比4 ∶1。微乳液中茶多酚质量浓度越高，微乳 液粒径越小，但多分散指数越大。当水相中茶多酚质量浓度达到0.10 g/mL 时，30 d 内5 种微乳液粒径都稳定在 8.00～12.00 nm范围内。差示扫描量热法显示空白大豆油微乳液的起始氧化温度为163.40 ℃，添加0.01 g/mL茶多酚 后为175.77 ℃，添加0.10 g/mL茶多酚后为210.88 ℃。 关键词：反相微乳液；抗氧化剂；茶多酚；食用油；差示扫描量热法 Preparation of Tea Polyphenols-Loaded Inverse Microemulsion Using Edible Oil as Continuous Phase 1 1 1 2 2 1,* 2, * CHEN Mengjie , WANG Daoyuan , LI Zhiyong , YANG Ying , WU Jinhong , ZHONG Yaoguang , WANG Zhengwu (1. College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; 2. School of Agriculture and Biology, Shanghai Jiaotong University, Shanghai 200240, China) Abstract: Tea polyphenols-loaded water-in-oil microemulsion (ME) of polyoxyethylene (10) oleyl ether (Brij97)-glyceryl monooleate (GMO)-ethanol-edible oil-water to envelop was prepared successfully in this paper. The phase behavior, particle size, and oxidative stability were investigated by pseudo-ternary phase diagram method, dynamic light scattering (DLS) and differential scanning calorimetry (DSC). The results showed that the optimal mass ratio of Brij97 to GMO was 2:8; the optimal mass ratio of water to ethanol was 4:1.