食品科学 ›› 2018, Vol. 39 ›› Issue (6): 39-44.doi: 10.7506/spkx1002-6630-201806007

• 食品化学 • 上一篇    下一篇

基于食用油为连续相的茶多酚反相微乳液的制备

陈梦洁1,王道源1,李志勇1,杨迎2,吴金鸿2,钟耀广1,*,王正武2,*   

  1. (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)
  • 出版日期:2018-03-25 发布日期:2018-03-14
  • 基金资助:
    “十三五”国家重点研发计划重点专项(2016YFD0400200);国家自然科学基金面上项目(31571763;31671923;31471623)

Preparation of Tea Polyphenols-Loaded Inverse Microemulsion Using Edible Oil as Continuous Phase

CHEN Mengjie1, WANG Daoyuan1, LI Zhiyong1, YANG Ying2, WU Jinhong2, ZHONG Yaoguang1,*, WANG Zhengwu2,*   

  1. (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)
  • Online:2018-03-25 Published:2018-03-14

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

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. Higher tea polyphenol (TP) concentration resulted in smaller mean particle size and higher polydispersity index of ME system. Moreover, the mean particle size of 5 kinds of ME systems with 0.10 g/mL TP in the aqueous phase remained between 8.00 and 12.00 nm for 30 days. The results of DSC showed that the incipient oxidation temperature of blank soybean oil ME was 163.40 ℃, while those of ME with 0.01 and 0.10 g/mL TP added were 175.77 and 210.88 ℃, respectively.

Key words: inverse microemulsion, antioxidant, tea polyphenols, edible oil, differential scanning calorimetry

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