文献名：Ethyl cellulose particles loaded with α-tocopherol for inhibiting thermal oxidation of soybean oil
作者： Xin Maa，Ying Liua，Liuping Fanab，Weiqiang Yanc
a State Key Laboratory of Food Science & Technology, Jiangnan University, Wuxi, 214122, China
b School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
c Huineng Biotechnology (Jiangsu) Co., Ltd, Huaian, 223000, China
摘要：Most endogenous antioxidants degrade and lose efficiency during frying. The study aimed to inhibit thermal oxidation of soybean oil by fabricating α-tocopherol loaded particles with ethyl cellulose (EC) of different viscosity grades (M9, M70 and M200) via anti-solvent method. As the viscosity of ethyl cellulose increased, particle size decreased from micrometer to nanometer. Confocal laser scanning microscope confirmed successful encapsulation and uniform distribution of α-tocopherol in the loaded particles. Differential scanning calorimetry and thermogravimetric analysis demonstrated that loaded particles protected α-tocopherol from oxidation and degradation. Meanwhile, Fourier transformed infrared demonstrated that α-tocopherol interacted with EC through hydrogen bond and hydrophobic effects. With excellent dispersibility in soybean oil, loaded particles effectively inhibited thermal oxidation of soybean oil and loaded M200 nanoparticles was the most effective, which performed far better than tert-butylhydroquinone (TBHQ). Therefore, the nanoparticles offered a promising way to enhance oxidative stability of oils during thermal processing.
关键词：Frying oil，Antioxidant，Viscosity，Nanoparticles，Oxidative stability
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