Study on the antioxidative mechanism of tocopherol loaded ethyl cellulose particles in thermal-oxidized soybean oil. (15th January 2022)

• Record Type: Journal Article
• Authors: Liu, Ying; Ma, Xin; Li, Jinwei; Fan, Liuping; Huang, Shengquan
• Is Part Of: Carbohydrate polymers. Volume 276(2022)
• Publication Date: 2022-01-15
• Subjects: Soybean oil -- Tocopherol -- Ethyl cellulose -- Tocopherol loaded particle -- Antioxidant activity; Polysaccharides -- Periodicals; Polysaccharides -- Periodicals; Polysaccharides -- Périodiques; Electronic journals; 547.78
• DOI: 10.1016/j.carbpol.2021.118734
• Languages: English
• ISSNs: 0144-8617

Abstract

Abstract: Our previous study proposed preparation method of tocopherol (Toc) loaded ethyl cellulose (EC) particles as antioxidant due to instability of Toc under high temperature. The present study aimed to explore the antioxidant mechanism of loaded particles. Results showed that loaded particles prepared by EC of different viscosities (EC9, EC70, EC200) had antioxidative effect, and the antioxidant activity increased with EC viscosity. Fourier transform infrared analysis demonstrated that the interaction between EC and tocopherol was mainly hydrogen bond. Loaded particles retained effectively the thermal degradation of Toc and thus enhanced the antioxidant activity. Further investigation into thermal oxidation of EC inferred the possible antioxidative mechanism included two aspects. One was that Toc was fixed in the network structure of loaded particles formed by EC to provide a barrier for avoiding degradation. Another was that EC and Toc acted on different stages of lipid oxidation, playing the antioxidative effect together. Graphical abstract: Unlabelled Image Highlights: The interaction between EC and Toc was mainly hydrogen bond. EC provided a physical barrier for Toc in order to avoid rapid degradation. EC showed antioxidation by consuming oxygen in high-temperature heated soybean oil. EC and Toc acted on different stages of lipid oxidation to perform antioxidation.