Encapsulation and characterization of soy protein-based ω-3 medium- and long- chain triacylglycerols microencapsulated with diverse homogenization techniques for improving oxidation stability

• Published in: Food chemistry 2024-06, Vol.444, p.138601-138601, Article 138601
• Main Authors: Yang, Zhen, Chen, Liang, Zeng, Chili, Guo, Zengwang, Zhang, Weimin, Tian, Tian, Huang, Zhaoxian, Jiang, Lianzhou
• Format: Article
• Language: English
• Subjects: Capsules - chemistry; Encapsulation efficiency; Fatty Acids, Omega-3 - chemistry; food chemistry; homogenization; Homogenization systems; insulin resistance; microencapsulation; oxidation; Oxidation-Reduction; oxidative stability; particle size; Soy protein; Soybean Proteins; spray drying; storage quality; Structural lipids microcapsules; triacylglycerols; Triglycerides; ultrasonics; water content; zeta potential
• ISSN: 0308-8146; 1873-7072
• DOI: 10.1016/j.foodchem.2024.138601

[Display omitted] •ω-3 MLCTs microcapsules were synthesized using diverse homogenization method.•Encapsulation efficiency of soy protein-based MLCTs microcapsules was 94.56%.•Microcapsules showed excellent water solubility contributed to further application.•Microcapsules exhibited a spherical shape with the smooth surface. Recently, MLCTs have attracted considerable attention as a potential alternative to traditional oils due to their suppressive effect on fat accumulation and insulin sensitivity. In this study, the microcapsules of MLCTs with superior performance were fabricated through different homogenization processes to overcome the limitations of ω-3 medium- and long- chain triacylglycerols (MLCTs), including poor stability and prone oxidation. Additionally, the impact of various homogenization techniques, namely, high-pressure, ultrasound, and cavitation jet, on the particle structure, encapsulation efficiency, and oxidation stability of microcapsules (MLCTs) was investigated. The MLCTs microcapsules fabricated through high-pressure homogenization had a smaller particle size of 295.12 nm, lower PDI of 0.24, and a higher zeta-potential absolute value of 32.65, which significantly improved their dispersion and encapsulation efficiency, reaching 94.56 % after the spray-drying process. Furthermore, the low moisture content and superior storage stability of MLCTs microcapsules have the potential to serve as carriers of liposoluble actives.