| 毛晴雅1，禤俊勇1，黄俏茵1，张杨1，刘思怡1，夏秋瑜1,2,3，刘书成1,2,3.不同明胶对金枪鱼油O/W乳液及其复合凝聚微胶囊理化特性的影响[J].中国油脂,2025,50(3):.[MAO Qingya1, XUAN Junyong1, HUANG Qiaoyin1, ZHANG Yang1, LIU Siyi1, XIA Qiuyu1,2,3, LIU Shucheng1,2,3.Effects of different gelatins on the physiochemical properties of tuna oil O/W emulsion and subsequent microcapsule via complex coacervation technique[J].China Oils and Fats,2025,50(3):.] |
| 不同明胶对金枪鱼油O/W乳液及其复合凝聚微胶囊理化特性的影响 |
| Effects of different gelatins on the physiochemical properties of tuna oil O/W emulsion and subsequent microcapsule via complex coacervation technique |
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| DOI： |
| 中文关键词: 明胶；复合凝聚技术 O/W乳液；微胶囊；稳定性 |
| 英文关键词:gelatin complex coacervation technique O/W emulsion microcapsule stability |
| 基金项目:国家自然科学基金（32172252）；广东海洋大学大学生创新创业训练计划项目（CXXL2024024）;广东省普通高校重点领域专项（2022ZDZX2028） |
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| Author Name | Affiliation | | MAO Qingya1, XUAN Junyong1, HUANG Qiaoyin1, ZHANG Yang1, LIU Siyi1, XIA Qiuyu1,2,3, LIU Shucheng1,2,3 | 1.Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, Guangdong, China； 2.Collaborative Innovation Center for Key Technologies of Marine Food Deep Processing, Dalian Polytechnic University, Dalian 116034, Liaoning,China；3.Southern Marine Science and Engineering Guangdong
Laboratory (Zhanjiang), Zhanjiang 524025, Guangdong, China |
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| 中文摘要: |
| 旨在为不同明胶在omega-3油脂稳定递送及其相关产品研发和应用提供参考，以金枪鱼油为油相，分别采用猪皮明胶(PSG)、鱼皮明胶(CFG)和酶法水解猪皮明胶(BTG)制备金枪鱼油水包油（O/W）乳液，然后通过复合凝聚技术制备微胶囊，在分析3种明胶理化性质的基础上，考察不同明胶对金枪鱼油O/W乳液及其复合凝聚微胶囊理化特性的影响。结果表明:3种明胶中PSG的疏水性氨基酸含量以及表面疏水性更高，凝胶强度更大；3种O/W乳液中PSG乳液的圆二色谱正、负向吸收峰比值的绝对值和粒径更小、分布更均匀，乳化性质最优，更稳定，具有较高的表观黏度和黏弹性，CFG乳液和BTG乳液在表观黏度、乳化性质、表面疏水性上无显著差异；CFG乳液由于更低的凝胶强度，在复合凝聚时液滴聚集较为分散；3种明胶复合凝聚金枪鱼油微胶囊形状均近似椭圆形，均具有较好的分散程度，较高的有效载荷、包埋率，较低的表面油含量及较好的氧化稳定性，其中以PSG为原料制备的微胶囊最优；相比BTG，以PSG和CFG为原料制备的微胶囊具有更好的热稳定性。综上，3种明胶都可作为脂质稳定递送壁材，在实际应用中可根据微胶囊的不同要求和用途选择相应的明胶。 |
| 英文摘要: |
| Aiming to provide reference for different gelatins in the stable delivery of omega-3 oils and their related product development and application, tuna oil was used as the oil phase, and pig skin gelatin (PSG), fish skin gelatin (CFG) and enzymatically hydrolyzed pig skin gelatin (BTG) were used to prepare tuna oil O/W emulsions, respectively, and then the microcapsules were prepared by the complex coacervation technique. Based on the analysis of physicochemical properties of the three kinds of gelatin, the effects of different gelatins on the physicochemical properties of tuna oil O/W emulsions and their complex coacervation microcapsules were investigated. The results showed that among the three gelatins, PSG had higher hydrophobic amino acid content and surface hydrophobicity, and higher gel strength. Among the three O/W emulsions, the absolute value of the ratio of positive and negative absorption peaks of the circular dichroism spectrum and the particle size of the PSG emulsion were smaller and more uniformly distributed, and the PSG emulsion had optimal emulsification property, higher apparent viscosity and viscoelasticity, and was more stable. There was no significant difference between the CFG and BTG emulsions in terms of apparent viscosity, emulsification property, and surface hydrophobicity. The CFG emulsion had a more dispersed droplet aggregation during complex coacervation due to lower gel strength.The three gelatin complex coalesced tuna oil microcapsules were all approximately elliptical in shape, and all of them had a better degree of dispersion, higher payload, higher embedding rate, lower surface oil content, and better oxidative stability, among which, the microcapsule prepared from PSG was optimal.Compared to BTG, microcapsules prepared from PSG and CFG had better thermal stability. In conclusion, all three gelatins can be candidates for lipid-stabilized delivery walls, and the corresponding gelatins can be selected according to the different requirements and uses of microcapsules in practical applications. |
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