辛烯基琥珀酸酯化大豆多糖及其乳化性能研究  

Study of Octenyl Succinic Ester of Soybean Soluble Polysaccharide and Its Emulsifying Stability

作　　者：刘倩茹[1] 冯纪璐 齐军茹[1] 

机构地区：[1]华南理工大学食品科学与工程学院,广东广州510640

出　　处：《现代食品科技》2017年第5期109-114,共6页Modern Food Science and Technology

基　　金：国家自然科学基金青年面上连续资助项目(31370036);中央高校基本科研业务费专项资金项目(2015Z2119)

摘　　要：利用辛烯基琥珀酸酐(Octenyl succinic anhydride,OSA)与水溶性大豆多糖(Soybean soluble polysaccharides,SSPS)酯化反应制备一种新型绿色的聚合大豆多糖(OSA-SSPS)。由于基于OSA-SSPS修饰的O/W乳液是脂溶性生物活性化合物很好的包埋和输送载体,本文利用大豆酸溶蛋白(acid soluble soy protein,ASSP)和OSA-SSPS静电复合作用制备ASSP/OSA-SSPS乳液,通过测定OSA-SSPS乳化性能,ASSP/OSA-SSPS乳液的粒径分布,zeta-电位,及其微观形貌,同时对比SSPS,具体分析OSA-SSPS乳化性能的优越性。结果表明,OSA-SSPS乳化活性(EAI)及乳化稳定性(ES)均高于SSPS。同时,ASSP/OSA-SSPS乳液粒径受pH和盐离子浓度变化影响较小,稳定性高于SSPS。因此,相比于SSPS,OSA-SSPS具有更好的乳化稳定性。文章通过对OSA-SSPS乳化活性,乳化稳定性以及ASSP/OSA-SSPS乳液储存稳定性的系统分析,为OSA-SSPS制备及其在O/W乳液中的工业化生产提供理论指导。The esterification of soybean soluble polysaccharide （SSPS） and octenyl succinic anhydride （OSA） was used to prepare a novel green polymefized soybean polysaccharide （OSA-SSPS）. OSA-SSPS stabilized oil-in-water （O/W） emulsions are good embedding and transporting carriers for lipophilic bioactive compounds. The electrostatic complexation of acid soluble soy protein （ASSP） and OSA was used to prepare an ASSP/OSA-SSPS emulsion in this study. The advantages OSA-SSPS were analyzed specifically by measuring its emulsifying properties, the droplet size distribution of the ASSP/OSA-SSPS emulsion, the C-potential, and the rnicrostructure, and comparing them with those of SSPS. The droplet size of the ASSP/OSA-SSPS emulsion was less affected by pH and ionicstrength, and ASSP/OSA-SSPS was more stable than SSPS. Therefore, OSA-SSPS had a better emulsifying stability than SSPS. The emulsifying activity and emulsifying stability of OSA-SSPS and the storage stability of the ASSP/OSA-SSPS emulsion were systematically analyzed in this study, which provides a theoretical guide for the preparation of OSA-SSPS and its industrial production in O/W emulsion.

关 键 词：辛烯基琥珀酸酐 水溶性大豆多糖 酯化 乳化稳定性 

分 类 号：TS202.3[轻工技术与工程—食品科学]