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为开发一种基于壳聚糖（chitosan,CS）与羟丙基-β-环糊精（hydroxypropyl-β-cyclodextrin,HP-β-CD）复合壁材的微胶囊体系，用于包封易氧化变色的香料邻氨基苯甲酸甲酯（methyl anthranilate,MA），研究采用单因素实验结合星点设计-效应面法（central composite design-response surface methodology,CCD-RSM），对影响微胶囊的关键工艺参数（壁材比例、芯壁比、超声时间）进行优化，建立了预测模型，采用热重分析（thermogravimetric analysis,TGA）评估其热稳定性，并基于综合热释放指数（comprehensive release index,CRI）分析其热释放行为。确定最佳工艺条件为：CS与HP-β-CD比1∶3.1，芯壁比1∶4.1，超声时间42 min，包埋率达81.26%，验证了微胶囊在65〜278℃缓释、300℃左右急剧释放香料。本研究制备的微胶囊具有高包埋率且能在高温下急速释放香料，在食品烘焙等需温控释放香料的领域展现出良好的应用前景。
Abstract：A microencapsulation system using a composite wall material of chitosan(CS) and hydroxypropyl-β-cyclodextrin(HP-β-CD) for encapsulating methyl anthranilate(MA),a flavor compound prone to oxidation and discoloration,was developed. Single-factor experiments combined with central composite design–response surface methodology(CCD-RSM) were applied to optimize key process parameters affecting microcapsule formation,including the wall material ratio(CS :HP-β-CD),core-to-wall ratio,and ultrasonication time,as well as established a predictive model. Thermogravimetric analysis(TGA) was used to evaluate the thermal stability of the microcapsules,and their release behavior was assessed using the comprehensive release index(CRI). The optimal conditions were determined as follows :CS to HP-β-CD of 1∶3.1(in mass),core-to-wall mass ratio of 1∶4.1,and ultrasonication time of 42 min,resulting in an encapsulation efficiency of 81.26%. The microcapsules exhibited sustained flavor release between 65〜278 ℃ and rapid flavor release around 300℃. The results indicated that the prepared microcapsules possessed high encapsulation efficiency of flavor and rapid temperature-responsive flavor release capability,demonstrating promising potential applications in fields requiring temperature-controlled release of flavors,such as food baking.
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基本信息:
DOI：10.19804/j.issn1006-2513.2026.5.002
中图分类号:TS264.3
引用信息:
[1]赵杨,裘冰洁,巩效伟,等.基于壳聚糖/羟丙基-β-环糊精的香料微胶囊制备、表征及温敏释放行为研究[J].中国食品添加剂,2026,37(05):13-23.DOI:10.19804/j.issn1006-2513.2026.5.002.
基金信息:
云南省科技人才项目（202405AD350017）; 云南中烟工业有限责任公司科技项目（2025XY01）
2026-05-15
2026-05-15
2026-05-15