摘要
以壳聚糖、海藻酸钠、氯化钙为复合壁材,采用复凝聚法制备了柠檬醛微胶囊,研究了壳聚糖、氯化钙、海藻酸钠用量对微胶囊含油量、粒径以及孔径和比表面积的影响,确定了柠檬醛微胶囊的最佳制备条件,并测试了其缓释性能。柠檬醛微胶囊的最佳制备工艺条件为:在壳聚糖1.2011 g/50 mL H_2O、海藻酸钠3 g/100 mL H_2O、氯化钙1.5 g/50 mL H_2O、精油1 mL时,柠檬醛含量为2.18%。以CoCl_2为指示剂,在相同条件下制备了CoCl_2指示剂微胶囊,研究了指示剂微胶囊的吸水性能对颜色、微胶囊的粒径、表观形貌的影响,建立了微胶囊的吸水量与颜色间的定量关系。研究结果为宏观简便观测分析柠檬醛微胶囊品质奠定了初步理论依据。
Citral microcapsules were prepared through complex coacervation method, using chitosan, alginate sodium and calcium chloride as the wall materials. The effects of chitosan, alginate sodium, and calcium chloride amounts on citral content, particle size, pore diameter, and surface area were investigated. The highest citral content（2.18%） of the microcapsule was achieved at the following conditions： chitosan 1.2011 g/50 mL H_2O, alginate sodium 3 g/100 mL H_2O, calcium chloride 1.5 g/50 mL H_2O, and citral 1 mL. The release property was investigated. Using CoCl_2 as the indicator, microcapsules containing Co Cl2 were prepared at the same conditions of citral microcapsules. The effects of water adsorption properties of CoCl_2 microcapsule on its color, particle size, and morphology were investigated. The quantitative relationship between the absorbed water and color was established. The research supplied primary data for simply analyzing the quality of citral microcapsules.
出处
《食品科技》
CAS
北大核心
2017年第2期60-66,71,共8页
Food Science and Technology
基金
国家自然科学基金项目(21466011
21264007)
关键词
柠檬醛微胶囊
复凝聚法
CoCl2微胶囊
吸水性能
citral microcapsule
complex coacervation method
CoCl2 microcapsules
water adsorption property
