【摘要】 目的:对丁香油进行微囊化,并对其成囊、固化条件进行考察。方法:以丁香油为囊心物,以阿拉伯胶和明胶为囊材,采用复凝聚法制备丁香油微囊,考察温度、pH、阿拉伯胶与明胶比例对成囊的影响;考察固化剂用量、搅拌速度和搅拌时间对固化的影响,以微囊的外观形状,粒径和均匀度为考察指标。结果:在温度35℃、pH3.5以下时壁材凝聚过度;在45℃、pH4.5以上时,壁材不能凝聚。结论:在40℃、阿拉伯胶与明胶1:1、pH4.3时,成囊情况最佳;在固化剂用量2mL/g,转速900n/min、固化时间90min时固化程度较理想。更多还原

【Abstract】 Objective: Microencapsulation of clove oil,and to inspect the conditions of formation and curing.Methods: Clove oil as a microencapsulated core,gum arabic and gelatin as the capsule material,using a complex coacervation method to product the clove oil microcapsules.Investigated temperature,pH value,gum arabic and gelatin ratio of generated microcapsules.Investigated the amount of coagulator,stirring speed and stirring time on curing.To microcapsules appearance of the shape,size and uniformity as the indexes.Result: At temperatures below 35℃,pH values lower than 3.5,the wall material condensed excessive;at the conditions of the temperature was higher than 45℃ and the pH value was greater than 4.5,the wall material cannot be condensed.Conclusion: At the 40℃,the ratio of gum arabic and gelatin is 1:1,pH value was 4.3,the microcapsules had the best generated condition;at the curing agent was 2mL/g,the stirring speed was 900n/min,curing time was 90min,the degree of curing of the microcapsules were better.更多还原