姜油树脂微胶囊稳定性及动力学特性的研究

Study on the stability and the dynamics characteristic of ginger oleoresins microencapsulation

以姜粉和姜油树脂为对照、姜辣素保存率为评价指标,通过实验考察了姜油树脂微胶囊(姜油树脂/β-环糊精包合物)在酸、碱、紫外线、高温、高湿影响下的稳定性,并进行了动力学特性(降解速率常数和半衰期)的初步研究。结果显示,pH1和pH11分别处理1d,微胶囊样品中姜辣素保存率分别为94.5%和70.3%。紫外光处理,微胶囊样品中姜辣素降解的速率常数为1.1463,半衰期为44.8d;110℃处理,姜辣素降解速率常数为2.50,半衰期为20.9d;高湿度(相对湿度92.5%)下,姜辣素降解速率常数3.12,半衰期为17.3d。与姜粉和姜油树脂相比,微胶囊对酸、碱、紫外线、高温、高湿等外界因素有着良好的稳定性。

Taking ginger powder and the ginger oleoresins as contrast,conservancy rate of gingerols as the index,the stability and dynamics characteristic（resolving velocity constant and the half-life）of ginger oleoresins microencapsulation（Gingeroleoresin/β-CD inclusion）was investigated under sourly,the alkali,ultraviolet ray,heat,high humidity（RH 92.5%）influence.The results showed the pH1 and pH11 handled a day respectively,conservancy rate of gingerols distinguished to 94.5% and 70.3% in the microencapsulation sample.Ultraviolet ray processing,resolving velocity constant of gingerols in the microencapsulation sample was 1.1463,the half-life was 44.8 days.110℃ processings,resolving velocity constant of gingerols was 2.50,the half-life was 20.9 days.High degree of humidity（92.5% of relative humidity）bottom,resolving velocity constant of gingerols was 3.12,the half-life was 17.3 days.That compared with the ginger powder and ginger oleoresins,ginger oleoresins microencapsulation had the good stability to sour,the alkali,ultraviolet ray,heat,high humidity etc.