黑果枸杞花色苷微胶囊化研究
2017-07-13韩飞王苗苗严欢
韩飞 王苗苗 严欢
摘要 [目的]建立微胶囊造粒仪法制备黑果枸杞花色苷微胶囊的方法。[方法]通过单因素试验,考察壁材中海藻酸钠、明胶、β-环糊精以及氯化钙添加量对黑果枸杞花色苷包埋率的影响,采用正交试验优化黑果枸杞花色苷微胶囊的包埋工艺。 [结果]黑果枸杞微胶囊的最佳制备工艺为海藻酸钠添加量2.0%,明胶添加量7.0%,β-环糊精添加量40.0%,氯化钙添加量2.5%。此条件下制备的微胶囊平均包埋率可达90%。黑果枸杞花色苷微胶囊为圆形球状的玫红色颗粒,受强光、温度的影响,明显比微胶囊化之前稳定。[结论]该研究可为黑果枸杞花色苷的进一步开发利用提供参考。
关键词 黑果枸杞;花色苷;微胶囊造粒仪;正交试验
中图分类号 S567.1+9 文献标识码 A 文章编号 0517-6611(2017)34-0074-04
Abstract [Objective]To establish a method for preparing anthocyanin microcapsules of Lycium barbarum L. by microencapsulation granulator. [Method]Through single factor experiment, study the wall material of sodium alginate, gelatin, beta cyclodextrin, and the mass fraction of calcium chloride on Lycium ruthenicum anthocyanins package effect of embedding rate, the optimization of micro encapsulation technology of Lycium ruthenicum anthocyanins in orthogonal test. [Result]The results showed that the optimum preparation conditions of alginate microcapsules were sodium alginate concentration 2.0%, gelatin concentration 7.0%, concentration of βcyclodextrin 40.0%, calcium chloride concentration 2.5%. Under these conditions, the average embedding rate of microcapsules was 90%. The anthocyanin microcapsule of Lycium barbarum L. is a round spherical rose granule, which is obviously stabilized by the influence of light and temperature. [Conclusion]This study can provide reference for further development and utilization of anthocyanins from Lycium barbarum L..
Key words Lycium barbarum L;Anthocyanin;Microcapsule granulator;Orthogonal test
黑果枸杞(Lycium ruthenicum Murr.)為茄科枸杞属多棘刺灌木,主要分布于我国山西北部、宁夏、甘肃、青海、新疆等省,生长在气候相对干燥、海拔高的盆地沙漠地带,是一种珍贵的药食两用植物[1]。果实中富含多糖、黄酮、类黄酮[2]、水溶性花色苷,该花色苷具有资源丰富、安全无毒[3]等优点。据报道,黑果枸杞花色苷具有抗氧化[4]、抗衰老[5]、抗辐射[6]、抗疲劳、美容养颜[7]等功效,在食品及药品方面具有很高的开发利用价值。但黑果枸杞花色苷与其他天然花色苷一样,在脱离植物体以后,容易受到光照、温度、pH 以及氧气[8]的影响而不稳定,大大限制了其应用范围。
微胶囊技术是一种利用天然或合成高分子材料将固体、气体等物质包埋形成微小粒子的技术[9-11]。……
