芦荟活性多糖保护性分离技术研究

Study on protected separation technique of active polysaccharides from aloe（Aloe babadensis Mille）

摘要: 应用自行研制的ACA（Alginate-Chitosan-Alginat e）微胶囊技术体系，考察了芦荟液ACA微胶囊成囊过程及微胶囊24h平衡透析过程中芦荟多糖、芦荟蒽醌类化合物渗透分离情况。结果表明，芦荟液微胶囊化过程及微胶囊24h平衡透析后芦荟多糖总渗出率为27.7%，渗出多糖分子量＜7600；芦荟蒽醌总渗出率为98.3%。在有利于保持活性的条件下，较好地实现了芦荟多糖和芦荟蒽醌两类不同功效成分的分离。

Abstract: Self-designed technique of ACA（Alginate-Chi tosan-Alginate）microencaps ulation was used in the research.The exudation and separation of aloe polysaccharides and anthraquinones were studied in the process of ACA microcapsule formation and 24h equilibrium dialysis.The results show that in the process of ACA microcapsule formation and after 24h equilibrium dialysis，the total exudative rate of aloe polysaccharide is 27.7%，and the molecular weight of aloe polysaccharides exuded is lower than 7600；while the total exudative rate of aloe anthraquinones is 98.3%.Aloe polysaccharides and aloe anthraquinones can be separated in higher quality under that the activity of the components is well preserved.