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

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.