| Taking alginate and chitosan as the raw material, the technology and effects of the preparation of alginate-chitosan(ACA) bio-microcapsule by the interface-complexation method have been studied. The result has shown that when the reaction temperature of the calcium-alginate gel is 30℃,the reaction time is 20 min, the concentration of alginate, calcium-chlorinate and chitosan are 2.0%, 4.0% and 1.8%, the membrane formation time,membrane overlay time and liquefaction time is 10 min,10 min and 8 min, the ACA bio-microcapsule has good preformance. |