| abstract |
Chitosan-allicin is shell, starch, resveratrol and alpha-amylase are the double-layer sustained release microcapsule preparation method of kernel, include the following steps: (1) starch, resveratrol, ginsenoside Rb1 and high-temperatureα-amylase mixing, and mixture moisture content is adjusted, it is squeezed by single screw rod or twin (double) screw extruder.(2) extrudate is dried under vacuum to constant weight, pulverizes sieving, makes granularity between 50 between 200um.(3) after chitosan solution adjusts Ph with ammonium bicarbonate soln, allicin is added, mixed with step (2) obtained powder and is spray-dried to obtain microcapsules.This method can curing activity substance ginsenoside Rb1 and resveratrol, and improve its stability.Chitosan and allicin coating can play the role of antibacterial sustained release, and high-temperatureα-amylase then can be improved the release rate of active constituent, improve its utilization rate.The microcapsule preparation process is simple, can be used for the preparation of health slow-release microcapsule. |