Preparation method for astaxanthin microcapsules

The invention belongs to the technical field of biological products, and relates to a preparation method for astaxanthin microcapsules. The specific process is as follows: uniformly stirring pure gum, maltodextrin and distilled water to prepare wall material solution at first, and then mixing and stirring the wall material solution with a compound emulsifier until the wall material solution is completely emulsified to obtain wall material emulsifier solution; then carrying out a wall-breaking treatment on haematococcus pluvialis spores and then preparing astaxanthin solution by a conventional extraction process, and mixing the astaxanthin solution with vitamin E to obtain astaxanthin oil solution; then mixing and stirring the wall material emulsifier solution with the astaxanthin oil solution until an emulsifier is formed, then homogenizing by a super cell homogenizer, adjusting the temperature of the emulsifier, and then homogenizing by the super cell homogenizer until water-colour oil microcapsules are formed; finally carrying out spray-drying on the water-colour oil microcapsules by a spray dryer until a wall material is condensed, so as to prepare the astaxanthin microcapsules. The preparation method is simple in process, high in product activity, good in application effect, stable in performance, free from the influence of external environment, and high in utilization rate.