Abstract: A pullulan empty hard capsule and a preparation method therefor. The empty hard capsule includes the following components: 82-89 wt % of pullulan having a pH of 6-7, 1-1.4 wt % of gelling agent, 0.8-1.4 wt % of coagulant aid, 0.01-0.04 wt % of humectant, 0.01-0.04 wt % of surfactant, and 10-14 wt % of purified water. The preparation method for the pullulan empty hard capsule includes: weighing the components; dissolving the gelling agent, the coagulant aid, the humectant, the surfactant, a light-screening agent, a food coloring with 80-90° C. purified water, putting the dissolved substances into a gel dissolving barrel, stirring till the gelling agent is dissolved, adding the pullulan having a pH of 6-7 while stirring, after the pullulan is completely dissolved, cooling, preparing a capsule by means of a glue dipping method, and drying.

Abstract: A membrane-forming composition, soft and hard capsules prepared based on the composition and the preparation methods are described. The membrane-forming composition includes pullulan polysaccharide, gellan gum, amino acid moisturizing agent, anti-hygroscopic agent and so on. It is suitable for the fabrication of hard or soft capsules. The membrane-forming composition can gelate without alkali metal ions. It has a high moisture retention rate which makes it not easy to take up moisture and turn soft in high humid environment, and it will not turn yellow during long time storage. Furthermore, the membrane-forming composition is made up of pure natural materials.

Abstract: A membrane-forming composition, soft and hard capsules prepared based on the composition and the preparation methods are described. The membrane-forming composition includes pullulan polysaccharide, gellan gum, amino acid moisturizing agent, anti-hygroscopic agent and so on. It is suitable for the fabrication of hard or soft capsules. The membrane-forming composition can gelate without alkali metal ions. It has a high moisture retention rate which makes it not easy to take up moisture and turn soft in high humid environment, and it will not turn yellow during long time storage. Furthermore, the membrane-forming composition is made up of pure natural materials.