Pullulan is a kind of natural water-soluble polysaccharide, which is
fermented and widely used as food and medicine additives without the
risk of crosslinking reaction of amino acids in gelatin. The appearance of
capsule is crystal clear, release speed is relatively stable, oxygen permea-
bility is low. It¡¯s suitable for transportation and retail terminal storage
with almost unbrittleness at low humidity environment and stable shell
at high temperature.