The invention relates to a moisture absorbing humectant of polysaccharides and a preparation method, belonging to the fields of daily chemicals and medical industry; wherein, carboxymethyl hyaluronic acid is adopted for the moisture absorbing humectant; the preparation method comprises steps as follows : 1 to 5-hour reaction is carried out for the hyaluronic acid swollen in alkaline isopropyl alcohol solution and the chloroacetic acid with a molar mass ratio between 1 to 6 and 1 to 4 in the excessive alkaline isopropyl alcohol solution under temperatures between 35 and 75 DEG centigrade, and then pumping filtration and drying are carried out to acquire the moisture absorbing humectant. With the carboxymethyl hyaluronic acid acquired through effective synthesis, the production cost hardly increases, while the moisture absorption and maintaining performance is remarkably improved, so as to enhance the activity and indirectly reduce the production cost. By adopting the carboxymethyl hyaluronic acid with better moisture absorption and maintaining performance than that of the hyaluronic acid as the moisture absorbing humectant, the preparation method for moisture absorbing humectant of polysaccharides has the advantages of low cost and high yielding.
; 苗凤萍
修改评论