Patent ID: 9381250
Filing Date: 2016-07-05
CPC Classification: A61K,A61L,A61P,C08B,Y10T

Claim Text:
1. A method for preparing beads comprising the following steps: a) preparing an alkaline aqueous solution comprising at least one polysaccharide and a cross linking agent; b) dispersing said alkaline aqueous solution into an hydrophobic phase in order to obtain a water-in-oil (w/o) emulsion; c) transforming the w/o emulsion into beads by placing said w/o emulsion at a temperature from about 4° C. to about 80° C. for a sufficient time to allow the cross-linking of said at least one polysaccharide; d) submerging said beads into an aqueous solution; and e) washing said beads; wherein, said polysaccharide is selected from the group consisting of dextran, pullulan, agar, alginic acid, starch, hyaluronic acid, inulin, heparin, fucoidan, chitosan and mixtures thereof; and step b) is performed in the absence of surfactant.