Patent ID: 6028191
Filing Date: 2000-02-22
Classification: C08B

Abstract:
A method of obtaining a sulfated polysaccharide comprising:a) adding to a volume of a reaction mixture V1, which comprises of crude fucan originating from algae of Phaeophyceae at a concentration of 5 mg/mL to 100 mg/mL and a metallic catalyst, a volume of V2 which comprises of a solution of hydrogen peroxide at a concentration of 5% to 30% by volume, wherein the addition is conducted continuously with stirring for 0.5 hours to 10 hours at a rate per minute of V1/1000 to V1/10 and wherein the reaction mixture is maintained at a pH of 6 to 8 by continuous addition of sodium hydroxide, and is conducted at a temperature of 40.degree. to 70.degree. C.; andb) collecting the sulfated polysaccharide.