Patent ID: 6747015
Filing Date: 2004-06-08
Classification: A23L,A61P,C08B,Y10S

Abstract:
A method of preparing a polymannuronate composition, comprising:providing alginate; hydrolyzing the alginate to form a mixture comprising polymannuronate and polyguluronate, wherein the polymannuronate has a molecular weight ranged from about 4,000 Dalton (Da) to about 500,000 Da, wherein the hydrolysis comprises adding one or more organic acids to the alginate and heating the mixture of the alginate and the organic acid, and wherein the organic acid is selected from the group consisting of citric acid, malic acid, oxalic acid, lactic acid, succinic acid, tartaric acid and acetic acid, wherein the hydrolysis is carried out for about 20 minutes to about 3 hours; and isolating the polymannuronate from the mixture.