METHOD FOR PRODUCING ULTRA-PURE ALGINATES

摘要

The present invention relates to a method for obtaining a composition of ultra-pure alginate, wherein said method comprises the following steps: extracting a material consisting of algae or raw alginate using a complexing agent in a solution; allowing the cellular constituents and the particles contained in the solution to settle; filtering the solution; precipitating the alginate contained in the solution and recovering the precipitated alginate. An alginate composition in the form of a mixed polymer consisting of mannuronic and guluronic acids has a ratio between the mannuronic acid and the guluronic acid of about 1 to 90 % and an average molecular weight of 1000 kD or above.