Patent ID: 6143533
Filing Date: 2000-11-07
Classification: C12P

Abstract:
A method for the preparation of N-glycolyl neuraminic acid which comprises the steps of:(a) dispersing tissues of an echinodermatous marine animal having a zoological name of Cucumara echinata in an aqueous medium to form an aqueous suspension;(b) proteolytically decomposing the tissues of the echinodermatous marine animal by the addition of a protease to the aqueous suspension to give an aqueous solution of N-glycolyl neuraminic acid isolated and solubilized by proteolytic decomposition containing polypeptides as a by-product;(c) removing the polypeptides from the aqueous solution of N-glycolyl neuraminic acid; and(d) separating the N-glycolyl neuraminic acid from the aqueous solution.