Fucose-containing bacterial biopolymer

摘要

The presently disclosed subject matter concerns a microbial biopolymer comprising fucose in its composition. This biopolymer consists of a polysaccharide comprising fucose, which represents at least 10% of its composition. This fucose-containing polysaccharide also contains non-sugar components, namely, acyl group substituents. This disclosed subject matter also concerns the process for the production of the biopolymer, which is obtained cultivation of the bacterium Enterobacter A47 (DSM 23139), using glycerol or glycerol-rich mixtures as carbon sources. The fucose-containing biopolymer of the presently disclosed subject matter may be used in several industrial applications (e.g. pharmaceutical, cosmetics and agro-food industries) and in the treatment of industrial wastes (e.g. oil and metal recovery).

主权项

1. A composition of purified fucose-containing polysaccharide wherein the fucose-containing polysaccharide comprises
a) an amount of fucose which is at least 10% of the total carbohydrate content of the fucose-containing polysaccharide; b) acyl groups in an amount up to 25% of the dry weight of the polysaccharide, wherein the acyl groups comprise succinate, pyruvate, and acetate, and wherein the amount of pyruvate is up to 5% of the dry weight of the fucose-containing polysaccharide; and c) an amount of glucose which is between 20-70% of the total carbohydrate content of the fucose-containing polysaccharide.