Chemically modified succinoglycans and industrial compositions comprised thereof
AssigneeRhone-Poulenc Chimie
InventorsMagali Knipper, Michele Raffart, Alain Senechal
Life of this patent
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Abstract
Chemically modified succinoglycan polysaccharides, e.g., acidic or enzymatic hydrolysates, have a reduced content of pyruvic acid and succinic acid structural units relative to the unmodified such succinoglycans, and are well suited, whether in fibrous, powdery or gel state, for use, e.g., as thickening stabilizing or suspending agents, in foodstuff, cosmetic and a variety of other compositions.
Claims7
A process for the preparation of a modified succinoglycan polysaccharide, comprising (a) acidifying an aqueous solution of an unmodified succinoglycan having pyruvic and succinic acid structural units to a pH at least as low as 1.5, (b) aging and optionally stirring said acidified solution, whereby diminishing the viscosity thereof to a minimum threshold, for a period of time to effect the gelation thereof, and (c) recovering a gel thus formed, wherein the modified succinoglycan polysaccharide of the gel has a reduced content of pyruvic and succinic acid structural units relative to the unmodified succinoglycan.
Dependencies are inferred from the claim text.