US 6,720,418 B2 · Derivatized reduced malto-oligosaccharides

Abstract

Disclosed are derivatized malto-oligosaccharides and methods for the preparation thereof. In accordance with the disclosed invention, a malto-oligosaccharide is hydrogenated to thereby obtain a hydrogenated malto-oligosaccharide, and the resulting hydrogenated malto-oligosaccharide is derivatized, such as via oxidation, esterification, etherification, or enzymatic modification. The derivatization of such hydrogenated malto-oligosaccharides results in a surprisingly low level of a formation of by-products and products of degradation. In a particularly preferred embodiment of the invention, a mixture of malto-oligosaccharides is catalytically hydrogenated under reaction conditions suitable to substantially preserve the degree of polymerization (DP) profile of the mixture. The resulting malto-oligosaccharide mixture then is derivatized to form a derivatized malto-oligosaccharide mixture.

Claims15

Dependent claims

A mixture of derivatized malto-oligosaccharide species prepared by a method comprising the steps of:

providing a mixture of a plurality of malto-oligosaccharide species;
catalytically hydrogenating said mixture under hydrogenation conditions suitable to substantially preserve the DP profile of said mixture to thereby obtain a hydrogenated malto-oligosaccharide mixture, wherein (i) at least 80% of the malto-oligosaccharide species in the mixture has a DP greater than 5, and (ii) said mixture is hydrogenated to a DE of essentially zero;
and
derivatizing said hydrogenated malto-oligosaccharide mixture to thereby form said derivatized malto-oligosaccharide mixture.

1 more element

Dependencies are inferred from the claim text.

Derivatized reduced malto-oligosaccharides

Life of this patent

Derivatized reduced malto-oligosaccharides

Life of this patent

Abstract

Claims15