CROSS-LINKED MONOSACCHARIDE AND OLIGOSACCHARIDE PARTICLE, ESPECIALLY MICROPARTICLE OR NANOPARTICLE, THEIR PREPARATION AND COMPOSITION FOR COSMETIC, MEDICINE OR FOOD CONTAINING THEM

摘要

PROBLEM TO BE SOLVED: To obtain particles useful for producing a cosmetic, medicine or food composition. SOLUTION: This particle has a wall at least on the surface. The wall comprises one or more saccharides or oligosaccharides cross-linked by interfacial cross-linking in an emulsion between a saccharide or oligosaccharide containing at least one primary alcohol group and a polyfunctional acylating cross-linking agent, preferably a diacid halide, more preferably a diacid chloride in such a manner as to form an ester bond between an acylatable primary alcohol hydroxy group of monosaccharide or oligosaccharide and an acyl group of a polyfunctional acylating cross-linking agent by interfacial cross-linking in an emulsion preferably at a room temperature.