The use of an acyl exchange reaction between an esterified polysaccharide and a polyaminated or polyhydroxylated material for the production of microparticles, the microparticles thus obtained, a process for their preparation and compositions containing the same (UTILIZATION OF A TRANSACYLATION REACTION BETWEEN AN ESTERIFIED POLYSACCHARIDE AND POLYAMINATED OR POLYHYDROXYLATED SUBSTANCE FOR FABRICATING MICROPARTICLES, MICROPARTICLES THUS OBTAINED, METHODS AND COMPOSITIONS CONTAINING THEM)

摘要

The present invention relates to microparticles, in particular microcapsules, and their preparation. The microparticles, and in particular the microcapsules described above, are characterized in that they have a wall composed of the product between the polysaccharide with esterified carboxyl group and the polyaminated or polyhydroxylated material, in particular through the acyl exchange reaction . Such fine particles or microcapsules are useful for the production of cosmetic, pharmaceutical or food compositions.