Biopolymer nanoparticles

Details Biopolymer nanoparticles Biopolymer nanoparticles

C - Chemistry, Metallurgy

08

B

C08B 31/00 (2006.01) C08J 3/12 (2006.01) C08J 3/18 (2006.01) C08J 3/24 (2006.01) C08K 5/07 (2006.01) C08L 3/02 (2006.01)

Patent

CA 2361722

A process for producing biopolymer nanoparticles is described, in which the biopolymer is plasticised using shear forces, a crosslinking agent being added during the processing. After said processing, the biopolymer can be dissolved or dispersed in an aqueous medium to a concentration between 4 and 40 wt.%. This results in starch nanoparticles which are characterised by an average particle size of less than 400 nm.

L'invention concerne un procédé de production de nanoparticules de biopolymère consistant à plastifier ledit biopolymère au moyen de forces de cisaillement, un agent de réticulation étant ajouté en cours de traitement. Après ce traitement, le biopolymère peut être dissous ou dispersé dans un milieu aqueux jusqu'à ce que l'on atteigne une concentration comprise entre 4 et 40 % en poids. Ce procédé permet d'obtenir des nanoparticules d'amidon caractérisées par une granulométrie moyenne inférieure à 400 nm.

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