New starch-based composition and process for the production...

Details New starch-based composition and process for the production... New starch-based composition and process for the production...

C - Chemistry, Metallurgy

08

B

C08B 31/02 (2006.01) C08B 31/00 (2006.01) C08B 31/08 (2006.01) C08B 31/16 (2006.01) C09J 103/04 (2006.01)

Patent

CA 2502927

A process for manufacturing transglycosylation products. According to the process, a starch derivative is reacted at acidic conditions with an alkanol containing 1-6 hydroxyl groups and the reaction product is recovered as such or it is subjected to further processing. According to the method, the transglycosylation reaction between the starch derivatives and the alkanol is carried out in a reactive extrusion process, whereby the reaction can essentially be performed in the absence of liquid media at high yield. The invention also relates to new transglycosylation products of starch derivative, containing anions derived from a phosphorus-containing acid, which are chemically bonded to the product.

Procédé de production de produits de transglycosilation. Selon le procédé, un dérivé d'amidon est mis à réagir dans des conditions acides avec un alcanol contenant 1-6 groupes hydroxyle et le produit de la réaction est récupéré en tant que tel ou il est soumis à un autre traitement. Selon le procédé, la réaction de transglycosilation entre les dérivés d'amidon et l'alcanol est mise en oeuvre dans un processus d'extrusion réactive par lequel la réaction peut être exécutée essentiellement en l'absence de milieux liquides à haut rendement. L'invention concerne également de nouveaux produits de transglycosilation de dérivé d'amidon contenant des anions dérivés d'un acide contenant du phosphore, lesquels sont liés chimiquement au produit.

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