Process for preparing a polysaccharide-containing product...

Details Process for preparing a polysaccharide-containing product... Process for preparing a polysaccharide-containing product...

C - Chemistry, Metallurgy

08

B

C08B 30/04 (2006.01) C08B 30/20 (2006.01) C08L 3/12 (2006.01)

Patent

CA 2154254

The present invention provides a process for the manu-facture of a product essentially containing amylose from vegetable materials, in particular from peas. To this end, the flour is mixed with an alkaline decomposing agent, and then a separation into a liquid protein phase and a solid phase containing polysaccharide is performed. The solid phase is then re-suspended and subjected to several sifting steps, followed by at least one washing step and subse-quently a drying step. From such polysaccharide material, in particular from amylose, any kind of moisture-resistent, flexible, and in particular biodegradable articles can be procuded by means of conventional plastics technologies, in particular the injection molding technique. A particular advantage of the present invention resides in the fact that the thermoplastic polysaccharide material, which is pro-duced from renewable raw materials, can also be processed into sheets which in turn can then be worked with conven-tional plastics techniques.

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