METHOD FOR PECTIN PRODUCTION FROM CITRUS REFUSES Russian patent published in 2005 - IPC

FIELD: technology for production of pectin extract from vegetable raw materials.

SUBSTANCE: to decrease pectin losses citrus refuses are subsequently extracted with acetone and mixture of liquid acetylene and carbon dioxide in mass ratio from 3:7 to 7:3 under elevated pressure. When second extract is separated, pressure is discharged up to atmospheric pressure and then hydrolysis-extraction is subsequently carried out in forward flow and backflow with intermediate pressing. As extractants in backflow process water and in forward flow process extract separated after backflow stage are used, respectively.

EFFECT: decreased pectin losses without deterioration of organoleptic characteristics.