METHOD OF PRODUCING PECTIN Russian patent published in 2013 - IPC C08B37/06 

FIELD: chemistry.

SUBSTANCE: invention relates to food industry and can be used in producing pectin from vegetable material. The method involves hydrolysis and extraction of vegetable material in an electromagnetic field, separating the solid and liquid phases, concentrating, depositing pectin and drying the pectin. Hydrolysis and extraction of the vegetable material is carried out with aqueous solution of citric acid and succinic acid at temperature of 80-90°C and pH=2 in an electromagnetic field with frequency of 25-29 Hz for 55-90 minutes. The citric acid and succinic acid are taken in ratio of 3:2, respectively. Further, the material is concentrated to pectin substance concentration of 5% and coagulated with 96% ethyl alcohol for 10 minutes. The coagulate is subjected to infrared drying in a vacuum at pressure of 0.08±0.02 MPa and temperature of 35-40°C to moisture content of the end product of not more than 7%.

EFFECT: invention increases output of pectin and increases complexing capacity thereof.

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