METHOD OF PRODUCING LIQUID PECTIN Russian patent published in 2024 - IPC C08B37/06 

FIELD: food industry.

SUBSTANCE: invention relates to food and processing industry. Method of producing liquid pectin involves washing apple pomace with acidified water, then extraction of pomace with nitric acid solution for 2 hours at temperature of 40 °C with subsequent separation of the extract from apple pomace by centrifugation and collection of the extract. Further, this extract is directed through a membrane unit and concentrated to dry substances of 10-15% in a vacuum evaporator unit. Then pH in the obtained concentrate is normalized to 3-4 using sodium phosphate. Degree of esterification is then standardized using the enzyme pectinesterase with activity of 250 units/g in amount of 0.1% to 0.2% of the weight of concentrate for 20-120 minutes to obtain a degree of esterification from 20 to 68%.

EFFECT: invention enables to obtain pectin with a given degree of esterification for use in the confectionary and dairy industry in liquid form.

1 cl, 3 ex