METHOD OF PREPARING INULIN-CONTAINING SOLUTION Russian patent published in 2011 - IPC C08B37/18 

FIELD: chemistry.

SUBSTANCE: invention relates to a technique for preparing an inulin-containing solution for food or medical purposes. Scorzonera is washed, crushed and extracted with acid water with separation of the extract in phase ratio of 1:1, pH 5-6.5, temperature 55-65°C for 30-40 minutes and periodic pressure release in the extraction mixture before the extraction agent boils. The extraction mixture undergoes pre-treatment in a microwave field until inactivation of native enzymes. The separated extract is concentrated through reverse osmosis to 15-20% content of dry substances, undergoes photosterilisation and then packed in aseptic conditions.

EFFECT: invention reduces chromaticity of the end product with relatively high conversion of inulin to the end product, reduces energy consumption and ensures shelf life of the end product of not less than 1 year without considerable change of its consumer and technological properties.