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

FIELD: chemistry.

SUBSTANCE: oyster plant is washed, crushed and then extracted with acid water in phase ratio of 1:1.2, pH 5-6.5, temperature 55-65°C, while periodically releasing pressure in the extraction mixture until the extraction agent boils. The extraction mixture undergoes preliminary processing 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 packed in aseptic conditions.

EFFECT: invention enables reduction of chromaticity of the end product at relatively high conversion of inulin to the end product, as well as reduction of 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.