FIELD: food industry.
SUBSTANCE: invention refers to technology of practically indigestible dietary fibres. Method of production of dietary fibres implies mixing of vegetative raw materials with liquid carbon dioxide at pressure above atmospheric, aromatisation by heating in microwave field, depressurisation to atmospheric value, water flushing and drying. Thus depressurisation is carried out at rate providing freezing of carbon dioxide absorbed by raw materials. Flushing is performed with water jet of temperature providing carbon dioxide sublimation.
EFFECT: provides elimination of losses of dietary fibres superdispersed fraction during decontamination.
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