Process for the preparation of an extract of active principles in the form of microgranules of soluble dietary fibres fully aimed at various shapes herbal products

摘要

The invention concerns a method for preparing an extract of at least one active principle in the form of completely soluble dry microgranules, consisting in: first, preparing an extract of an active principle in a solvent medium; then, depositing said extract on the internal and external walls of a microporous carrier insoluble in the solvent medium, in the form of microgranules with specific surface area of at least 0.50 m2/g; and in drying the resulting impregnated granular carrier; then, in coating the microporous carrier impregnated walls with a film forming polymer. The invention is characterised in that the microporous carrier consists of a soluble dietary fibre, based on a polymer selected from the group comprising inulin and oligo-fructose or fructo-oligosaccharides, on their own or mixed.