Isatis root pre-treatment method for fermenting extraction of isatis root polysaccharide

Abstract

The invention relates to an extraction method in the technical field of traditional Chinese medicines, in particular to an isatis root pre-treatment method for fermenting extraction of isatis root polysaccharide. The isatis roots are crushed by means of fluid energy milling, so that the isatis root structure can be more fined and extraction of polysaccharide is not affected; by damaging the mechanical supporting wall membrane structures of the isatis roots, polysaccharide can be more fully dissolved in later stage. Steam explosion is carried out for pre-treatment. High-temperature saturated steam quickly permeates into the cell tissues of the isatis roots and component separation and structure change of raw materials are achieved by moment decompression, so that the cell tissues of the isatis roots are damaged; interconnection among fiber bundles is damaged, so that cell walls are broken to form smooth porous structures; the fiber bundles are separated, and the cell walls are broken, so that the functional components wrapped in the fiber bundles or cells are released, the mass transfer ability is obviously reduced, and therefore, a purpose of increasing the polysaccharide extraction ratio is achieved.

Description

technical field

[0001] The invention relates to an extraction method in the technical field of traditional Chinese medicines, in particular to a pretreatment method for isatidis root polysaccharides fermented and extracted from isatidis. Background technique

[0002] Banlangen, also known as indigo root, blue indigo root, and indigo root, is the dried root of the cruciferous plant Isatis indigo. It has the effects of clearing away heat and detoxifying, cooling blood and relieving sore throat. Freckles, mumps, rotten throat Dansha, big head plague, erysipelas, carbuncle, etc. As a typical representative of antiviral traditional Chinese medicine in my country, Banlangen is the first Chinese medicine research project funded by the National Institutes of Health.

[0003] Polysaccharides are a class of biological macromolecules with complex structures, which are composed of multiple monosaccharide molecules connected by glycosidic bonds, and are widely distributed in natural med...