Extraction and separation method for rhubarb willow leaf flavone component

Abstract

The invention discloses an extracting separating method of flavone from rheum officinale Cynanchum, which is characterized by the following: affirming extracting condition through alcohol; setting the extracting quantity of ether and water stature butanol; comparing the relationship of flavone structure with silica gel thin-layer chromatography, gluglucosan gel thin-layer chromatography and polyamide thin-layer chromatography; affirming the approximate flavone compound to high-effective chromatographic separating purifying structure.

Description

technical field

[0001] The invention belongs to a method for extracting and separating natural products, and mainly relates to a method for extracting and separating flavonoids from rhubarb willow leaves, which uses polyamide combined with high-performance liquid chromatography to extract and separate the flavonoids from rhubarb willow leaves, a unique plant of the genus Salix in Changbai Mountain. Background technique

[0002] There are more than 500 species of Salix in the whole world, and there are more than 210 species of Salix in my country alone. Willow has a long history in folk medicine. Li Shizhen recorded in "Compendium of Materia Medica": Willow is the lower grade of this classic, its nature is bitter and cold, and it is non-toxic. [3] . Willow is used as medicine mainly based on the root and fibrous root (willow root), branch (willow branch), bast of root (willow bark), leaf (willow leaf), flower (willow flower) of weeping willow (Salix babylonica L.), And hai...

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