Kadsura longipedunculata lignin extract and its preparing method and use

Abstract

The present invention relates to a method for preparing southern schisandra berry lignin extract. Said method includes the following steps: (a), distilling Chinese medicinal material southern schisandra berry by using water for 1-6 hr, (b), filtering to obtain residue; (c), decocting residue for 10-60 min, filtering; (d), using ethyl alcohol aqueous solution to extract residue, every time is 0.5-3 hr, filtering to obtain filtrate; (e), making the obtained filtrate be passed through resin adsorption column to obtain effluent, the described resin is selected from polar macroporous adsorption resin; (f) using ethyl alcohol to make elution to obtain eluent; and (g), combining effluent and eluent to obtain the liquid southern schisandra berry lignin extract.

Description

Extract of southern schisandra lignans and its preparation method and use technical field The invention relates to the field of extraction technology of effective parts of traditional Chinese medicines, in particular to the extraction and preparation method and application of lignan extract from Schisandra chinensis. The present invention also relates to the composition containing the lignan extract of Schisandra chinensis and its application. Background technique Schisandra chinensis is the dry mature fruit of Magnoliaceae Schisandra chinensis and Schisandrasphenanthera. The former is recorded as Schisandra chinensis according to the Chinese Pharmacopoeia in 2000, commonly known as northern Schisandra, and the latter is recorded as southern Schisandra. The chemical composition of southern Schisandra and northern Schisandra is similar, both contain volatile oil and lignans. However, the composition and content of lignans differ between the two. The lignan components of ...

AI Technical Summary

Problems solved by technology

This patent application adopts the steps of supercritical CO2 extraction followed by distillation, vacuum concentration, resin adsorption and ethanol elution, the process is complicated and the cost is high

However, there is no relevant literature report on the isolation and identification of the effective part of Schisandra chinensis for the treatment of insomnia