Glehniae radix extraction method

Abstract

The invention provides a glehniae radix extraction method. The glehniae radix extraction method includes the following operation steps: (1) glehniae radix roots go through rinsing, sun-drying and smashing, and then undergo vacuum drying to achieve a balance weight; (2) the dried glehniae radix roots are placed in a Soxhlet extractor, extraction is carried out for 4 to 6 hours after cyclohexane is added, and the cyclohexane is volatilized; (3) deionized water is added, and heated digestion is carried out for 2 to 3 hours after the glehniae radix roots are soaked at the room temperature for 2 to 4 hours; (4) an extracting solution is then obtained through centrifugal separation, residues are squeezed within a pressure range of 25 to 30 MPS to obtain juice, the juice is combined with the extracting solution after juicing is completed, and the herb residues are reserved for later use; (5) the herb residues are taken out, water is added to wash the herb residues for multiple times, and an obtained washing solution is further combined with the extracting solution obtained through (4), so as to obtain a glehniae radix extracting solution; (6) the extracting solution obtained after the combination goes through vacuum concentration, absolute ethyl alcohol is added into a concentrated solution to obtain precipitates, and the precipitates are placed in a refrigerator and stand overnight; the precipitates go through suction filtration, sedimentation, double washing respectively and successively by 95 percent ethyl alcohol, absolute ethyl alcohol and acetone, and vacuum drying, so as to obtain glehniae radix polysaccharide.

Description

Technical field [0001] The invention belongs to the field of separation and purification of natural products, and in particular relates to an extraction method of Adenophora radiata. [0002] Background technique [0003] Glehniae Radix (Glehniae Radix), also known as Laiyang Adenophora, Sea Adenophora, and Liao Adenophora, is the dried root of Glehnia littoralis Fr. Schmidt ex Miq. This product is sweet in nature, slightly bitter in taste, and slightly cold. It belongs to the lungs and stomach meridians. It has the effects of nourishing yin, clearing the lungs, replenishing the stomach and producing body fluid. Chinese medicine is commonly used in clinical practice. In addition to medicinal use, it can also be used to develop health foods. Adenophora adenophorum mainly contains coumarins and carbohydrates. Others include volatile oils, alkaloids, phospholipids, amino acids, trace elements, etc. Polysaccharides are the main active ingredients, which can effectively enhance the b...

AI Technical Summary

Problems solved by technology

The above-mentioned reflux method extraction is a more common method used in factory production, but its extraction temperature is relatively high, resulting in high energy consumption and high paste yield, which brings troubles to the post-processing of preparation preparation and increases production costs.