Method for extracting polyoses and active principle from cyclocarya paliurus

Abstract

The invention discloses a method for extracting polysaccharide and effective components from cyclocarya paliurus, which comprises the steps as follows: immersing cyclocarya paliurus leaves with hot water, filtering, the filtrate successively passing through two pieces of membrane under the pressure of 0.01 to 0.2MPa, separating the filtrate by the first membrane, concentrating the filtrate, precipitating by ethanol, obtaining big molecular polysaccharide by filtering precipitate; the leaky filtrate passing through the first going through the second membrane, concentrating the filtrate, precipitating with ethanol, obtaining big molecular polysaccharide and small molecular polysaccharide and processing the leaky filtrate to get organic molecules. The other technique of the invention comprises the steps as follows: reflux extracting cyclocarya paliurus with ethanol, concentrating and recycling ethanol, adsorption with macroporous resin after dilution, elution, concentrating and drying, then getting small organic molecular products. Treating the dregs after filtering as the steps of the first technique, the products of big molecular polysaccharide and small molecular polysaccharide can be obtained. The method for extracting polysaccharide and effective components from cyclocarya paliurus has the advantages of simple technology, ability to acquire a plurality of effective components, no pollution of solvent, recyclability, no wastewater and dregs, simple equipment and low investment.

Description

Technical field: [0001] The invention relates to a method for extracting plant active ingredients, in particular to a method for extracting polysaccharides and active ingredients from Cyclocarya paliurus. Background technique: [0002] Cyclocarya paliurus (Batal.) lljinsk is a species of dicotyledonous plants [Dicotyledneae] Juglangdaceae [Juglangdaceae], a rare and unique tall tree plant in my country. Cyclocarya paliurus is rich in polysaccharide substances and active ingredients with hypoglycemic activity. It also contains trace elements chromium, nickel, lithium, selenium and vanadium with insulin-like effects, which can participate in the glucose metabolism of the human body and can also improve the blood sugar of diabetic mice. Glucose tolerance. [0003] At present, the extraction method of the effective components of Cyclocarya paliurus has attracted widespread attention. Chinese patent application No. 87101852 discloses a "method for extracting sweetener from Cyclo...

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Problems solved by technology

[0003] At present, the extraction method of the effective components of Cyclocarya paliurus has attracted widespread attention. Chinese patent application No. 87101852 discloses a "method for extracting sweetener from Cyclocarya paliurus" and Chinese patent application No. 02113548. The method of extracting and separating multiple components from papaya paliurus, these methods are to use different resins to decolorize, remove impurities, absorb active ingredients such as polysaccharides in Cyclocarya paliurus, and then wash them out with organic solvents, concentrate and dry them to obtain products, although they can be separated Cyclocarya paliurus polysaccharides, Cyclocarya flavonoids and other different ingredients, but the yield is low, the product purity is not high, the process is complex, the equipment investment is large, and the product cost is high; and the production process needs to use a large amount of acid and alkali, as well as fatty alcohols, etc. Organic solvents generate a large amount of high-concentration organic wastewater, which needs to be reinvested in treatment, otherwise it will pollute the environment

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