Method for extracting polysaccharides for treating senile hyperlipidemia from black fungus

Abstract

The invention discloses a method for extracting polysaccharides for treating senile hyperlipidemia from black fungus. The method comprises the following steps of A1, crushing the dried black fungus into tiny particles with the particle diameter being 200 to 300 meshes; then, performing soaking for 4 to 5h in warm water at the maintained temperature of 35 to 45 DEG C and the volume being 15 to 20 times; A2, simultaneously putting soaked black fungus and water into a first container for sealing; performing heating treatment for 30 to 40min; enabling the temperature in the first container to reach 50 to 60 DEG C; A3, preparing a second container, wherein the second container is a vacuum container; connecting a pipeline between the first container and the second container; installing a switchvalve on the pipeline; opening the switch valve after the first container and the second container are connected; A4, taking out black fungus and water in the first container and the second container;performing filtering; concentrating the filter liquid; removing protein; performing sedimentation by ethanol; taking precipitates to be dried to obtain agaric polysaccharide. The method has the advantages that the extraction rate of the agaric polysaccharide from the black fungus can be improved; the original activity of the agaric polysaccharide cannot be lowered.

Description

technical field [0001] The invention relates to the technical field of medicine extraction, in particular to a method for extracting and treating senile hyperlipidemia from black fungus. Background technique [0002] Black fungus is one of the important edible fungi in my country. It has multiple health functions such as cooling blood, promoting blood circulation, nourishing qi and strengthening the body. It is an edible and medicinal fungus with high nutritional value. Fungus polysaccharide is one of its main active ingredients. Fungus polysaccharides are composed of monosaccharides such as L-fucose, L-arabinose, D-xylose, D-mannose, D-glucose and glucuronic acid. Salt combination, on the one hand, affects the digestion and absorption of lipids, on the other hand, intervenes in the enterohepatic circulation of bile salts to excrete bile salts from the body, and promotes the continuous conversion of cholesterol in the liver into bile salts, thereby reducing the cholesterol c...

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Problems solved by technology

[0004] At present, the extraction methods of fungus polysaccharide mainly include hot water extraction method, high temperature and high pressure method, acid extraction method, alkali extraction method, microwave extraction method, ultrasonic extraction method, etc., and the extraction rate is about from 0.8% to 28%. Among these extraction methods, the hot water extraction method and the high temperature and high pressure method mainly use cell expansion to change the osmotic pressure inside and outside the cell wall, and dissolve the fungus polysaccharide from it. However, because of the existence of the cell wall, it is generally difficult for the fungus polysaccharide to diffuse out of the cell. The extraction rate of water extraction is only about 15%. Although the extraction rate can reach about 28% by high temperature and high pressure extraction method, high temperature and high pressure can easily make the fungus polysaccharide denature and lose its activity; acid extraction and alkali extraction can easily destroy the polysaccharide. The structure has the disadvantage of reducing its bioavailability; the general extraction rate of ultrasonic extraction wave and microwave extraction method is about 11%.

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