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Method for extracting lycium barbarum polysaccharide through cooperation of ultrasonic waves and surfactant

A technology of surfactants and Lycium barbarum polysaccharides, which is applied in the field of extracting natural product active substances, can solve the problems of reducing the yield of polysaccharides, multiple extractions, and low extraction rates, and achieve good market prospects

Active Publication Date: 2016-10-12
NORTHWEST A & F UNIV +1
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  • Abstract
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AI Technical Summary

Problems solved by technology

But its disadvantage is that it needs multiple extractions during the extraction process, the operation time is long, the extraction rate is low, and it is time-consuming and material-consuming
The lye extraction method not only has a high extraction rate, but also the lye can be recycled to reduce costs. However, during the lye extraction process, the concentration of the lye needs to be effectively controlled. When the alkalinity is strong, it is easy to cause hydrolysis of polysaccharides and destroy the activity of polysaccharides. structure, reducing polysaccharide yield
Enzymatic hydrolysis is a green and efficient extraction technology, which has the advantages of rapidity, mild reaction conditions, and easy control, but its extraction cost is high, which is not conducive to large-scale industrial production

Method used

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  • Method for extracting lycium barbarum polysaccharide through cooperation of ultrasonic waves and surfactant

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Experimental program
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Effect test

Embodiment 1

[0024] A method for extracting Lycium barbarum polysaccharides with ultrasonic waves and surfactants, comprising the steps of:

[0025] Step 1, drying wolfberry slag, pulverizing with a pulverizer to obtain wolfberry powder;

[0026] Step 2, add an aqueous solution of a surfactant with a mass percent concentration of 0.8% to the wolfberry powder obtained in step 1 at a mass volume ratio of 1:20 (g / ml), soak at room temperature for 3 hours, and obtain a feed solution;

[0027] Step 3, ultrasonically extracting the feed liquid obtained in step 2, ultrasonically extracting wolfberry residue 3 times at an ultrasonic power of 200w, each time for 20 minutes, and combining the filtrates to obtain a wolfberry polysaccharide extract;

[0028] In step 4, the wolfberry polysaccharide extract obtained in step 3 is filtered through a 250-mesh 5-layer nylon mesh to remove wolfberry seeds and insoluble matter;

[0029] In step 5, the wolfberry polysaccharide extract after removing wolfberry...

Embodiment 2

[0038] A method for extracting Lycium barbarum polysaccharides with ultrasonic wave and surfactant, is characterized in that: it comprises the steps:

[0039] Step 1, drying wolfberry slag, pulverizing with a pulverizer to obtain wolfberry powder;

[0040] Step 2, add an aqueous solution of a surfactant with a mass percentage concentration of 1.0% to the wolfberry powder obtained in step 1 at a mass volume ratio of 1:25 (g / ml), soak at room temperature for 4 hours, and obtain a feed solution;

[0041] Step 3, ultrasonically extracting the feed liquid obtained in step 2, ultrasonically extracting wolfberry residue 3 times at an ultrasonic power of 250w, each time for 25min, and combining the filtrates to obtain a wolfberry polysaccharide extract;

[0042] In step 4, the wolfberry polysaccharide extract obtained in step 3 is filtered through a 300-mesh 5-layer nylon mesh to remove wolfberry seeds and insoluble matter;

[0043] In step 5, the wolfberry polysaccharide extract aft...

Embodiment 3

[0052] A method for extracting Lycium barbarum polysaccharides with ultrasonic wave and surfactant, is characterized in that: it comprises the steps:

[0053] Step 1, drying wolfberry slag, pulverizing with a pulverizer to obtain wolfberry powder;

[0054] Step 2, add an aqueous solution of a surfactant with a mass percent concentration of 1.2% to the wolfberry powder obtained in step 1 at a mass volume ratio of 1:30 (g / ml), soak at room temperature for 5 hours, and obtain a feed solution;

[0055] Step 3, ultrasonically extracting the feed liquid obtained in step 2, ultrasonically extracting wolfberry powder 3 times at an ultrasonic power of 300w, each time for 30min, combining the filtrates to obtain a wolfberry polysaccharide extract;

[0056] In step 4, the wolfberry polysaccharide extract obtained in step 3 is filtered through a 350-mesh 5-layer nylon mesh to remove wolfberry seeds and insoluble matter;

[0057] In step 5, the wolfberry polysaccharide extract after remov...

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Abstract

The invention relates to a method for extracting lycium barbarum polysaccharide through cooperation of ultrasonic waves and a surfactant. The method comprises the steps that lycium barbarum of poor quality or lycium barbarum residues are dried in air and smashed through a smashing machine to obtain lycium barbarum powder; the lycium barbarum powder is added into a surfactant water solution with the mass percentage concentration of 0.8-1.2% according to the mass-to-volume ratio of 1:20-30, mechanical stirring is achieved for dissolving, soaking is carried out for 3-5 h at the room temperature, and feed liquid is obtained; the feed liquid is subjected to ultrasonic extraction, lycium barbarum powder is subjected to ultrasonic extraction for 3 times at the ultrasonic powder of 200-300 w, each extraction is kept 20-30 min, filtrates are combined, and a lycium barbarum polysaccharide extracting solution is obtained; filtration is carried out through a 250-350-mesh five-layer nylon net to remove lycium barbarum seeds and insoluble substance, standing is conducted for 24 h, supernatant is collected, and residues are discarded; filtration is carried out through the 250-350-mesh five-layer nylon net to remove residues, and lycium barbarum polysaccharide clean liquid is obtained; the volume is concentrated to be quarter, 3-5-fold absolute ethyl alcohol is added, and standing is carried out for 24 h; suction filtration is carried out, filtrate is abandoned, and insoluble substance is obtained; ethyl alcohol is removed, forced air drying is carried out at 60 DEG C, and lycium barbarum polysaccharide is obtained. The method has the advantages of being high in extracting efficiency, simple in steps, convenient to operate, free of pollution and nonhazardous.

Description

technical field [0001] The invention relates to a method for extracting natural product active substances, in particular to a method for extracting Lycium barbarum polysaccharides with ultrasonic waves and surfactants. technical background [0002] Lycium barbarum is the mature fruit of Lycium barbarum, a deciduous shrub of the Solanaceae family. As early as in the "Compendium of Materia Medica", there are relevant records. my country's Ministry of Health officially announced in 1988 that wolfberry is both food and medicine. Lycium barbarum polysaccharide is one of the main active components of wolfberry, and its content is an important indicator reflecting the quality of wolfberry. It has various pharmacological and physiological functions such as enhancing immunity, anti-tumor, anti-oxidation, anti-aging, lowering blood fat and blood sugar. In recent years, Lycium barbarum polysaccharide has attracted more and more attention from domestic and foreign scholars. Since the...

Claims

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Application Information

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IPC IPC(8): C08B37/00
CPCC08B37/0003C08B37/006
Inventor 孟昭军文沛瑶李秀信张鹏熊建成刘卫波孟敏丽马金萍丁生艳李莹徐怀德
Owner NORTHWEST A & F UNIV
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