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Preparation method and application of selenium-enriched cordyceps cicadae polysaccharide

A technology of selenium-enriched Cordyceps polysaccharides, which is applied in the field of preparation of selenium-enriched Cordyceps polysaccharides, can solve the problems of selenium element reduction, complex extraction process, and no patent disclosure, and achieve less loss, improve extraction efficiency, and save energy consumption Effect

Active Publication Date: 2018-07-13
SUN YAT SEN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the currently commonly used polysaccharide extraction process of Cordyceps sinensis is relatively complicated, and after the above-mentioned extraction method is processed, the content of selenium in Cordyceps sinensis is greatly reduced. Therefore, it is necessary to find a better extraction rate, low cost and easy process production. Process that can simultaneously obtain selenium and Cordyceps polysaccharide
So far, there have been no domestic and foreign literature reports on the extraction of selenium-enriched Cordyceps polysaccharides, and no corresponding patent publications

Method used

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  • Preparation method and application of selenium-enriched cordyceps cicadae polysaccharide
  • Preparation method and application of selenium-enriched cordyceps cicadae polysaccharide
  • Preparation method and application of selenium-enriched cordyceps cicadae polysaccharide

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1 A kind of extraction method of selenium-enriched Cordyceps polysaccharide

[0041] 1, extraction method of the present invention

[0042] A method for extracting selenium-rich Cordyceps polysaccharides, comprising the following steps:

[0043] (1) 8Kg of selenium-enriched Cordyceps sinensis is dried in a blast oven at 50° C. for 10 hours, ultrafinely pulverized, and passed through a 100-mesh sieve;

[0044] (2) Using supercritical CO 2 Selenium-enriched Cordyceps polysaccharides were extracted by extraction method: the extraction pressure was 30MPa, the entrainer was 95% ethanol aqueous solution, the flow rate of the entrainer was 3.5mL / min, the extraction temperature was 40°C, and the extraction time was 120min.

[0045] In this example, the mass of the selenium-enriched Cordyceps polysaccharide finally obtained is 6.008Kg, the total extraction rate is 75.1%, and the selenium content is 120mg / Kg.

[0046] 2. Comparative test 1

[0047] The preparation ...

Embodiment 2

[0059] Example 2 A method for extracting selenium-enriched Cordyceps polysaccharide

[0060] A method for extracting selenium-rich Cordyceps polysaccharides, comprising the following steps:

[0061] (1) After drying the selenium-enriched Cordyceps cicadae of 8Kg, ultrafinely pulverize, cross 80 mesh sieves;

[0062] (2) Using supercritical CO 2 The selenium-enriched Cordyceps polysaccharide was extracted by extraction method: the extraction pressure was 40MPa, the entrainer was 35% ethanol aqueous solution, the flow rate of the entrainer was 5mL / min, the extraction temperature was 70°C, and the extraction time was 50min.

[0063] In this example, the mass of the selenium-enriched Cordyceps polysaccharide finally obtained is 5.704Kg, and the total extraction rate is 71.3%. Wherein, the selenium content is 100mg / Kg.

Embodiment 3

[0064] Example 3 A method for extracting selenium-enriched Cordyceps polysaccharide

[0065] A method for extracting selenium-rich Cordyceps polysaccharides, comprising the following steps:

[0066] (1) After drying the selenium-enriched Cordyceps cicadae of 8Kg, ultrafinely pulverize, cross 120 mesh sieves;

[0067] (2) Using supercritical CO 2 The selenium-enriched Cordyceps polysaccharides were extracted by extraction method: the extraction pressure was 10MPa, the entrainer was 75% ethanol aqueous solution, the flow rate of the entrainer was 2.5mL / min, the extraction temperature was 40°C, and the extraction time was 150min.

[0068] In this example, the mass of the selenium-enriched Cordyceps polysaccharide finally obtained was 5.792Kg, and the total extraction rate was 72.4%. Wherein, the selenium content is 110mg / Kg.

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Abstract

The invention discloses a preparation method and application of a selenium-enriched cordyceps cicadae polysaccharide. The preparation method comprises the following steps: step 1, after selenium-enriched cordyceps cicadae is dried, performing ultra-fine crushing, and performing sieving through an 80-120-mesh sieve to obtain selenium-enriched cordyceps cicadae powder; and step 2, performing CO2 supercritical extraction on the selenium-enriched cordyceps cicadae powder to obtain the selenium-enriched cordyceps cicadae polysaccharide. According to the method provided by the invention, through proper drying and crushing, effective active ingredients can be effectively extracted, the effective active ingredients have less loss, operation is simple and easy to implement, and the method has a good effect, high efficiency, low pollution and low costs, and is beneficial to large-scale production; in addition, the method selects reasonable extraction temperature, extraction pressure and extraction time and an entrainer to improve the yield of the selenium-enriched cordyceps cicadae polysaccharide and the selenium content while improving extraction efficiency; and the prepared selenium-enriched cordyceps cicadae polysaccharide has the effect of enhancing a body immunity adjustment function, and the product not only facilitates absorption, but also has good stability.

Description

technical field [0001] The invention belongs to the technical field of health food processing. More specifically, it relates to a preparation method and application of selenium-rich Cordyceps polysaccharide. Background technique [0002] At present, the traditional methods for extracting various polysaccharides mainly include hot water extraction and alcohol precipitation, acid extraction, alcohol extraction, water bath reflux method and ultrasonic extraction. The extraction time and temperature of the acid extraction method are strictly controlled, and the extraction conditions are not easy to control; extraction methods such as hot water extraction and water bath reflux are likely to cause reactions such as oxidation and decomposition of polysaccharides, which greatly affect the biological activity of polysaccharides; these These methods all have the disadvantages of large solvent consumption, environmental pollution, cumbersome operation, and low extraction rate. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/00A61K31/715A61P37/04
CPCA61K31/715C08B37/00C08B37/0003Y02P20/54
Inventor 黄锡山潘亚宏佘志刚李闯彪梅秀丽
Owner SUN YAT SEN UNIV
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