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Herbage plant polysaccharide purification method by utilization of microwave-assisted extraction and integration flocculation technology

A herbal and microwave-assisted technology is applied in the field of extracting and purifying effective components, which can solve the problems of difficulty in adapting to the requirements of modernization of traditional Chinese medicine, long production cycle, and many processes, and achieves the effects of shortening infiltration time, easy operation and low cost.

Inactive Publication Date: 2013-06-05
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional extraction techniques, such as maceration, percolation, decoction, and Soxhlet extraction, generally have disadvantages such as low efficiency, high energy consumption, multiple processes, and long production cycles, which are difficult to meet the requirements of modernization of traditional Chinese medicine.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Extract and purify mulberry polysaccharide from mulberry:

[0019] (1) Pretreat the mulberries with denatured alcohol, grind and sieve.

[0020] (2) Put 5g of mulberry powder in a three-necked flask, add 125mL of deionized water, and irradiate with microwave for 150s (during this process, the microwave extraction is suspended every 30s and cooled for 3min), cooled in air for 5min, and then placed in water Cool for 5 minutes, shake well, filter under reduced pressure, and repeat the extraction 3 times;

[0021] The microwave output power is 650W and the frequency is 2450MHz.

[0022] (3) Concentrate the crude polysaccharide extract obtained in step (2) to a solid-liquid ratio of 1:15, add 16% of ZTC flocculant component B, keep warm for 1 hour, then add 8% component A, keep warm for 3 hour, after centrifugation and filtration, take the filtrate to obtain the polysaccharide extract that removes impurities such as protein;

[0023] The temperature of the water bath cons...

Embodiment 2

[0026] Extracting and purifying polysaccharides from the bark of Albizia Julibrissin:

[0027] (1) Pretreat the bark of Albizia Julibrissin with denatured alcohol, grind and sieve.

[0028] (2) Put 5g of Albizia Julibrissin powder into a three-necked flask, add 100mL of deionized water, and irradiate with microwave for 180s (during this process, the microwave extraction is suspended every 30s, and cool for 3min), cool in air for 5min, and then put Cool in water for 5 minutes, shake well, filter under reduced pressure, and repeat the extraction 3 times;

[0029] The microwave output power is 650W and the frequency is 2450MHz.

[0030] (3) Concentrate the crude polysaccharide extract obtained in step (2) to a solid-to-liquid ratio of 1:10, add 4% of the ZTC flocculant A and component B solutions respectively, centrifuge and filter, and take the filtrate to obtain the removed Polysaccharide extract of impurities such as protein;

[0031] The temperature of the constant tempera...

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Abstract

The invention provides a herbage plant polysaccharide purification method by utilization of a microwave-assisted extraction and integration flocculation technology. The method includes that: step one, crushing herbage plant into powder, and stirring and mixing the power by adding water; step two, placing mixture obtained in the first step into a microwave extraction device, irradiating the mixture for 2-3 minutes through microwave, cooling the mixture, and obtaining extraction solution containing polysaccharide in a pressure-reducing and filtration-extracting mode; step three, concentrating the extraction solution obtained in the second step, adding ZTC flocculant under a certain rotation speed to perform flocculation, filtering and removing impurity floc after the flocculation is finished, and pure polysaccharide solution is obtained. According to the herbage plant polysaccharide purification method by the utilization of the microwave-assisted extraction and integration flocculation technology, a microwave heating technology is adopted, heating is simultaneously performed for interior and exterior of extracted matters, the herbage plant polysaccharide purification method by the utilization of the microwave-assisted extraction and integration flocculation technology is high-efficient, fast, saved in solvent consumption and reduced in energy consumption; and flocculant electricity neutralization and bridge adsorption effects are utilized to remove foreign particles in the extraction solution, cost is low, foreign particle removing rate is high, and obtained products are high in quality.

Description

technical field [0001] The invention relates to a method for extracting and purifying active ingredients from herbs. Background technique [0002] The chemical composition of traditional Chinese medicine is complex, and the content of active ingredients is generally low. Extraction is the most basic and important link in the production of traditional Chinese medicine, and it is also an important topic that researchers of extraction technology pay attention to. [0003] Traditional extraction techniques, such as maceration, percolation, decoction, and Soxhlet extraction, generally have disadvantages such as low efficiency, high energy consumption, multiple processes, and long production cycles, which are difficult to meet the requirements of modernization of traditional Chinese medicine. Therefore, some new extraction and separation technologies have emerged. [0004] Microwave-assisted extraction (Microwave-assisted Extraction, MAE), also known as microwave extraction (Micr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/00
Inventor 韩伟孙晓海张玲玲邱绍兵黄兮吕剑昆
Owner EAST CHINA UNIV OF SCI & TECH
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