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Continuous countercurrent extraction method of pectin in Chinese medicine residue by microwave

A technology for countercurrent extraction and traditional Chinese medicine dregs is applied in the field of extracting pectin from traditional Chinese medicine dregs by using microwave continuous countercurrent extraction technology, which can solve the problems of polluted land and groundwater, low effective utilization rate, occupation of land resources, etc. The effect of controlling and reducing production costs

Inactive Publication Date: 2013-07-17
安徽亿源生物工程有限公司
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AI Technical Summary

Problems solved by technology

Since the current development of traditional Chinese medicine dregs is still very limited, it has been treated as waste dumping, landfilling or incineration, resulting in high resource consumption and low effective utilization rate.
Because of the different degrees of pollution to the environment, enterprises have to invest a lot of money every year to deal with it, which not only takes up a lot of land resources, pollutes the land and groundwater, but also causes a waste of resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Take 100g of traditional Chinese medicine residue, add 1g of cellulase (endoglucanase and exoglucanase each account for 50%), 0.1g of cellulose degrading bacteria (cellulosophila and Trichoderma each account for 50%) to add 40% Degrade at ℃ for 30min, remove residual cellulose, centrifuge, collect the centrifuged product, add 1000ml of water to make a suspension with a material-to-liquid ratio of 1:10, adjust the pH to 2.0, and use microwave extraction to extract pectin: microwave power is 640W, Extraction temperature is 55℃, extraction for 15 minutes, centrifugation, microfiltration (filter hole is 0.8μm), take the supernatant, then ultrafiltration and concentrate to a water content of 15%, remove small molecules and pigment impurities, add to the concentrate Ethanol, make the alcohol concentration 75%, fully stir, wash and centrifuge, collect the centrifugal product, namely pectin, and vacuum dry to obtain 8g of dried pectin. Test by the anthrone sulfate method, obt...

Embodiment 2

[0021] Take 100g of traditional Chinese medicine residue, add 2.5g cellulase (endoglucanase and exoglucanase each account for 50%), 0.5g cellulose degrading bacteria (cellulosophila and Trichoderma each account for 50%) in Degrade at 50°C for 30 minutes, remove residual cellulose, centrifuge, collect the centrifuged product, add 500ml of water and 500ml of ethanol to make a suspension with a material-to-liquid ratio of 1:10, adjust the pH to 2.0, and extract pectin by microwave extraction: microwave Power is 600W, extraction temperature is 60℃, extraction for 15 minutes, centrifugation, microfiltration (filter pore is 0.8μm), take the supernatant, and ultrafiltration to concentrate to a water content of 12%, to remove small molecules and pigment impurities, Add ethanol to the concentrated solution to make the alcohol concentration 75%, stir thoroughly, wash and centrifuge, collect the centrifuged product, namely pectin, and vacuum dry to obtain 11g of dried pectin. Tested by the...

Embodiment 3

[0023] Take 100g of traditional Chinese medicine residue, add 5g of cellulase (endoglucanase and exoglucanase each account for 50%), 1g of cellulose degrading bacteria (cellulosophila and Trichoderma each account for 50%) at 45℃ Degrade for 30 minutes, remove residual cellulose, centrifuge, collect the centrifuged product, add 500ml of water and 500ml of ethanol to make a suspension with a material-to-liquid ratio of 1:10, adjust the pH to 4.0, and extract pectin by microwave extraction: microwave power is 850W, extraction temperature is 45℃, extraction for 20 minutes, centrifugation, microfiltration (filter pore is 0.8μm), take the supernatant, and ultrafiltration to concentrate to a water content of 10%, remove small molecules and pigment impurities, to concentrate Add ethanol to the mixture to make the alcohol concentration 75%. Stir thoroughly, wash and centrifuge, collect the centrifuged product, namely pectin, and dry it under vacuum to obtain 12g of dried pectin. Tested b...

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Abstract

The invention discloses a continuous countercurrent extraction method of pectin in Chinese medicine residue by microwave. The method includes: adding cellulase and cellulose degrading bacteria into raw Chinese medicine residue to degrade cellulose, centrifuging, collecting centrifuged material, adding the centrifuged material into a microwave continuous countercurrent extraction tank unit, regulating pH to the acid value, and performing microwave extraction; centrifuging, micro-filtering, subjecting supernate to ultrafiltration and concentration, removing micromolecules and coloring impurities, adding ethanol into concentrated solution to keep the ethanol concentration to be 75%, performing full mixing, cleaning and centrifuging, collecting the centrifuged material, namely pectin, and drying the pectin. The method has the advantages that the production cost is lowered, product quality is increased, industrial operation is facilitated, the limits on traditional extraction and production of pectin materials in Chinese food industry can be eliminated, and production scale of pectin is enlarged.

Description

technical field [0001] The invention relates to a method for extracting pectin, in particular to a method for extracting pectin in traditional Chinese medicine dregs by utilizing microwave continuous countercurrent extraction technology. Background technique [0002] my country is a big country in the use of traditional Chinese medicine, and a large amount of traditional Chinese medicine residue is discharged every year, about more than 15 million tons. Since the current development of traditional Chinese medicine dregs is still very limited, it has been treated as waste, landfilled or incinerated, resulting in high resource consumption and low effective utilization rate. Because of the different degrees of pollution to the environment, enterprises have to invest a lot of money to deal with it every year, which not only takes up a lot of land resources, pollutes the land and groundwater, but also causes a waste of resources. Studies have found that some traditional Chinese ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/06
Inventor 李恒勇李大伟郭芳何利影周光姣夏成凯
Owner 安徽亿源生物工程有限公司
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