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Method for recovering saponin from saponin mother solution

A technology of saponin and mother liquor, applied in the direction of steroids, organic chemistry, etc., can solve problems such as high viscosity of mother liquor, pollute the environment, and no treatment method has been found, and achieve the effect of reducing pollution and saving natural resources

Inactive Publication Date: 2013-04-03
湘西自治州奥瑞克医药化工有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition to 5-30% saponin, the mother liquor also contains a large amount of vegetable oil, pigment, gum and other impurities. In production, the mother liquor is generally added to the raw materials for repeated application, but this will cause more impurities to accumulate. The viscosity of the mother liquor is increasing, which affects the yield and quality of saponin products
However, the content of saponin in the mother liquor is high. If it is discarded, it will not only waste precious natural resources, but also pollute the environment.
In recent years, domestic saponin production enterprises have tried to process and utilize the mother liquor, but they have not found a better treatment method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Weigh 100 kg of saponin mother liquor jelly (the saponin content is 33.9% as detected by high performance liquid phase method). Add 300 kg of compound degreasing solution, heat to 95°C, stir for one hour, suction filter while hot, rinse with 200 liters of deionized water until the water is neutral. The solids were dried and pulverized to obtain 35.8 kg of the product, with a melting point of 197-201°C and a saponin content of 95.3% as detected by HPLC. The recovery rate of saponin was 100.6%.

Embodiment 2

[0014] Weigh 100 kilograms of saponin mother liquor jelly (the saponin content is 27% as detected by high performance liquid phase method). Add 200 kg of compound degreasing solution, heat to 95°C, stir for one hour, suction filter while hot, rinse with 180 liters of deionized water until the water is neutral. The solids were dried and pulverized to obtain 31.4 kg of the product, with a melting point of 193-199°C and a saponin content of 86.2% as detected by HPLC. 27 kg of the product was obtained by recrystallization with acetone, the detected melting point was 200-205 degrees Celsius, and the saponin content was 98.2% as detected by HPLC. The recovery rate of saponin was 98.3%.

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Abstract

The invention provides a method for recovering saponin from a saponin mother solution. The method comprises the steps of adding a compound degreasing solution two to three times the weight of concentrated jelly of the saponin mother solution into the concentrated jelly of the saponin mother solution, heating to 90-100 DEG C, stirring till the jelly is completely dispersed and shaped like paste, carrying out suction filtration while hot, washing by using hot water till the pH (potential of Hydrogen) value is neutral, drying the solid matter and obtaining the product. The method provided by the invention has the advantages that the saponin can be effectively extracted from the saponin mother solution; the recovery rate of the saponin in the saponin mother solution can be up to more than 98%; the natural resource is saved; and the environmental pollution is reduced.

Description

technical field [0001] The invention relates to a method for recovering saponin from saponin mother liquor. Background technique [0002] In the production process of turmeric saponin, the jelly after saponin extraction and crystallization is called mother liquor. In addition to 5-30% saponin, the mother liquor also contains a large amount of vegetable oil, pigment, gum and other impurities. In production, the mother liquor is generally added to the raw materials for repeated application, but this will cause more impurities to accumulate. The viscosity of the mother liquor is increasing, which affects the yield and quality of saponin products. However, the content of saponin in the mother liquor is high. If it is discarded, it will not only waste precious natural resources, but also pollute the environment. In recent years, domestic saponin production enterprises have tried to process and utilize mother liquor, but they have not found a better treatment method. Contents ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07J71/00
Inventor 冉茂元李灵玉
Owner 湘西自治州奥瑞克医药化工有限责任公司