Method for recovering saponin from saponin mother solution

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 ...

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