Method for extracting light-color soapnut saponin

Abstract

The invention relates to a method for extracting light-color soapnut saponin. The method comprises the following main process steps: crushing 100 - parts of dried soapberry peel by weight into powder with the granularity of 20-80 meshes, adding 100-1000 parts of water, and uniformly stirring at the temperature of 40-80 DEG C; introducing nascent-state hydrogen gas which is newly prepared, maintaining the hydrogen introducing speed to be 2-100ml / min, extracting the solution after 2-15 hours, performing solid-liquid separation, regulating the pH value of the extracting solution to 6.0-10.0, adding 2-10 parts of 35-70 percent hydrogen peroxide for oxidative decoloration for 0.5-2.0 hours; and performing spray drying on the supernatant, thereby obtaining the saponin powder. The prepared soapnut saponin is light in color, low in cost, high-efficiency and environment-friendly.

Description

technical field [0001] The invention provides a method for extracting sapindus saponin, which belongs to the technical field of biochemical product research. Background technique [0002] Sapindus muKorossi Gaerth (Sapindus muKorossi Gaerth), also known as soap tree or hand-washing fruit, is a deciduous tree belonging to Sapindus family Sapindus. It is distributed in Southeast Asian countries, Taiwan Province of my country and the provinces south of the Huaihe River. Sapindus aril is rich in glycosides, mainly triterpene saponins and sesquiterpene glycosides, which have good foaming and decontamination properties, and can be used as natural active substances in shampoos and various It also has physiological effects such as antibacterial and antipruritic, and can be used in the field of biomedicine. The extraction methods of Sapindus Sapindus total saponins mainly include organic solvent extraction and water extraction. The organic solvent extraction method uses organic solv...

AI Technical Summary

Problems solved by technology

Although these methods have obtained Sapindus saponins, because they are in a heated state for a long time in the extraction process, the color of saponins is dark, which seriously affects the color matching effect of the use process, so it is widely used to prepare light-colored sapinsia saponins. The premise of application, there are two main reasons for the darkening of Sapindus saponin. One is because the phenolic hydroxyl and carboxyl groups in its own structure are oxidized to carbonyl or quinone groups under long-term heating conditions, which makes the color darker. The second is that when extracting sapindus saponins, some water-soluble impurities such as sugars are also dissolved, and coking occurs under long-term heating conditions, resulting in deepening of product color