Method for extracting radix scrophulariae saponin from radix scrophulariae leftovers

Abstract

The invention belongs to the field of extraction of effective ingredients of plants, and discloses a method for extracting radix scrophulariae saponin from radix scrophulariae leftovers. The method comprises the steps that the radix scrophulariae leftovers are dried and smashed; 75% ethyl alcohol is used for soaking the radix scrophulariae leftovers, then 75% ethyl alcohol is used for reflux extraction of radix scrophulariae saponin in the radix scrophulariae leftovers three times, and three times of extraction are combined to obtain a filtrate; a 3 g / mL loading solution is prepared and loaded to HPD100 type macroporous resin for adsorption, water with the volume 10 times that of the loading solution is used for elution, and 50-70% ethyl alcohol with the volume 12 times that of the loading solution is used for elution; a second-time elution solution is collected, and concentration and drying are carried out to obtain the radix scrophulariae saponin powder. The method enables the purification rate of the radix scrophulariae saponin in the radix scrophulariae leftovers to reach more than 90% and has the practical significance in production of radix scrophulariae saponin, leftovers produced in radix scrophulariae production are sufficiently utilized, and the method has the advantages of saving resources, reducing waste, reducing pollution, and achieving environmental production.

Description

technical field [0001] The invention relates to the field of extraction of effective plant components, in particular to a method for extracting crocosides from crocodile scrophulariae leftovers. Background technique [0002] Scrophulariaceae is the dried root of Scrophulariaceae Scrophulariaceae. It is a traditional Chinese medicine commonly used in traditional Chinese medicine. Scrophulariae saponin exists in Scrophulariae Scrophulariae. Clinical trials have proved that the chemical composition has the functions of nourishing yin and reducing fire, detoxifying, relieving throat and nourishing kidney. The effect of yin can be used for febrile diseases, hot blood entering the camp, thirsty tongue, irritability, restless night sleep, confusion, sore throat, red eyes and other symptoms. [0003] In the production of Scrophulariaceae, 70% of the weight of the whole plant of Scrophulariaceae is stems, leaves, flowers, and stem heads (the junction between the aboveground part and ...

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Problems solved by technology

[0003] In the production of Scrophulariaceae, 70% of the weight of the whole plant of Scrophulariaceae is stems, leaves, flowers, and stem heads (the junction between the aboveground part and the root), etc., which are collectively referred to as Scrophulariaceae leftovers. If it is discarded, it will cause waste of resources and pollute the environment after rotting. If it can be used comprehensively, it will not only save resources and reduce pollution, but also provide a series of new products for medicine, health care products and food, which will generate considerable economic benefits and increase participation. Farm income, promote the sustainable development of rural economy

[0004] At present, there are many methods for extracting Scrophulariae saponins from Scrophulariae Radix Scrophulariae, but there is no report on the extraction methods that can obtain Scrophulariae saponins with a purity of more than 90%.

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