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A method for extracting sterol compounds from bitter bamboo shoot shells

A technology of sterols and compounds, which is applied in the field of compound extraction, can solve the problems of less operation steps and low yield, and achieve the effect of easy-to-obtain raw materials, high yield and large quantity

Active Publication Date: 2021-06-29
SOUTHWEST UNIVERSITY FOR NATIONALITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And as disclosed in the prior art, the sterols in the extract are crystallized and separated out in the form of solution extraction and low-temperature crystallization of Apocynum twisted flowers. Although the processing steps are less, the yield is low.

Method used

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  • A method for extracting sterol compounds from bitter bamboo shoot shells
  • A method for extracting sterol compounds from bitter bamboo shoot shells
  • A method for extracting sterol compounds from bitter bamboo shoot shells

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Embodiment

[0039] A preferred embodiment of the present invention provides a method for extracting sterol compounds from bitter bamboo shoot shells, the specific steps are as follows:

[0040] Step S1, peel off fresh bitter bamboo shoot shells, dry and pulverize, take 2000g of coarse powder, extract twice with 7 times the amount of 95% ethanol, each time for 12h, combine the two extracts, and concentrate the extracts under reduced pressure to nothing Alcohol, about 120g of extract;

[0041] Step S2, take the extract and add an appropriate amount of distilled water (about 1L) to suspend to obtain an aqueous dispersion, extract with ethyl acetate (about 8L) for 3 times, and recover the solvent to obtain the ethyl acetate extract part and the water phase part;

[0042] Step S3, take the ethyl acetate extract part in a weighed dry round-bottom flask, concentrate under reduced pressure to an extract, weigh to obtain the extract weight (about 40g), dissolve the extract with methanol, and take ...

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Abstract

The invention discloses a method for extracting sterol compounds from bitter bamboo shoot shells. The sterol compounds include: stigmaster-5-ene-3β-ol-7-one, stigmaster-5.22-hydroxy-3β-ol-7 ketone and stigmaster-4-ene-6β-ol-3-one. Using the fresh bitter bamboo shoot shells of the traditional medicinal and edible resources-bitter bamboo as raw materials, after drying and crushing, 95% ethanol extraction, vacuum concentration, ethyl acetate extraction and other steps, column chromatography, thin layer chromatography and preparative liquid chromatography etc., and obtained the above three sterol compounds from the shells of bitter bamboo shoots. The extraction process of the invention is simple, the extraction efficiency is high, and the number of extracted compounds is large, which lays a foundation for the pharmacological research of sterol compounds, enriches the chemical components of bitter bamboo shoot shells, and simultaneously promotes the rational and efficient development and utilization of bitter bamboo resources.

Description

technical field [0001] The invention belongs to the technical field of compound extraction, and in particular relates to a method for extracting sterol compounds from bitter bamboo shoot shells. Background technique [0002] Sterols are an important natural active substance widely present in living organisms, of which phytosterols are an important component. Sterol compounds have strong physiological activity and surface activity, such as anti-inflammation, anti-oxidation, lowering cholesterol, analgesia, lowering blood fat, anti-tumor and protecting gastric mucosa, etc.; sterol and its derivatives are developed by steroid drugs It is an important drug source, and has been widely used in food, feed, cosmetics, agricultural production, chemical industry, textile and other fields, showing good economic and social ecological benefits. Therefore, how to effectively extract sterol compounds from plants to obtain products with higher purity is of great significance for the in-dep...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07J9/00
CPCC07J9/00
Inventor 任艳
Owner SOUTHWEST UNIVERSITY FOR NATIONALITIES
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