Method for extracting plant flavone from fig leaves

A technology of fig leaves and flavonoids, applied in plant raw materials, chemical instruments and methods, plant/algae/fungus/moss components, etc., can solve the problem of no extraction of flavonoids, etc., achieve good application prospects, simple process, and easy automatic operation Effect

Inactive Publication Date: 2017-03-15
FOSHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, macroporous resin purification technology has been used to separate and purify the total flavonoids of vine tea, total flavonoids of waxberry leaves, and total flavonoids of Senecio, and a good purification effect has been achieved, but there is no research on the extraction of flavonoids from fig leaves

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The invention provides a method for extracting plant flavonoids from fig leaves, using fig leaves as raw materials, comprising the following steps:

[0021] 1) Raw material pretreatment: after the fig leaves are picked, the dust and impurities on the surface are washed away with water, and dried to a water content of 8wt% by using the "closed-loop dehumidification-heat pump drying" technology;

[0022] 2) Reflux degreasing: put dried fig leaves and petroleum ether (5 times the mass of dried fig leaves) in the extractor of the reflux device, under the condition of 70°C, reflux until the sample is colorless, cool to room temperature, filter, and recover petroleum Ether, and the filter residue was dried at 60°C to obtain defatted fig leaves, which were then pulverized and passed through a 20-mesh sieve to obtain defatted fig leaf powder;

[0023] 3) Alkaline extraction and acid precipitation method to extract total flavonoids: add water 11 times the mass of defatted fig le...

Embodiment 2

[0027] The invention provides a method for extracting plant flavonoids from fig leaves, using fig leaves as raw materials, comprising the following steps:

[0028] 1) Raw material pretreatment: after the fig leaves are picked, the dust and impurities on the surface are washed away with water, and dried to a water content of 7wt% by using the "closed-loop dehumidification-heat pump drying" technology;

[0029] 2) Reflux degreasing: put the dried fig leaves and petroleum ether (6 times the quality of the dried fig leaves) in the extractor of the reflux device, under the condition of 60°C, reflux until the sample is colorless, cool to room temperature, filter, and recover the oil Ether, and the filter residue was dried at 60°C to obtain defatted fig leaves, which were then pulverized and passed through a 20-mesh sieve to obtain defatted fig leaf powder;

[0030] 3) Alkaline extraction and acid precipitation method to extract total flavonoids: add water 9 times the mass of defatte...

Embodiment 3

[0034] The invention provides a method for extracting plant flavonoids from fig leaves, using fig leaves as raw materials, comprising the following steps:

[0035] 1) Raw material pretreatment: after the fig leaves are picked, the dust and impurities on the surface are washed away with water, and dried to a water content of 6.5 wt% by using the "closed-loop dehumidification-heat pump drying" technology;

[0036] 2) Reflux degreasing: put dried fig leaves and petroleum ether (7 times the mass of dried fig leaves) in the extractor of the reflux device, under the condition of 60°C, reflux until the sample is colorless, cool to room temperature, filter, and recover oil Ether, and the filter residue was dried at 60°C to obtain defatted fig leaves, which were then pulverized and passed through a 20-mesh sieve to obtain defatted fig leaf powder;

[0037] 3) Alkaline extraction and acid precipitation method to extract total flavonoids: add water 10 times the mass of defatted fig leaf po...

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PUM

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Abstract

The invention provides a method for extracting plant flavone from fig leaves. The method comprises the steps of using the fig leaves as a raw material, and obtaining a flavonoid compound rutin competitive product after closed loop dehumidification-heat pump drying, backflow degreasing, alkali dissolution and acid deposition, and macroporous resin purification. According to the method for extracting plant flavone from the fig leaves, the obtained flavonoid compound rutin competitive product is high in flavonoid content; meanwhile, the technology is simple, yield is high, the production cost is low, and the flavonoid compound rutin competitive product is very suitable for industrial production; besides, the extraction method saves energy and guarantees efficiency, automatic operation is easy through the extraction method, and therefore the flavonoid compound rutin competitive product has a good application prospect.

Description

technical field [0001] The invention relates to the technical field of medicine production, in particular to a method for extracting plant flavonoids from fig leaves. Background technique [0002] Fig is a flowering plant belonging to the genus Moraceae, which mainly grows in tropical and temperate regions. It is a subtropical deciduous small tree. The fruit is bulbous and has a small hole in the tail. In addition to fresh food and medicinal purposes, figs can also be processed into dried, preserved fruit, jam, fruit juice, fruit tea, fruit wine, beverages, canned food, etc. Dried figs are free of any chemical additives and have a rich, sweet taste. Fig juices and beverages have a unique fragrance and are suitable for both young and old. Fig tree has luxuriant branches and leaves, elegant tree shape, good ornamental value, and is a good ornamental tree species for garden and garden greening. Figs have a certain medicinal value, invigorating the stomach and clearing the in...

Claims

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Application Information

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IPC IPC(8): A61K36/60C07H17/07C07H1/08A61K127/00
CPCA61K36/60A61K2236/17A61K2236/331A61K2236/35A61K2236/39A61K2236/51A61K2236/55C07H1/08C07H17/07
Inventor 刘富来郭岳樟陈俊淼
Owner FOSHAN UNIVERSITY
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