Method for preparing ageratina adenophora extract by membrane separation

A technology of Eupatorium adenophorum extract, which is applied in the field of preparation of Eupatorium adenophorum extract by membrane separation, can solve the problems that hinder the popularization and application of Eupatorium adenophorum extract, reduce the content of active ingredients, destroy active ingredients, etc., and achieve active The effect of high ingredient content, short process and easy industrialization

Inactive Publication Date: 2014-08-27
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, it is not difficult to find that the Eupatorium adenophorum extract used in these two patents is soaked in low temperature during the extraction process, which prevents the influence of temperature on the active ingredients during the extraction process, but in the concentration process, using The method of vacuum distillation destroys the active ingredients to a cer

Method used

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  • Method for preparing ageratina adenophora extract by membrane separation
  • Method for preparing ageratina adenophora extract by membrane separation
  • Method for preparing ageratina adenophora extract by membrane separation

Examples

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Embodiment 1

[0049] (1) The dried Eupatorium adenophorum leaves are pulverized and passed through a 40-mesh sieve to obtain Eupatorium adenophorum powder;

[0050] (2) put the Eupatorium adenophorum powder obtained in the 10kg step (1) into the extraction kettle, and add the ethanol that the mass fraction is 95%, soak under room temperature for 3 days, extract 3 times (the use quality of ethanol is respectively 50kg, 25kg, 25kg), 3 layers of gauze are filtered, and the filtrate is combined to obtain the extract of 86.7kg for subsequent use;

[0051] (3) Transfer the extract obtained in step (2) to the raw material tank, and use a microfiltration membrane (filter aperture is 0.13 μm, PS roll microfiltration membrane) to carry out microfiltration separation to remove larger solids and control the pressure 0.3~0.8MPa, as the microfiltration proceeds, the concentration of the material in the tank increases continuously, and new extract should be added at any time. When the extract obtained in ...

Embodiment 2

[0085] (1) The dried Eupatorium adenophorum leaves are pulverized and passed through a 60-mesh sieve to obtain Eupatorium adenophorum powder;

[0086] (2) put the Eupatorium adenophorum powder obtained in the 10kg step (1) into the extraction kettle, and add mass fraction as 60% ethanol, soak for 4 days under room temperature, extract 3 times (the use quality of ethanol is respectively 50kg, 25kg, 25kg), 3 layers of gauze are filtered, and the filtrate is combined to obtain the extract of 81.5kg for subsequent use;

[0087](3) Transfer the extract obtained in step (2) to the raw material tank, and use a microfiltration membrane (filter aperture is 0.13 μm, PS roll microfiltration membrane) to carry out microfiltration separation to remove larger solids and control the pressure 0.3~0.8MPa, as the microfiltration proceeds, the concentration of the material in the tank increases continuously, and new extract should be added at any time. When the extract obtained in step (2) is cl...

Embodiment 3

[0095] (1) The dried Eupatorium adenophorum leaves are pulverized and passed through a 60-mesh sieve to obtain Eupatorium adenophorum powder;

[0096] (2) Put 10kg of Eupatorium adenophorum powder obtained in step (1) into an extraction kettle, add acetone, soak for 1 day at room temperature, and extract 3 times (the use quality of ethanol is 50kg, 25kg, 25kg respectively) , filtered through 3 layers of gauze, and the filtrate was combined to obtain 89.5kg of extract for subsequent use;

[0097] (3) Transfer the extract obtained in step (2) to the raw material tank, and use a microfiltration membrane (filter aperture is 0.13 μm, PS roll microfiltration membrane) to carry out microfiltration separation to remove larger solids and control the pressure 0.3~0.8MPa, as the microfiltration proceeds, the concentration of the material in the tank increases continuously, and new extract should be added at any time. When the extract obtained in step (2) is close to the microfiltration s...

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Abstract

The invention relates to the plant extraction field, and in particular relates to a method for preparing ageratina adenophora extract by membrane separation. The method comprises the following steps: smashing ageratina adenophora and sieving to obtain ageratina adenophora powder, and soaking the ageratina adenophora powder with a solvent and extracting to obtain an extracting solution; and separating obtained filtrate by a micro-filtration membrane through microfiltration, then carrying out ultrafiltration, nanofiltration and reverse osmosis concentration to remove proteins, macromolecule solid matters, polysaccharide, pigment and the like to finally obtain the ageratina adenophora extract with solid content being 8-30%, wherein micromolecule active ingredients before and after treatment by the method are unchanged basically, the pigment removal rate can reach about 95% and the solid content removal rate is up to about 50%. According to the method, energy-saving and environment-friendly effects are achieved, the operation is simple, active ingredient loss is low, the solvent can be recycled easily and the pigment removal rate is high, the method is suitable for industrialization-scale production and lays up the material basis for promotion and application of the ageratina adenophora extracts.

Description

technical field [0001] The invention relates to the field of plant extraction, in particular to a method for preparing Eupatoria adenophorum extract by membrane separation. Background technique [0002] Eupatorium adenophorum (Eupatorium adenophorum Spreng) is a perennial clustered semi-shrub plant of the genus Eupatorium adenophorum in the Asteraceae family. It is native to Mexico in Central America and was introduced to southern Yunnan from the borders of my country and Myanmar and China and Vietnam around the 1950s. The plant has an astonishing ability to reproduce, forming dense patches of single-dominant colonies that exclude the growth of other plants. In the past 30 years, Eupatorium adenophorum has spread rapidly to the north and east at a speed of 30km per year, and its distribution range has reached Yunnan, Guizhou, Guangdong, Guangxi, Sichuan, Tibet and other provinces. 617×105km 2 The above has brought serious harm to the sideline agriculture, forestry and anim...

Claims

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Application Information

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IPC IPC(8): A01N65/12A01P1/00A01P3/00A23B7/153A61L9/013
CPCY02P60/85
Inventor 谷文祥方炜
Owner SOUTH CHINA AGRI UNIV
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