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Extraction auxiliary for phytoextraction flavone as well as preparation method and application thereof

A technology of plant extraction and auxiliary substances, applied in separation methods, chemical instruments and methods, solvent extraction, etc., can solve the problems of perishable and deteriorated extracts, low extraction rate, toxic methanol, etc., and achieve stable and long-term effects of auxiliary extraction , The post-processing process is simple and convenient, and the overall structure is stable

Active Publication Date: 2018-06-29
HENAN BUSINESS SCI RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, in the extraction process of flavonoids, if hot water is used for extraction, the extract is easy to rot and deteriorate. , although it overcomes the disadvantage of easy mildew in water extraction, there are complicated operations such as subsequent filtration, drying, and solvent recovery; while the extraction rate of ethyl acetate extraction is low and the cost is high
Although the extraction rate of the methanol extraction method is high, the cost is also high, and the methanol is toxic and the process is complicated, so it is not suitable for the extraction of flavonoids from persimmon leaves

Method used

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  • Extraction auxiliary for phytoextraction flavone as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] An extraction aid for flavonoids extracted from plants is prepared from the following raw materials in parts by weight: 1 part of nano-hydroxyapatite, 1.8 parts of nano-silicon dioxide, 4 parts of beta-alumina, and 4 parts of nano-titanium dioxide.

[0027] The preparation method of the extraction auxiliary substance for extracting flavonoids from plants is prepared by the following steps:

[0028] A) Put the nano-hydroxyapatite in low-carbon alcohol (ethanol) and boil and reflux for 3 hours, then add nano-silica, boil and reflux for 5 hours, and concentrate to remove the low-carbon alcohol after cooling;

[0029] B) Add β-alumina and nano-titanium dioxide to grind, first bake at 200°C for 4 hours, and then bake at 600°C for 6 hours.

[0030] Application of the flavonoid extraction aid in extracting flavonoids from persimmon leaves.

[0031] The method for extracting flavonoids by using the extraction aids comprises the following steps:

[0032] 1) Persimmon leaves ar...

Embodiment 2

[0036] An extraction aid for flavonoids extracted from plants is prepared from the following raw materials in parts by weight: 1 part of nano-hydroxyapatite, 1.5 parts of nano-silicon dioxide, 3 parts of beta-alumina, and 3 parts of nano-titanium dioxide.

[0037] The preparation method of extraction aids for extracting flavonoids from plants is prepared by the following steps: A) putting nano-hydroxyapatite in low-carbon alcohol (n-propanol) and boiling under reflux for 4 hours, then adding nano-silica, Boil and reflux for 6 hours, and concentrate to remove low-carbon alcohol after cooling;

[0038] B) Add β-alumina and nano-titanium dioxide to grind, first bake at 350°C for 2 hours, and then bake at 700°C for 8 hours.

[0039] The application of the flavonoid extraction aid in the extraction of flavonoids in persimmon leaves or wild jujube leaves.

[0040] The method for extracting flavonoids by using the extraction aids comprises the following steps:

[0041] 1) Sour juju...

Embodiment 3

[0045] An extraction aid for flavonoids extracted from plants is prepared from the following raw materials in parts by weight: 1 part of nano-hydroxyapatite, 2 parts of nano-silicon dioxide, 5 parts of β-alumina, and 5 parts of nano-titanium dioxide.

[0046] The preparation method of the extraction aids for extracting flavonoids from plants is the same as in Example 1.

[0047] Utilize the method for extracting flavonoids of described extraction aids, with embodiment 1, difference is: adopt thermal extraction method to extract: the mixing ratio of drying powder, flavonoids extraction aids and ethanol is 1g: 0.8g: 12ml, extract The temperature is 60°C and the extraction time is 1.5h. The volume percent concentration of the ethanol is 75%.

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Abstract

The invention relates to an extraction auxiliary for phytoextraction flavone. The extraction auxiliary is prepared from the following raw materials in parts by weight: 1 part of nano-hydroxyapatite, 1.5 to 2 parts of nano-silica, 3 to 5 parts of beta-alumina, and 3 to 5 parts of nano-titanium dioxide. The flavone extraction auxiliary is simple in components, non-toxic, safe, low in cost, and simple in preparation; the flavone extraction auxiliary has a high extraction rate for extracting flavone, can be directly filtered after extraction, and the post-treatment is simple and convenient. Residues of the extraction auxiliary and an extract can be recovered and reused by calcining to remove the residues.

Description

technical field [0001] The invention specifically relates to an extraction aid for extracting flavonoids from plants, a preparation method and application thereof. Background technique [0002] In the prior art, in the extraction process of flavonoids, if hot water is used for extraction, the extract is easy to rot and deteriorate. , although it overcomes the disadvantage of easy mildew in water extraction, there are complicated operations such as subsequent filtration, drying, and solvent recovery; while the extraction rate of ethyl acetate extraction is low and the cost is high. Although the extraction rate of the methanol extraction method is high, the cost is also high, and the methanol is toxic and the process is complicated, so it is not suitable for the extraction of flavonoids from persimmon leaves. Contents of the invention [0003] The object of the present invention is to provide an extraction aid for extracting flavonoids from plants, while providing a prepara...

Claims

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Application Information

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IPC IPC(8): B01D11/02
CPCB01D11/0288
Inventor 张立攀章建军周莉李彬张亚勋王永郭青照李博闻付有利李小云冯军伟李远远冯俊旗
Owner HENAN BUSINESS SCI RES INST