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A method for preparing aloe bark extract with deep eutectic solvent

A low eutectic solvent, aloe peel technology, applied in solvent extraction, solid solvent extraction, separation methods, etc., can solve the problems of low effective fractionation of extracts, only use aloe vera flesh, aloe vera peels, etc., and achieve good bacteriostasis. and antioxidant effect, high content of active ingredients, good extraction effect

Active Publication Date: 2022-02-25
ZHUHAI INST OF ADVANCED TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The ketones, phenols, and anthraquinones contained in the aloe bark have good application value. However, in the prior art, the active ingredients in the aloe are often extracted with water, alcohol solvents or other organic solvents, and the obtained The content of active ingredients in the extract is low, especially the content of active ingredients in the obtained aloe bark extract, which greatly reduces the effect of aloe extract and limits the application of aloe extract
In addition, in the process of utilizing aloe in the prior art, only aloe meat is often used, and aloe skin is often discarded as waste
For example, for 20 tons of aloe, the aloe skin accounts for about 14 tons, which not only causes a waste of resources, but also takes up a lot of space for a large number of discarded aloe skins, which may also cause environmental problems

Method used

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  • A method for preparing aloe bark extract with deep eutectic solvent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1: prepare the method for aloe bark extract with deep eutectic solvent oxalic acid-choline chloride

[0039] Under the condition of heating to 60°C in a water bath, mix 30g of deep eutectic solvent oxalic acid-choline chloride and 100g of Aloe bark powder (100 mesh), maintain the water bath condition for 1 hour, obtain mixture A, and then carry out ultrasonic extraction , the power of the ultrasonic extractor used in the process of ultrasonic extraction is 500W, and the extraction time is 10 minutes to obtain the mixture B, filter, take the filtrate, soak the filtrate in water for 5 hours, wash the filtrate with water for 3 times, then filter and take the filter residue (the filter residues obtained by filtering for 3 times were combined), dried, the drying temperature was 45° C., and the drying time was 12 hours to obtain the aloe bark extract;

[0040] The deep eutectic solvent oxalic acid-choline chloride (oxalic acid-choline chloride refers to the deep eu...

Embodiment 2

[0041] Embodiment 2: the method for preparing aloe bark extract with deep eutectic solvent malic acid-choline chloride

[0042] Under the condition of heating to 60°C in a water bath, mix 30 g of deep eutectic solvent malic acid-choline chloride and 100 g of Aloe bark powder (100 mesh), maintain the water bath condition for 1 hour, obtain mixture A, and then perform ultrasonication Extraction, the power of the ultrasonic extractor used in the process of ultrasonic extraction is 500W, and the extraction time is 10 minutes to obtain mixture B, filter, take the filtrate, soak the filtrate in water for 5 hours, wash the filtrate with water for 3 times, then filter and take The filter residue (filter residues obtained by filtering for three times were combined), dried, the drying temperature was 45° C., and the drying time was 12 hours to obtain the aloe bark extract;

[0043] Deep eutectic solvent malic acid-choline chloride (malic acid-choline chloride represents a deep eutectic ...

Embodiment 3

[0044] Embodiment 3: prepare the method for aloe bark extract with deep eutectic solvent citric acid-choline chloride

[0045]Under the condition of heating to 60°C in a water bath, mix 30 g of deep eutectic solvent citric acid-choline chloride and 100 g of Aloe bark powder (100 mesh), maintain the water bath condition for 1 hour, obtain mixture A, and then perform ultrasonication Extraction, the power of the ultrasonic extractor used in the process of ultrasonic extraction is 500W, and the extraction time is 10 minutes to obtain mixture B, filter, take the filtrate, soak the filtrate in water for 5 hours, wash the filtrate with water for 3 times, then filter and take The filter residue (filter residues obtained by filtering for three times were combined), dried, the drying temperature was 45° C., and the drying time was 12 hours to obtain the aloe bark extract;

[0046] Deep eutectic solvent citric acid-choline chloride (citric acid-choline chloride represents the deep eutect...

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Abstract

The invention belongs to the technical field of plant extraction, and discloses a method for preparing an aloe bark extract with a deep eutectic solvent. The method comprises the following steps: mixing the deep eutectic solvent and the aloe bark under heating conditions to obtain a mixture A, and then Perform ultrasonic extraction to obtain mixture B, filter, take the filtrate, and then separate; the deep eutectic solvent is a mixture of choline chloride and acid or glycerin. Due to the combined use of the deep eutectic solvent and ultrasonic extraction technology, the active ingredient content of the aloe bark extract prepared by the method of the present invention is high. Compared with the prior art using a large amount of organic solvents or complicated extraction steps, the present invention The method described in the invention has a simple process, is suitable for industrialization, and has remarkable economic benefits and environmental protection effects.

Description

technical field [0001] The invention belongs to the technical field of plant extraction, in particular to a method for preparing aloe bark extract by using a deep eutectic solvent. Background technique [0002] The ketones, phenols, and anthraquinones contained in the aloe bark have good application value. However, in the prior art, the active ingredients in the aloe are often extracted with water, alcohol solvents or other organic solvents, and the obtained The low content of active ingredients in the extract, especially the low content of active ingredients in the obtained aloe bark extract, greatly reduces the effect of the aloe extract and limits the application of the aloe extract. In addition, in the process of using aloe in the prior art, only the aloe meat is often used, and the aloe skin is often discarded as waste. For example, for 20 tons of aloe, the aloe bark accounts for about 14 tons, which not only causes a waste of resources, but also takes up a lot of spac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K36/896A61K36/886A61P39/06A61P33/00A61K8/9794A61Q19/08A61Q17/00B01D11/02
CPCA61K36/896A61K36/886A61P39/06A61P33/00A61K8/9794A61Q19/08A61Q17/005B01D11/0288A61K2236/333A61K2800/82
Inventor 张嘉恒邱洪伟袁菊懋张成才李志超黎钊明刘凌雯陈正件孔晶
Owner ZHUHAI INST OF ADVANCED TECH