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Method for extracting lychee seed flavonoids via ionic liquid

A technology of ionic liquid and lychee core, which is applied in the direction of pharmaceutical formulations, medical preparations containing active ingredients, anti-toxic agents, etc., can solve the problems of long extraction time, low production efficiency, and large solvent consumption, and achieve high extraction rate and improved The effect of utilization

Inactive Publication Date: 2015-04-29
HUIZHOU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this extraction method adopts the ultrasonic extraction method, the extraction time of this method is long, the production efficiency is low, the solvent consumption is large, and it cannot be recycled.

Method used

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  • Method for extracting lychee seed flavonoids via ionic liquid
  • Method for extracting lychee seed flavonoids via ionic liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method utilizing ionic liquid to extract litchi kernel flavonoids, comprising the steps of:

[0018] Weigh 50 parts of lychee cores, use low-temperature liquid nitrogen beating technology, and beat under the condition of -30 ℃ to obtain litchi core slurry, which can effectively prevent the volatilization loss of litchi core active ingredients, and mix the litchi core slurry with 20 parts of 1-hexyl-3- Methylimidazolium hexafluorophosphate ([Bmim]PF 6 ) mixed evenly, put into the extraction bottle, extract the flavonoids under the condition of microwave power 100W, temperature 100℃, the flavonoid extract is condensed and recovered by the extractor, the extraction time is 30min, and dried with anhydrous sodium sulfate, sealed and refrigerated at 0℃ save.

Embodiment 2

[0020] A method utilizing ionic liquid to extract litchi kernel flavonoids, comprising the steps of:

[0021] Weigh 60 parts of lychee kernels, use low-temperature liquid nitrogen beating technology, and beat at -20°C to obtain litchi kernel slurry, which can effectively prevent the volatilization and loss of litchi kernel active ingredients. Lychee kernel slurry is mixed with 25 parts of 1-hexyl-3 Methylimidazolium hexafluorophosphate ([Bmim]PF 6 ) mixed evenly, put into the extraction bottle, extract flavonoids under the condition of microwave power 200W, temperature 120°C, the flavonoid extract is condensed and recovered by the extractor, the extraction time is 35min, dried with anhydrous sodium sulfate, sealed and refrigerated at 1°C save.

Embodiment 3

[0023] A method utilizing ionic liquid to extract litchi kernel flavonoids, comprising the steps of:

[0024] Weigh 70 parts of lychee kernels, use low-temperature liquid nitrogen beating technology, and beat at -25°C to obtain a litchi kernel slurry, which can effectively prevent the loss of active components of litchi kernels. Mix the litchi kernel slurry with 30 parts of 1-hexyl-3- Methylimidazolium hexafluorophosphate ([Bmim]PF 6 ) mixed evenly, put into the extraction bottle, extract the flavonoids under the conditions of microwave power 300W, temperature 130°C, the flavonoid extract is condensed and recovered by the extractor, the extraction time is 40min, and dried with anhydrous sodium sulfate, sealed and refrigerated at 2°C save.

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Abstract

The invention relates to a method for extracting lychee seed flavonoids via an ionic liquid, and belongs to the field of deep processing of litchis seeds. The deep processing craft of the lychee seeds comprises the following steps: weighing 50-100 parts of lychee seeds, pulping the lychee seeds at minus 30 to minus 10 DEG C by using a low temperature liquid nitrogen pulping technology to obtain lychee seed slurry, in order to effectively prevent the volatilization loss of the active ingredients of the lychee seeds, uniformly mixing the lychee seed slurry with 20-40 parts of 1-caproyl-3-methylimidazolium hexafluorophospate, putting the mixture in an extracting bottle, extracting flavonoids at microwave power of 100-500 W and a temperature of 100-170 DEG C, carrying out condensation recovering the flavonoids extracting solution for 30-50 minutes by using an extractor, drying the flavonoids extracting solution by using anhydrous sodium sulfate, and sealing and carrying out cold storage the flavonoids extracting solution at 0-5 DEG C. The extraction rate of the extraction method is high, and the extraction medium, namely the ionic liquid can be recycled, thereby being environment-friendly, pollution-free and suitable for industrial pollution, and moreover, the lychee seed wastes are comprehensively utilized to improve the utilization rate of leftovers.

Description

technical field [0001] The invention relates to a method for extracting flavonoids from litchi kernels, in particular to a method for extracting flavonoids from litchi kernels by using ionic liquid, and belongs to the technical field of deep processing of litchi kernels. Background technique [0002] Ionic Liquid, also known as Room Temperature Molten Salt, refers to a liquid composed entirely of anions and cations at room temperature or near room temperature, generally composed of specific, relatively large, asymmetric structure Organic cations and relatively small inorganic anions [fgl. In ionic compounds, the force between anion and cation is Coulomb force, and its size is related to the charge quantity and radius of the anion and cation. The larger the ionic radius, the smaller the force between them, so that the melting point is close to room temperature. Due to the incomparable advantages of many traditional solvents, ionic liquids can be used as green solvents for th...

Claims

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Application Information

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IPC IPC(8): A61K36/77A61P1/16A61P31/20A61P39/06
CPCA61K36/77A61K2236/30A61K2236/51
Inventor 张斌薛子光吴军张天义王春宁
Owner HUIZHOU UNIV
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