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Ultrasonic assisted deep-eutectic solvent extraction method for polyphenols in globe artichoke

A technology of polyphenolic compounds and deep eutectic solvents, which is applied in the field of natural product extraction, can solve problems such as toxicity and restrictions, and achieve the effects of low cost, easy operation and good application prospects

Inactive Publication Date: 2019-12-31
HUAQIAO UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In general, most conventional organic solvents are highly volatile and either banned from use in products intended for human consumption or severely restricted due to their toxicity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Pretreatment of artichoke buds: Wash the freshly picked artichoke buds to remove impurities and soil, drain the water, peel off the bracts, and place them in pre-freeze at -20°C for 48 hours, then freeze-dry them at -80°C for 48 hours. -72h, after freeze-drying, the sample was crushed to 20-40 meshes to obtain artichoke bud powder, which was placed in a -20°C refrigerator for later use;

[0026] (2) Synthesis of eutectic solvent: taking by weighing choline chloride and phenol its mol ratio is 1: 2 respectively, is placed in the round bottom flask, and magnetic stirring speed is 100rpm, and heating temperature is 80 ℃, and the reaction time is After 180 min, a colorless transparent liquid was obtained, and then cooled to room temperature to obtain a deep eutectic solvent.

[0027] (3) Ultrasonic-assisted deep eutectic solvent extraction of artichoke polyphenols: Weigh 10 g of the above-mentioned artichoke flower bud powder and add 300 g of the above-mentioned deep eu...

Embodiment 2

[0032] (1) Pretreatment of artichoke buds: Wash the freshly picked artichoke buds to remove impurities and soil, drain the water, peel off the bracts, and place them in pre-freeze at -20°C for 48 hours, then freeze-dry them at -80°C for 48 hours. -72h, after freeze-drying, the sample was crushed to 20-40 meshes to obtain artichoke bud powder, which was placed in a -20°C refrigerator for later use;

[0033] (2) Synthesis of eutectic solvent: taking by weighing choline chloride and phenol its mol ratio is 1: 3 respectively, is placed in the round bottom flask, and magnetic stirring speed is 100rpm, and heating temperature is 80 ℃, and the reaction time is After 180 min, a colorless transparent liquid was obtained, and then cooled to room temperature to obtain a deep eutectic solvent.

[0034] (3) Ultrasonic-assisted deep eutectic solvent extraction of artichoke polyphenols: Weigh 10 g of the above-mentioned artichoke flower bud powder and add 300 g of the above-mentioned deep eu...

Embodiment 3

[0039] (1) Pretreatment of artichoke buds: Wash the freshly picked artichoke buds to remove impurities and soil, drain the water, peel off the bracts, and place them in pre-freeze at -20°C for 48 hours, then freeze-dry them at -80°C for 48 hours. -72h, after freeze-drying, the sample was crushed to 20-40 meshes to obtain artichoke bud powder, which was placed in a -20°C refrigerator for later use;

[0040] (2) Synthesis of eutectic solvent: take by weighing choline chloride and p-cresol its molar ratio is 1: 2 respectively, be placed in the round bottom flask, magnetic stirring speed is 100rpm, and heating temperature is 80 ℃, reaction After 180 min, a colorless transparent liquid was obtained, and then cooled to room temperature to obtain a deep eutectic solvent.

[0041](3) Ultrasonic-assisted deep eutectic solvent extraction of artichoke polyphenols: Weigh 10 g of the above-mentioned artichoke flower bud powder and add 300 g of the above-mentioned deep eutectic solvent (cho...

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PUM

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Abstract

The present invention discloses an ultrasonic assisted deep-eutectic solvent extraction method for polyphenols in globe artichoke. A combination of processing technologies of ultrasonic technology, deep-eutectic solvent, macroporous adsorption resin separation and purification technology, freeze-drying, etc. realizes extraction and purification of high-purity globe artichoke polyphenols, achievespurposes of being high-efficiency in extraction, free of solvent pollution, low in toxicity, environment-friendly and high in product purity, is simple in operation processes, short in extraction time, green and pollution-free and low in cost, and improves extraction rate and purity.

Description

technical field [0001] The invention belongs to the technical field of natural product extraction, and in particular relates to an ultrasonic-assisted deep eutectic solvent extraction method for polyphenolic compounds in artichokes. Background technique [0002] Artichoke, also known as artichoke, artichoke, chrysanthemum thistle, French lily, Dutch lily, scientific name Cynarascolymus L., Italian for Artichoke, belongs to the perennial herb of the family Asteraceae. The main edible parts are the receptacles of unopened flower buds and the fat and tender bracts. It is a high-nutrition health-care vegetable. Regular consumption can protect the liver and kidneys, enhance liver detoxification, prevent arteriosclerosis, and protect the cardiovascular system. It is rich in Artichoke acid, caffeic acid, chlorogenic acid, luteolin and other polyphenolic compounds are the active ingredients of artichoke, which can be used as raw materials for medicine and health products, and can al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/28A61K133/00
CPCA61K36/28A61K2236/13A61K2236/333A61K2236/51A61K2236/55
Inventor 汤须崇邓爱华黄志宏赵丽茹代均涵宋嘉怡黄韵霏
Owner HUAQIAO UNIVERSITY
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