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Quinoa flavone extraction and purification process

A quinoa flavonoid and process technology, applied in the field of flavonoid extraction, can solve the problems of long production cycle, low purity and yield, and achieve the effects of improving extraction rate, high extraction rate and good separation effect

Inactive Publication Date: 2021-02-26
ANYANG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are problems of low purity and yield and long production cycle of flavonoids extracted from quinoa in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A process for extracting and purifying quinoa flavonoids, comprising the following steps:

[0016] (1) Raw material pretreatment: crush quinoa to 20 mesh, add petroleum ether according to the ratio of material to liquid at 0.2g / mL, oscillate on a shaking table for 5 hours, and filter with suction. In order to reduce petroleum residues, vacuum-dry at room temperature for 24 hours, and fully evaporate the petroleum ether. , get raw materials;

[0017] (2) Solvent extraction: take the raw materials obtained in step (1), add 70% volume fraction of ethanol according to the mass ratio of 1:10, ultrasonically cavitate for 25min, microwave for 90s under 260W, and heat in an environment of 85°C Reflux extraction twice, 1 hour each time, dry at low temperature, filter and concentrate, combine the filtrates to obtain a crude extract, add 15% sodium chloride, centrifuge at 5500r / min for 10 minutes, add hydrochloric acid to adjust the pH value to 2, and stir well Finally, let stand...

Embodiment 2

[0021] A process for extracting and purifying quinoa flavonoids, comprising the following steps:

[0022] (1) Pretreatment of raw materials: crush quinoa to 30 mesh, add petroleum ether according to the ratio of material to liquid at 0.2g / mL, oscillate on a shaking table for 5 hours, and filter with suction. In order to reduce the residue of petroleum, vacuum-dry at room temperature for 24 hours, and fully evaporate the petroleum ether. , get raw materials;

[0023] (2) Solvent extraction: take the raw materials obtained in step (1), add 90% volume fraction of ethanol according to the mass ratio of 1:70, ultrasonic cavitation for 30min, microwave for 125s under 260W state, and heat in an environment of 95°C Reflux extraction twice, 2 hours each time, dry at low temperature, filter and concentrate, combine the filtrates to obtain a crude extract, add 15% sodium chloride, centrifuge at 5500r / min for 10min, add hydrochloric acid to adjust the pH value to 2, and stir well Finally...

Embodiment 3

[0027] A process for extracting and purifying quinoa flavonoids, comprising the following steps:

[0028] (1) Pretreatment of raw materials: crush quinoa to 25 mesh, add petroleum ether according to the ratio of material to liquid at 0.2g / mL, oscillate on a shaker for 5 hours, and filter with suction. In order to reduce the residue of petroleum, vacuum dry at room temperature for 24 hours, and fully evaporate the petroleum ether. , get raw materials;

[0029] (2) Solvent extraction: take the raw materials obtained in step (1), add 90% volume fraction of ethanol according to the mass ratio of 1:50, ultrasonic cavitation for 30min, microwave for 110s under 260W state, and heat in an environment of 90°C Reflux extraction twice, 1.5h each time, dry at low temperature, filter and concentrate, combine the filtrate to obtain the crude extract, add 15% sodium chloride, centrifuge at 5500r / min for 10min, add hydrochloric acid to adjust the pH value to 2, fully After stirring, stand ov...

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Abstract

The invention discloses a quinoa flavone extraction and purification process. The process comprises the following steps of: (1) raw material pretreatment; (2) solvent extraction; and (3) purification.The invention belongs to the technical field of flavone extraction and purification, and particularly provides the quinoa flavone extraction and purification process. Through pretreatment of solventextraction, most lipid substances are removed; ultrasonic cavitation is added in reflux extraction, so that liquid generates a resonance phenomenon to cause cell wall rupture, the solvent penetrationis increased, and flavone components are dissolved out at a high speed, so that the extraction rate is increased; 15% sodium chloride is added into a crude extract, so that soluble proteins can be separated out; and purification is carried out through silica gel, so that the process is safe, high in extraction rate, non-toxic, pollution-free and better in separation effect.

Description

technical field [0001] The invention belongs to the technical field of flavonoid extraction, and specifically refers to a process for extracting and purifying quinoa flavonoids. Background technique [0002] Quinoa, also known as South American quinoa, quinoa, etc., is a herbaceous crop of Chenopodiaceae. Quinoa is native to the Andes region of South America and has been cultivated for more than 5,000 years. Quinoa is rich in functional nutrients. It is recognized by the Food and Agriculture Organization of the United Nations (FAO) as the only food that can meet the basic nutritional needs of the human body with a single plant. It is recommended as the most suitable complete nutritional food for human beings. It is known as super grain and nutritional gold. Studies have shown that the flavonoids contained in quinoa have many functions such as scavenging free radicals, anti-oxidation, anti-aging, anti-tumor, anti-virus, lowering blood pressure, lowering blood lipids, and en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/185A23L33/105
CPCA23V2002/00A61K36/185A61K2236/15A61K2236/333A61K2236/35A61K2236/39A61K2236/51A61K2236/53A61K2236/55A23L33/105A23V2200/30A23V2250/2116
Inventor 薛培宇赵洪梅张光杰谷令彪杜蕾杜磊杜鹃
Owner ANYANG INST OF TECH
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