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Extraction method of pawpaw polyphenol

An extraction method and papaya technology are applied in the directions of pharmaceutical formulations, preparations for skin care, and medical preparations containing active ingredients, etc., which can solve the problems of prolonging extraction time and increasing production costs, and achieves improved extraction efficiency, simple and efficient raw materials. The effect of antioxidant capacity

Inactive Publication Date: 2017-09-22
林燕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition of enzymes in this method leads to the removal of enzymes in the water body before they can be directly applied, and this method requires extraction of the solid part, which prolongs the extraction time and relatively increases the production cost.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for extracting polyphenols from papaya, comprising the following steps: (1) After mixing choline chloride and urea in a molar ratio of 1:2, heating at 500 rpm and 80°C for 1.5 hours to form a clear and uniform low-alcohol Melting reagent; wash the papaya with water and dry it naturally, remove the core and cut it into small pieces smaller than 2cm×2cm×2cm for later use; (3) mix the deep eutectic reagent and water at a volume ratio of 1:0.5 Finally, mix the small pieces of papaya with the deep eutectic reagent-water mixture according to the mass volume ratio of 1:8, then mash the machine to make a slurry, and microwave the slurry at 350W ultrasonic power, 200W microwave power and 40°C Ultrasound for 20 minutes and filter to obtain the filtrate; (4) Add 8% dipotassium hydrogen phosphate to the filtrate, vortex for 15 seconds, centrifuge to form a two-water phase, take out the lower phase of the two-water, add 0.5 times methanol to it, and vortex Centrifuge at 250...

Embodiment 2

[0024] A method for extracting papaya polyphenols, comprising the following steps: (1) After mixing betaine and glycerin in a molar ratio of 1:2, heating at 450 rpm and 70°C for 2 hours to form a clear and uniform deep eutectic reagent ;Wash the papaya with clean water, dry it naturally, remove the core and cut it into small pieces smaller than 2cm×2cm×2cm for later use; (3) Mix the eutectic reagent and water at a volume ratio of 1:1 , mix the small pieces of papaya with the deep eutectic reagent-water mixture according to the mass volume ratio of 1:5, and then mash the machine to make a slurry. The slurry is microwave-ultrasonic at 300W ultrasonic power, 250W microwave power and 45°C. After 20 minutes, filter to obtain the filtrate; (4) Add 10% potassium citrate to the filtrate, vortex for 20s, centrifuge to form a two-water phase, take out the lower phase of the two-water, add 1 times methanol to it, and vortex at 3000rpm Under the conditions, the centrifugation time is 10mi...

Embodiment 3

[0026] A method for extracting polyphenols from papaya, comprising the following steps: (1) After mixing L-carnitine and glycerin at a molar ratio of 1:2, heating at 500 rpm and 60°C for 1 hour to form a clear and uniform eutectic Reagent; wash the papaya with clean water, dry it naturally, remove the core and cut it into small pieces smaller than 2cm×2cm×2cm for later use; (3) Mix the deep eutectic reagent with water at a mass volume ratio of 1:0.8 After uniformity, mix the small pieces of papaya with the deep eutectic reagent-water mixture at a volume ratio of 1:4, then mash the machine to make a slurry, and microwave the slurry under the conditions of 350W ultrasonic power, 200W microwave power and 40℃- Ultrasound for 25 minutes and then filter to obtain the filtrate; (4) Add 8% potassium sulfate to the filtrate, vortex for 15s, centrifuge to form a two-water phase, take out the lower phase of the two-water, add 1.2 times of methanol to it, and vortex at 3000rpm Under the c...

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Abstract

The invention discloses an extraction method of pawpaw polyphenol. The method comprises the following steps: firstly washing and denucleating pawpaw, cutting into small blocks for standby use, then after mixing the pawpaw small blocks with low congruent melting reagent-water mixed solution, using a stamping machine, preparing into pulp, using a microwave-ultrasonic technology to treat the pulp, filtering to obtain a filter liquor, finally adding salt into the filter liquor, carrying out vortex centrifugal to form an aqueous two phase, after taking the lower phase of the aqueous two phase, adding a certain amount of methyl alcohol therein, carrying out vortex centrifugal, separating a methyl alcohol upper phase, and evaporating a solvent to obtain an extractive rich in pawpaw polyphenol. The pawpaw polyphenol is extracted by adopting the extraction method, the extraction efficiency of the pawpaw polyphenol can be obviously improved, the extraction time is saved, the using of an organic solvent can be reduced furthermore, and the extraction method is more environment-friendly. Moreover, the polyphenol extractive obtained in the invention can be directly applied to the products such as toothpastes, facial cleansers, shampoo, liquid makeup and hand cream without subsequent purification, and the used product has efficient oxidation resistance.

Description

technical field [0001] The invention relates to a method for extracting and purifying active ingredients in daily chemicals, more specifically, the invention relates to a method for extracting papaya polyphenols. Background technique [0002] Plant polyphenols are a class of natural macromolecular compounds that widely exist in plants, and their content is second only to lignin, cellulose and hemicellulose. Polyphenols can be divided into two categories. One type is polyphenolic monomers, that is, non-polymers, including various flavonoids, chlorogenic acids, gallic acid and ellagic acid, as well as some complex polyphenolic compounds with glycoside groups (such as rutin Wait). The other type is oligomers or polymers formed by the polymerization of monomers, collectively referred to as tannins. Polyphenols have strong antioxidant properties, and have significant curative effects in antibacterial, anti-virus, anti-aging, anti-cancer, etc. At present, polyphenols have great...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/9789A61K8/34A61Q19/00A23L33/105
CPCA61K8/97A23L33/105A23V2002/00A61K8/347A61K2800/10A61K2800/522A61K2800/81A61K2800/82A61Q19/00A23V2250/2132
Inventor 林燕
Owner 林燕
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