Pomegranate rind extraction and its preparation method

A technology of pomegranate peel extract and pomegranate peel extract liquid, which is applied in the field of pomegranate peel extract and its preparation, to achieve the effect of simple production process, short production cycle, and improvement of menopausal syndrome

Active Publication Date: 2007-10-24
GUILIN NATURAL INGREDIENTS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After a patent search, no patent was found on extracting punicalagin from pomegranate peel or extracting punicalagin from pomegranate peel

Method used

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  • Pomegranate rind extraction and its preparation method
  • Pomegranate rind extraction and its preparation method
  • Pomegranate rind extraction and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] 1) Pretreatment: washing and crushing the fresh pomegranate peel;

[0042] 2) Extraction: Put the crushed pomegranate peel in 8 times the amount of 40% methanol and extract twice at 80°C, stir occasionally during the extraction process, heat to boil and keep the temperature for 2 hours, collect the first extraction material liquid, the second After the second extraction, add 10 times the amount of 40% methanol, heat and boil for 2 hours, and collect the second extraction material;

[0043] 3) concentration and filtration: the extract is concentrated and centrifuged;

[0044] 4) The concentrated and centrifuged filtrate is adsorbed by column chromatography with D101 resin;

[0045] 5) Wash the resin with deionized water until the effluent liquid is colorless, then elute with a 40% ethanol solution, and collect the eluate;

[0046] 6) Concentrating the eluate to obtain a paste-like extract of pomegranate peel, and then drying to obtain a powder-like extract of pomegrana...

Embodiment 2

[0048] 1) Pretreatment: washing and pulverizing the dried pomegranate peel;

[0049] 2) Extraction: Put the crushed pomegranate peel in 10 times the amount of 65% ethanol and extract twice at 80°C, stir occasionally during the extraction process, heat to boil and keep the temperature for 2 hours, collect the first extraction liquid, the second After the second extraction, add 8 times the amount of 65% ethanol, heat and boil for 2 hours, and collect the second extraction material;

[0050] 3) concentration and filtration: the extract is concentrated and centrifuged;

[0051] 4) The concentrated and centrifuged filtrate is subjected to column chromatography, and is adsorbed with a small particle size synthetic adsorption resin whose model is HP20SS;

[0052]5) Wash the resin with deionized water until the effluent is colorless, then elute with a 35% ethanol solution, and collect the eluate;

[0053] 6) Concentrating the eluate to obtain a paste-like extract of pomegranate peel...

Embodiment 3

[0055] 1) Pretreatment: washing and pulverizing the dried pomegranate peel;

[0056] 2) Extraction: Put the crushed pomegranate peel in 10 times the amount of 65% ethanol and extract twice at 80°C, stir occasionally during the extraction process, heat to boil and keep the temperature for 2 hours, collect the first extraction liquid, the second After the second extraction, add 8 times the amount of 65% ethanol, heat and boil for 2 hours, and collect the second extraction material;

[0057] 3) The concentrated and centrifuged extract is subjected to column chromatography and adsorbed with a small particle size synthetic adsorption resin modeled as HP20SS;

[0058] 4) Wash the resin with deionized water until the effluent liquid is colorless, then elute with a 30% ethanol solution, and collect the eluate;

[0059] 5) Concentrate the eluent to obtain a creamy pomegranate peel extract, add 2 times the weight of 95% ethanol, dilute and mix;

[0060] 6) The diluted solution is subj...

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Abstract

The invention discloses a pomegranate bark extract and the method for preparing the same. It takes pomegranate bark as raw material, extracts with low-carbon alcohol such as methanol, ethanol, propylic alcohol, isopropyl alcohol and butanol, condensing, column chromatography, condensing, drying and getting powder pomegranate bark extract. The invention extracts guaijaverin from pomegranate bark. The pomegranate bark extract is red or brunneus, powder, astringent taste and the guaijaverin weight proportion is 40% or above 98%.

Description

technical field [0001] The invention relates to a pomegranate peel extract and a preparation method thereof. Specifically, the invention relates to a pomegranate peel extract containing punicalagin and a preparation method for extracting punicalagin from the pomegranate peel. Background technique [0002] Pomegranate (Pomegranate), alias: Ann Pomegranate, Pomegranate, Crystal Pomegranate, is the fruit of the Pomegranate plant Punica granatum L. Pomegranate rind (Pomegranate Rind), alias: pomegranate husk, sour pomegranate rind, pomegranate husk, sour garnet rind, pomegranate rind. . Pomegranate peel is irregular flake or scoop shape, different in size, 1.5-3mm thick, outer surface reddish brown, brownish yellow or dark brown, slightly glossy, rough, with many verrucous protrusions, some with raised tubes Persistent calyx and thick and short fruiting stems or scars. The inner surface is yellow or reddish-brown, with protruding and reticular fruit pedicle scars, hard and br...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/185A61P3/10A61P9/10A61P9/12A61P15/12A61P17/16A61P31/04A61P31/10A61P31/12A61P33/14A61P35/00A61P39/06A61K131/00
Inventor 孙步祥汤凌志李杰梁远胜杨文国陈振鹏韦兴
Owner GUILIN NATURAL INGREDIENTS CORP
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