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Complexation extraction method of plant polyphenols substances

A plant polyphenol and complexing technology, applied in the field of extraction of plant polyphenols, can solve the problems of requiring special equipment for recycling, reduced biological activity of plant polyphenol molecules, low efficiency, etc., and achieves the total amount of available resources and The potential economic value is high, the process is easy to realize, and the process is simple and easy to implement.

Inactive Publication Date: 2008-10-15
INST OF COMPREHENSIVE AGRI PROD UTILIZATION SHANXI PROV ACAD OF AGRI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The theoretical basis of using organic solvents for physical extraction is based on the difference in the distribution coefficient of plant polyphenols in water and different organic solvents, the extraction efficiency is relatively low, the utilization of leached plant polyphenols is not enough, and the recovery of organic solvents Utilization requires special equipment, and energy consumption is high
[0040] (2) Alkali metal or alkaline earth metal ions are separated by precipitation; the technical defect of metal ion precipitation is that metal ions are easy to form stable complexes with the molecules of plant polyphenols or make plant polyphenols undergo oxidation-reduction reactions, resulting in plant polyphenols Reduced biological activity of polyphenol molecules;
Separation and extraction of plant polyphenols by using large-pore resin adsorption method has the characteristics of simple process and low cost. However, the use of large-pore resins in the fields of food production and pharmaceutical industry is strictly restricted by relevant industry regulations

Method used

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  • Complexation extraction method of plant polyphenols substances
  • Complexation extraction method of plant polyphenols substances
  • Complexation extraction method of plant polyphenols substances

Examples

Experimental program
Comparison scheme
Effect test

Embodiment -1

[0077] Example-1: Complex extraction of apple and prunus polyphenols

[0078] 1. Pretreatment process:

[0079] Take by weighing pomace, pericarp, fruit (wherein: apple fruit is cut into about 0.5 centimeter section, and Oli fruit is chopped after removing kernel) raw material 500 grams of apple or prunus respectively, puts in suitable container, uses Soak in 1000 ml of acidic pure water with a pH value of 34 for 30 minutes, crush it with a pulverizer for about 30 seconds, so that the particle size of the material reaches 10-20 mesh, and ultrasonically treat it for 40 minutes under the conditions of ultrasonic frequency 40KHZ, power 200W, and temperature 40°C. Filtration is obtained by filtration, and the residue can be extracted and processed 2-3 times under the same conditions and the resulting filtrates are combined; all the above-mentioned filtrates are centrifuged at 4000-4500 rpm for 10 minutes, and the residue is discarded to obtain Extraction solution;

[0080] 2. Ex...

Embodiment -2

[0087] Embodiment-2: Complex extraction of grape seed, apple seed polyphenol

[0088] 1. Pretreatment process:

[0089] Weigh 500 grams of dried grape seeds and apple seeds respectively, crush them, put them in an appropriate container, soak them in 2000 ml of acidic pure water with a pH value of 3-4 for 24 hours, and use them under the conditions of ultrasonic frequency 80KHZ, power 200W, and temperature 40°C Ultrasonic treatment for 50 minutes and filtration, the residue was extracted 2-3 times under the same conditions, and the filtrate was combined; the above filtrate was centrifuged at 4000---4500 rpm for 10-20 minutes to obtain the extract ;

[0090] 2. Extraction process:

[0091] Use a pipette to draw 48ml of trioctyl phosphate, 13ml of n-octanol, and 39ml of kerosene, mix them well, and prepare the extractant;

[0092] Use a graduated cylinder to measure 250 ml of extract solution and 250 ml of extractant, put them in a 1000 ml separatory funnel, place the separato...

Embodiment -3

[0097] Example-3: Complex Extraction of Sorghum Polyphenols

[0098] 1. Pretreatment process:

[0099] Weigh 500 grams of dried sorghum seeds or sorghum husks that have been dried and crushed through a 10-mesh sieve, put them into a suitable container, soak them in 3000 ml of acidic pure water with pH=3-4 for 24 hours, Ultrasonic treatment for 40 minutes at 40KHZ, power 200W, temperature 40°C, filter to obtain the filtrate, the residue can be extracted and processed 2-3 times under the same conditions, and the filtrate is combined; the filtrate is heated at 4000---4500 rpm Under separate conditions, centrifuge for 10 minutes to obtain the extract;

[0100] 2. Extraction process:

[0101] Use a pipette to draw 31ml of trioctyl phosphate, 39ml of n-octanol, and 30ml of kerosene, mix them well, and prepare the extractant;

[0102] Use a graduated cylinder to measure 250 ml of extract solution and 250 ml of extractant, put them in a 1000 ml separatory funnel, place the separato...

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Abstract

The invention relates to a method for complexing and extracting plant polyphenol compounds to realizes the extraction of the plant polyphenol compound based on reversible complex reaction. Compared with the conventional physical extraction method, the method has the advantages of high separation efficiency and high purity of plant polyphenols, simple process, easy operation, and low energy consumption.

Description

technical field [0001] The invention relates to a method for extracting plant polyphenols, Background technique [0002] Modern medical research has proved that free radicals are the main cause of human aging and certain chronic diseases. When free radicals are produced too much or cleared too slowly, various organs will be damaged, thereby accelerating the aging of the body and inducing various diseases. Because plant polyphenols can provide the hydrogen needed to quench various active oxygen free radicals, play a role in scavenging free radicals, inhibiting the oxidation process, and protecting various organs, it has become a research hotspot and a rapidly developing field in recent years. In one field, some scholars call it the seventh type of nutrient after dietary fiber. [0003] The physiological activity of polyphenols is often a comprehensive reflection of its chemical activity. These physiological activities are not only related to the complex reaction of polyphe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/00B01D11/04A61P39/06C07D311/30C07D311/60C07D311/62
Inventor 王贤萍段泽敏孟晶岩韩彦龙张美玲
Owner INST OF COMPREHENSIVE AGRI PROD UTILIZATION SHANXI PROV ACAD OF AGRI
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