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Apparatus and method for pulsed electric field-assisted countercurrent extraction of grape skin residue polyphenol

A grape skin pomace polyphenol, countercurrent extraction technology is applied in solid solvent extraction, chemical/physical/physicochemical processes of energy application, organic chemistry, etc., and can solve the problems of low extraction rate and long time consumption of grape skin pomace polyphenols. , to achieve the effect of increasing additional economic value, reducing energy consumption and saving solvent consumption

Inactive Publication Date: 2013-07-31
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problem of low extraction rate and long time consumption of grape pomace polyphenols in the prior art, the purpose of the present invention is to provide a pulse electric field assisted countercurrent extraction device and method for grape pomace polyphenols

Method used

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  • Apparatus and method for pulsed electric field-assisted countercurrent extraction of grape skin residue polyphenol

Examples

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Embodiment 1

[0035] Such as figure 1 As shown, the pulse electric field-assisted countercurrent extraction device for grape pomace polyphenols in this embodiment includes a pulse treatment tank and 6 extraction units; a pulse treatment tank 3, a first extraction unit 6, and a second extraction unit 7 , the 3rd leaching unit 8, the 4th leaching unit 9, the 5th leaching unit 10, and the 6th leaching unit 11 are arranged in sequence, and 6 leaching units are placed in the water bath heating tank 12, and the leaching units are provided with There is a baffle 5; a solvent injection port 13 is provided above the fifth leaching unit 11, an electric field negative electrode 2 and an electric field positive electrode 4 are provided on the pulse treatment pool 3, and an extraction solution outlet is provided below the pulse treatment pool 3 14. When working, first inject the solvent into the sixth leaching unit 11, the solvent flows from the filled leaching unit to the next leaching unit, and finall...

Embodiment 2

[0049] The pulsed electric field-assisted countercurrent extraction device used in this example is the same as that in Example 1.

[0050] The pulsed electric field-assisted countercurrent extraction method of grape pomace polyphenols in this embodiment comprises the following steps:

[0051] (1) Put 7 porous baskets with grape pomace into the pulse treatment tank and 6 extraction units respectively;

[0052] (2) Open the solvent injection port, fill the sixth extraction unit 11 with the extraction solvent, stop the injection for 13 minutes, and obtain the extract; open the solvent injection port again, and continue to inject solvent into the sixth extraction unit 11, and the extraction solution is obtained from the sixth extraction unit 11. The extraction unit 11 flows into the fifth extraction unit 10 until the fifth extraction unit 10 is filled with the extraction solution, and the solvent injection port is opened after 13 minutes of stopping injection; the solvent injectio...

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Abstract

The invention discloses an apparatus for extracting grape skin residue polyphenol by pulsed electric field auxiliary counter current, which comprises a pulsed treatment pool and N extraction units, and N is no less than 1; the pulsed treatment pool and N extraction units are arranged in order; a solvent inlet is arranged above the N extraction units, and the lower part of the pulsed treatment pool is provided with an extract outlet. During work, firstly, the solvent is injected into the Nth extraction unit, and the solvent flows from the filled extraction unit into the next extraction unit, and finally the solvent flows from the first extraction unit into the pulsed treatment pool. The invention also discloses a method for realizing extraction of grape skin residue polyphenol by pulsed electric field auxiliary counter current according to the apparatus. The invention solves the problems of long time consuming, low extraction efficiency and complex operation technology when extracting grape skin residue polyphenol by the present traditional method.

Description

technical field [0001] The invention relates to the technical field of extracting polyphenols from grape pomace, in particular to a device and a method for extracting polyphenols from grape pomace in countercurrent with pulse electric field assistance. Background technique [0002] Grapes are one of the most productive fruits in the world, with an annual output of about 65 million tons, 80% of which are used for winemaking. The residue (grape pomace) produced after grape winemaking is mainly composed of grape skin and grape seeds, accounting for about 20% of its total processing quality. At present, most of the grape pomace for winemaking in my country is used as fertilizer, feed or burning material, and the utilization rate is very low, while more than 70% of the grape pomace in France, Italy, Spain and other wine countries have been well utilized. The grape pomace after winemaking contains extremely rich nutrients. Extracting functional active substances from grape pomace...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D11/02B01J19/08C07G99/00
Inventor 刘丹曾新安孙大文王启军
Owner SOUTH CHINA UNIV OF TECH
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