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A method for extracting tomato pomace by subcritical fluid

A subcritical fluid and tomato pomace technology, applied in extraction, purification/separation, organic chemistry, etc., can solve the problem of strict water content in tomato pomace, and achieve good extraction of active substances, good extraction efficiency, equipment and production low cost effect

Active Publication Date: 2018-11-09
COFCO NUTRITION & HEALTH RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The main purpose of the present invention is to overcome the shortage of strict requirements on the water content of tomato peels in the existing extraction methods, and provide an extraction method with loose requirements on the water content of tomato peels

Method used

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  • A method for extracting tomato pomace by subcritical fluid
  • A method for extracting tomato pomace by subcritical fluid
  • A method for extracting tomato pomace by subcritical fluid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The particle size of the pulverized tomato pomace is controlled at 80-100 mesh, the water content of the tomato pomace is controlled at 90wt%, and 3500g of the above-mentioned tomato pomace is weighed (the determined lycopene content is 18.6mg / 100g), and put into a subcritical extraction kettle , pass into the subcritical fluid of methyl ether, the weight ratio of the subcritical fluid of methyl ether to the tomato pomace is 1:20, control the flow rate to extract at 50kg / h, under the extraction temperature of 15°C and the pressure of 0.4MPa, make The methyl ether subcritical fluid is completely submerged in the tomato peel for extraction, and the extraction is continuously circulated for 6 hours to obtain a tomato peel extraction mixture.

[0045] Control the separation temperature to 40°C and the separation pressure to 0.2 MPa. After separation, the fat-soluble organic phase containing lycopene and the aqueous solution mixture are obtained. After the organic phase is se...

Embodiment 2

[0047] The particle size of the pulverized tomato pomace is controlled at 60-80 mesh, the water content of the tomato pomace is controlled at 50wt%, and 700g of the above-mentioned tomato pomace is weighed (the determined lycopene content is 17.8mg / 100g), and put into a subcritical extraction kettle , pass into the mixed fluid of methyl ether and butane, the volume ratio of methyl ether and butane is 1:1, the weight ratio of the subcritical fluid and tomato pomace is 1:5, and the control flow is extracted at 5kg / h, At an extraction temperature of 40° C. and a pressure of 1 MPa, the subcritical fluid was completely submerged in tomato peels for extraction, and the extraction was carried out continuously for 4 hours to obtain a tomato peel extraction mixture.

[0048] Control the separation temperature to be 60° C. and the separation pressure to be 0.8 MPa. After separation, the fat-soluble organic phase containing lycopene and the aqueous solution mixture are obtained. extract)...

Embodiment 3

[0050] The particle size of the pulverized tomato pomace is controlled at 60-80 mesh, the water content of the tomato pomace is controlled at 50wt%, and 700g of the above-mentioned tomato pomace is weighed (the determined lycopene content is 15.2mg / 100g), and put into a subcritical extraction kettle , pass into the mixed subcritical fluid of methyl ether and butane, the volume ratio of methyl ether and butane is 3:2, the weight ratio of the subcritical fluid and tomato pomace is 1:10, and the flow rate is controlled at 10kg / h For extraction, at an extraction temperature of 40° C. and a pressure of 1 MPa, the subcritical fluid is completely submerged in the tomato peel for extraction, and the extraction is carried out in a continuous cycle for 4 hours to obtain a tomato peel extraction mixture.

[0051] Control the separation temperature to be 60° C. and the separation pressure to be 0.8 MPa. After separation, the fat-soluble organic phase containing lycopene and the aqueous sol...

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Abstract

The invention provides a method for extracting tomato skin residues by adopting subcritical fluid. The method comprises the following steps: (1) extracting the ground tomato skin residues at the temperature of 15-60 DEG C and under the pressure of 0.4-4 MPa for 0.5-6 hours by adopting subcritical fluid, thereby obtaining a tomato skin residue extraction mixture; (2) maintaining the tomato skin residue extraction mixture obtained in the step (1) at the temperature of 40-60 DEG C and under the pressure of 0.2-2 MPa so as to gasify the subcritical fluid, thereby obtaining the tomato skin residue extract. According to the method disclosed by the invention, the requirement of the moisture of the tomato skin residues is not strict, and tomato skin residues with high moisture content can be extracted. Moreover, damage to bioactive substances and protein structures contained in the tomato skin residues can be reduced, and the equipment cost is low. The extracted tomato skin residue extract is low in moisture content, has good reutilization value and can be widely applied to the preparation field of tomato proteins and fibers.

Description

technical field [0001] The invention relates to a novel technology for extracting and developing active substances in the by-product of the tomato industry, tomato pomace. Specifically, the present invention relates to a method for extracting tomato pomace by physical means, especially using a subcritical fluid to extract active substances, especially lycopene, from tomato pomace at a temperature lower than 60°C. A method for efficiently separating and extracting lycopene to obtain high-yield lycopene, and the method has loose requirements on the water content in tomato pomace, and can effectively extract tomato pomace even for high-moisture content. Background technique [0002] Tomato is the main vegetable variety in my country and one of the important crops in Xinjiang and Inner Mongolia, the main producing areas. However, in recent years, due to the influence of factors such as the rise in raw material prices, the appreciation of the renminbi, the rise in labor costs, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C11/21C07C7/10
Inventor 赵抒娜林旭琦孙屏
Owner COFCO NUTRITION & HEALTH RES INST
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