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Method for removing dissolvent residual from lycopene oleoresin

A technology of lycopene oil and resin, which is applied in the direction of organic chemistry, distillation purification/separation, etc., can solve the problems that organic solvent residues cannot be fully removed, limit the wide application of lycopene, and cannot completely remove solvent residues, etc., to achieve easy operation, Enhanced activity and high product quality

Active Publication Date: 2009-03-11
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] There are chemical solvent residues in the lycopene oleoresin obtained by the organic solvent extraction method that is widely used now. These chemical solvents are neurotoxic or potentially carcinogenic, and have potential hazards to human health, which limits the wide application of lycopene.
Lycopene is easily destroyed by conventional heating distillation, and organic solvent residues cannot be fully removed
At present, there are also reports on the use of supercritical carbon dioxide fluid to remove solvent residues in lycopene oleoresin, but this method still cannot completely remove solvent residues.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A method for removing solvent residues in lycopene oleoresin, using lycopene oleoresin as raw material, wherein the content of lycopene is 7.23%, the content of n-hexane is 2%, and the content of ethyl acetate is 0.8%. The steps are as follows:

[0017] (1) Add 50ml of lycopene oleoresin extract to be treated in the material bottle;

[0018] (2) After checking and confirming that the system is airtight, turn on the vacuum pump to degas the material. After the vacuum degree is stable, the degassing process is completed;

[0019] (3) Set the scraper speed to 96r / min, feed rate to 10ml / min, molecular distillation pressure to 6.5Pa, distillation temperature to 85°C, water circulation cooling, condensation temperature to 40°C, open the material valve, and the material flows into the distillation body for molecular distillation. Distillation, the impurities contained in the oleoresin enter the distillate component, and the remaining residue component is collected as the purif...

Embodiment 2

[0022] A method for removing solvent residues in lycopene oleoresin, using lycopene oleoresin as raw material, wherein the content of lycopene is 5.69%, the content of ethanol is 0.6%, and the content of ethyl acetate is 0.4%. The steps are as follows:

[0023] (1) Add 50ml of lycopene oleoresin extract to be treated in the material bottle;

[0024] (2) After checking and confirming that the system is airtight, turn on the vacuum pump to degas the material. After the vacuum degree is stable, the degassing process is completed;

[0025] (3) Set the scraper speed to 96r / min, feed rate to 12ml / min, molecular distillation pressure to 2.5Pa, distillation temperature to 100°C, water circulation cooling, condensation temperature to 40°C, open the material valve, and the material flows into the distillation body for molecular distillation. Distillation, the impurities contained in the oleoresin enter the distillate component, and the remaining residue component is collected as the pur...

Embodiment 3

[0028] A method for removing solvent residues in lycopene oleoresin, using lycopene oleoresin as raw material, wherein the content of lycopene is 6.14%, the content of ethanol is 1%, and the content of ethyl acetate is 0.9%. The steps are as follows:

[0029] (1) Add 50ml of lycopene oleoresin extract to be treated in the material bottle;

[0030] (2) After checking and confirming that the system is airtight, turn on the vacuum pump to degas the material. After the vacuum degree is stable, the degassing process is completed;

[0031] (3) Set the scraper speed to 110r / min, feed rate to 15ml / min, molecular distillation pressure to 0.5Pa, distillation temperature to 85°C, water circulation cooling, condensation temperature to 40°C, open the material valve, and the material flows into the distillation body for molecular distillation. Distillation, the impurities contained in the oleoresin enter the distillate component, and the remaining residue component is collected as the purif...

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PUM

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Abstract

The invention discloses a method for removing a residual solvent in a lycopene oil resin, which belongs to the technical field of separating and purifying the residual solvent in the food processing. An extraction of the lycopene oil resin to be treated is added into a material bottle; after checking and confirming of an airtight system, a vacuum pump is started to degas the material; after a numerical value of a vacuum degree is stabilized, the procedure of degassing is completed. Scraper rotational speed, feeding velocity, pressure of molecular distillation, distillation temperature and condensing temperature are set, a material valve is opened to allow the material to flow into a distillation body so as to undergo the molecular distillation, impurities contained in the oil resin enter a distillate component, and the remaining residue component, namely the purified lycopene oil resin is collected. Because the molecular distillation technology is adopted, the method can not only remove the residual solvent in the lycopene oil resin and reduce contents of other impurities in the oil resin, but also can improve safety of the lycopene oil resin and density of lycopene, thereby contributing to strengthening the activity of the lycopene.

Description

technical field [0001] The invention belongs to the technical field of separation and purification of solvent residues in food processing, in particular to a method for removing solvent residues in lycopene oleoresin. Background technique [0002] Lycopene is a straight-chain hydrocarbon composed of 11 conjugated double bonds and 2 non-conjugated double bonds. It is a kind of carotenoid, soluble in fats and lipids, and has a red color. Lycopene has a wide range of physiological functions, including anti-oxidation, improving immunity, anti-cancer, effectively preventing the oxidation of low-density lipoprotein, anti-aging, preventing light radiation damage, etc. [0003] At present, lycopene is mainly extracted with organic solvents such as ethyl acetate and n-hexane, and then concentrated in a vacuum to obtain the crude extract of lycopene—lycopene oleoresin. Because it contains a certain amount of organic solvent residues, it will cause potential harm to human health. [...

Claims

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Application Information

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IPC IPC(8): C07C11/21C07C7/04
Inventor 陈芳赵广华廖小军张程胡小松
Owner CHINA AGRI UNIV
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