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Method for fast extracting lycopene

A technology of lycopene and lycopene oil, which is applied in the field of rapid extraction of lycopene by ultrasonic/microwave synergy, can solve the problems of low extraction efficiency and long operation time, and achieve high extraction rate, low solvent consumption and short extraction time The effect of shortening

Inactive Publication Date: 2008-02-13
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The various extraction methods mentioned above have their own uniqueness, but they also have disadvantages such as low extraction efficiency and long operation time.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 1) Wash 10Kg of tomatoes, remove the stalks and skins, and use a scraper beater to beat the pulp, then use a sedimentation centrifuge to centrifuge the slurry (2000rpm, 10min), discard the supernatant and save the sediment for later use;

[0019] 2) The precipitate obtained in step 1) is vacuum-dried at 80° C. with a vacuum degree of 0.1 MPa, and the moisture is adjusted to obtain about 0.25 Kg of tomato puree with a moisture content of 70%;

[0020] 3) The lycopene is extracted by ultrasonic microwave assisted organic solvent reflux extraction. Take step 2) obtained tomato puree 100g and disperse in the extraction container, add ethyl acetate 300mL according to the ratio of solid-liquid ratio 1: 3 (tomato puree mass: solvent volume) and install the reflux condensing device, after checking that the airtightness is intact, Turn on the ultrasonic (68KHz, 300W) and microwave (2450MHz, 300W) to directly act on the extraction system for extraction, the duration is 7min, and ...

Embodiment 2

[0023] 1) After 5Kg of tomato peel residue is separated by running water to peel off the skin and seeds, use a sedimentation centrifuge (6000rpm, 2min), discard the supernatant and save the sediment for later use;

[0024] 2) The precipitate obtained in step 1) is vacuum-dried at 60°C with a vacuum degree of 0.05MPa, and the moisture content is adjusted to 80% to obtain about 0.3Kg of the extract;

[0025] 3) The lycopene is extracted by ultrasonic microwave assisted organic solvent reflux extraction. Take 100g of the extract to be extracted from step 2) and disperse it in the extraction container, add 700mL of ethanol at a ratio of 1:7 (mass of tomato puree: volume of solvent) and install a reflux condensing device. After checking that the airtightness is intact, open the Ultrasonic (40KHz, 150W) and microwave (915MHz, 10W) ​​directly act on the extraction system for extraction, the duration is 1min, and the extraction stage is 1;

[0026] 4) Finally, the lycopene extract wa...

Embodiment 3

[0028] 1) 20Kg red watermelon is beaten with a scraper beater and then coarsely filtered to remove the watermelon seeds. The slurry is centrifuged with a sedimentation centrifuge (6000rpm, 2min), and the supernatant is discarded and the sediment is reserved for later use;

[0029] 2) The precipitate obtained in step 1) is vacuum-dried at 40°C with a vacuum degree of 0.08MPa, and the water content is adjusted to 75% to obtain about 0.3Kg of the extract;

[0030] 3) The lycopene is extracted by ultrasonic microwave assisted organic solvent reflux extraction. Get 100g of the extract to be obtained in step 2) and disperse it in the extraction container, add petroleum ether and acetone mixed solvent (volume ratio of 10:1) 1000mL according to the ratio of solid-liquid ratio 1:10 (mass of the extract to be extracted:solvent volume) and After installing the reflux condensing device and checking that the airtightness is intact, turn on the ultrasonic (16KHz, 50W) and microwave (2450MHz...

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Abstract

A method for quickly extracting lycopene belongs to the technical field of food ingredients. The present invention extracts lycopene from raw materials rich in lycopene. After preliminary treatment of the raw materials rich in lycopene, ultrasonic / microwave collaborative technology is used to assist solvent reflux to extract lycopene, and the lycopene oleoresin is obtained after concentration. products; and recover solvents. The method of the invention has simple steps, greatly shortens the extraction time, and avoids the loss of lycopene during the extraction process; the extraction rate is high, and the highest extraction rate can reach 97%; the extraction process adopts a closed system, consumes less solvent, reduces costs, and at the same time increases It ensures the safety of production; using microwave as the heating source, the energy directly acts on the extraction system, reducing the waste of energy and having the characteristics of energy saving.

Description

technical field [0001] A method for rapidly extracting lycopene belongs to the technical field of food ingredients, and in particular relates to a method for rapidly extracting lycopene by using ultrasonic wave / microwave synergy. Background technique [0002] Lycopene (C 40 h 56 , molecular weight: 536.85) is a straight-chain hydrocarbon composed of 11 conjugated and two non-conjugated carbon-carbon double bonds, and is an intermediate in the biosynthesis of other carotenoids. The pure product of lycopene is dark red needle-like crystals. As a pigment itself, lycopene can be used for coloring cosmetics, food, etc.; in addition, due to its various biological effects, such as anti-cancer and Lycopene is a functional food ingredient that has attracted much attention due to its anti-cancer, prevention and treatment of cardiovascular diseases. [0003] Natural lycopene mainly exists in food raw materials such as tomato, watermelon, plum, pomegranate and red grapefruit, and als...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C11/21C07C7/10C09B61/00
Inventor 张连富刘泽龙
Owner JIANGNAN UNIV
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