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Method for extracting krill oil with high phospholipid content from krill

A technology of high phospholipids and krill oil, applied in edible oil/fat, food science, application, etc., can solve the problems of less krill oil and low extraction rate of supercritical extraction

Active Publication Date: 2012-04-11
辽渔南极磷虾科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are few reports on the extraction of krill oil. The Norwegian Pronova Biopharmaceutical Company applied for a patent (CN101652462A) for preparing marine phospholipids in 2007. It uses carbon dioxide supercritical extraction to obtain marine phospholipids, but supercritical extraction low rate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] (1) Heating: After Antarctic krill is caught, it is heated at 80°C for 10 minutes;

[0016] (2) Drying: vacuum-dry the Antarctic krill separated after heating; the vacuum drying temperature is 50°C, and the vacuum degree is -0.05MPa;

[0017] (3) Pulverization: after drying, the Antarctic krill is pulverized to 80 mesh krill powder, and the pulverization time is 5 minutes;

[0018] (4) Soaking: Soak the krill meal with ethanol at 30°C, the solid-liquid ratio is 1:8, and the time is 2 hours;

[0019] (5) Shearing: After soaking, the krill powder suspension needs to be sheared and extracted twice with a shear emulsifier. The first shearing speed is 6000rpm, and the shearing time is 5 minutes. It is 7000rpm, and the shearing time is 5 minutes;

[0020] (6) Extraction: krill meal was extracted twice in total, the solid-to-liquid ratio of krill meal and ethanol was 1:8, stirred and extracted for 3 hours, and the temperature was 30°C;

[0021] (7) Evaporation: Combine the ...

Embodiment 2

[0023] (1) Heating: After Antarctic krill is caught, heat it at 100°C for 10 minutes;

[0024] (2) Drying: drying the separated Antarctic krill after heating; the vacuum drying temperature is 90°C, and the vacuum degree is -0.1MPa;

[0025] (3) Pulverization: After drying, the krill particles are pulverized to 80 mesh, and the pulverization time is 5 minutes;

[0026] (4) Soaking: Soak the krill meal with 98% ethanol at 30°C, the solid-liquid ratio is 1:8, and the time is 2 hours;

[0027] (5) Shearing: After soaking, the suspension of krill powder was sheared and extracted twice, the first shearing speed was 10000 rpm, and the shearing time was 5 minutes, and the second shearing speed was 4000 rpm, and the shearing time was 5 minutes. minute;

[0028] (6) Extraction: Antarctic krill powder was extracted twice in total, the solid-to-liquid ratio of krill powder and organic solvent was 1:8, stirred and extracted for 3 hours, and the temperature was 30°C;

[0029] (7) Solvent...

Embodiment 3

[0031] (1) Heating: heating the caught fresh Antarctic krill at 50°C for 20 minutes;

[0032] (2) Drying: Antarctic krill is dried; the drying temperature is 40°C, and the vacuum degree is -0.1MPa;

[0033] (3) Pulverization: after drying, the Antarctic krill is pulverized to 10 mesh, and the pulverization time is 3 minutes;

[0034] (4) Soaking: Soak the krill meal at 30°C with a combined solvent of ethanol and water (the ratio is 1:1), the solid-liquid ratio is 1:10, and the time is 0.5 hours;

[0035] (5) Shearing: Antarctic krill meal suspension was sheared and extracted twice after soaking, the first shearing speed was 6000rpm, and the shearing time was 5 minutes, and the second shearing speed was 10000rpm, and the shearing time was 5 minutes;

[0036] (6) Extraction: Antarctic krill meal was extracted 4 times in total, the solid-to-liquid ratio of krill meal and organic solvent was 1:2, stirred and extracted for 3 hours, and the temperature was 30°C;

[0037] (7) Solv...

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Abstract

The invention discloses a method for extracting krill oil with high phospholipid content from krill. In the method, Antarctic krill is taken as a raw material, the dried Antarctic krill raw material is ground into krill powder, the krill powder is extracted by using an organic solvent, shear extraction is adopted in the extraction process, extracting solutions are mixed and residual organic solvent is removed from the mixed extracting solution through evaporation, and the Antarctic krill oil with 40 to 45 percent of phospholipid is obtained. The process is easy to operate, a final product has high phospholipid content, and the method can serve as the most simple and feasible method for extracting oil, particularly oil with rich phospholipid.

Description

technical field [0001] The invention relates to a method for extracting krill oil from Antarctic krill powder, in particular to a method for extracting krill oil rich in high phospholipid content. Background technique [0002] Antarctic krill is a kind of crustacean plankton mainly distributed in the Southern Ocean, and its reserves are astonishing, about 600-1000 million tons. The fat in Antarctic krill accounts for about 2% to 4% of the wet weight. Main fatty acid types and contents include: DHA9.3%~14.2%, EPA15.0%~20.5%, linoleic acid 2.4%~3.8%, linolenic acid 1.3%~3.7%, palmitic acid 21.1%~23.2%, etc. Saturated fatty acids make up the majority. The autolytic enzymes in Antarctic krill can be inactivated by heating to inactivate the enzyme, preventing Antarctic krill from degrading itself. Krill oil rich in phospholipids plays an important role in improving memory, preventing Alzheimer's disease, preventing cardiovascular and cerebrovascular diseases and preventing ath...

Claims

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Application Information

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IPC IPC(8): A23D9/02
Inventor 王元好余奕珂苏学锋王铭陆王嘉麒冀平李宣延于龙刘建君肖成立
Owner 辽渔南极磷虾科技发展有限公司
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