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Method for extracting Antarctic krill oil with high phosphatide content from Antarctic krill

An Antarctic krill and krill oil technology, applied in the direction of fat oil/fat production, fat production, etc., can solve the problems of wasting energy, less krill oil, and a lot of energy, so as to reduce processing costs, ensure reliability, and increase content Effect

Active Publication Date: 2012-06-13
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
Shandong Keruier Biological Products Co., Ltd. applied for a patent (CN102071101A) on the method of extracting krill oil from krill in 2011. It uses frozen krill, which needs to be thawed and heated up. Cooling and drying, the extraction and dissolution process must be much higher than normal temperature, and requires a lot of energy. The process is complicated, wastes energy, and the long process causes the deterioration of krill and active ingredients.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0016] (2) Drying: vacuum-dry Antarctic krill; 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 is sheared and extracted twice with a shear emulsifier, the first shearing speed is 6000rpm, the shearing time is 5 minutes, and the second shearing speed is 7000rpm , the cutting time is 5 minutes;

[0020] (6) Extraction: extract the krill powder suspension after shearing and extraction, separate the extract, and then extract the krill powder once, the solid-liquid ratio of krill powder and ethanol is 1:8, stir and extract for 3 hours, the temper...

Embodiment 2

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

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

[0025] (3) Pulverization: pulverize the dried Antarctic krill to 80 mesh, and the pulverization time is 5 minutes;

[0026] (4) Soaking: Soak the krill powder with 90% ethanol solution at 30°C, the solid-to-liquid ratio is 1:8, and the time is 2 hours;

[0027] (5) Shearing: After soaking, the krill powder suspension is sheared and extracted twice with a shear emulsifier, the first shearing speed is 10000rpm, the shearing time is 5 minutes, and the second shearing speed is 4000rpm , the cutting time is 5 minutes;

[0028] (6) Extraction: extract the krill powder suspension after shear extraction, separate the extract, then extract 1 time to the separated krill powder, the solid-to-liquid ratio of krill powder and 91% ethanol solution organic solvent is 1:8, stirred and ...

Embodiment 3

[0031] (1) Heating: After Antarctic krill is caught, heat it 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: pulverize the dried Antarctic krill to 10 mesh, and the pulverization time is 3 minutes;

[0034] (4) Soaking: Soak the krill powder with 95% ethanol solution at 30°C, the solid-liquid ratio is 1:10, and the time is 0.5 hour;

[0035] (5) Shearing: The krill powder suspension after soaking is sheared and extracted twice with a shearing emulsifier. The first shearing speed is 6000rpm, and the shearing time is 5 minutes. It is 10000rpm, and the shearing time is 5 minutes;

[0036] (6) Extraction: extract the krill powder suspension after the shear extraction, separate the extract, then extract the Antarctic krill powder 3 times, and the solid-to-liquid ratio of krill powder and 95% ethanol solution organic solvent is 1 : 2, stirring and extracting for 3 ...

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Abstract

The invention relates to a method for extracting Antarctic krill oil with high phosphatide content from Antarctic krill, which takes fresh Antarctic krill as a raw material, the method comprises the following steps: heating, killing enzyme, disinfecting, removing moisture, drying and crushing, extracting Antarctic krill powder by an organic solvent, cutting and extracting in the extraction process, evaporating the separated extract, removing the residual organic solvent to obtain the Antarctic krill oil with the phosphatide content of 40%-45%. The invention has the advantages of simple operation and high phosphatide content of the final product, and can be the most available method for extracting grease, especially phosphatide-rich grease.

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): C11B1/02C11B1/10C11B1/00
Inventor 余奕珂王元好苏学锋王铭陆冀平王嘉麒于龙李宣延刘建君肖成立
Owner 辽渔南极磷虾科技发展有限公司
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