Method for extracting high-quality krill oil and defatted krill protein powder from Antarctic krill powder

An Antarctic krill powder, high-quality technology, applied in peptide preparation methods, chemical instruments and methods, fat oil/fat production, etc., can solve the problems of frequent use of solvents, long waiting time for extraction tanks, cumbersome operations, etc., to achieve The effects of extremely low solvent residue, shortened leaching time, and low operating costs

Active Publication Date: 2012-07-04
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the description of the invention, there is a need for the first extraction tank to extract twice before starting the continuous extraction process. The waitin

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  • Method for extracting high-quality krill oil and defatted krill protein powder from Antarctic krill powder

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Effect test

Embodiment 1

[0038] 1. Feeding: Take 3 parts of dried shrimp powder 1.9kg, 1.7kg and 1.8kg, and put them into stainless steel reaction kettles with a volume of 100L and 150 mesh stainless steel filter screens at the bottom respectively. No., No. II and No. III reactors are connected in series mode, between No. I and No. The liquid port is connected to the pipeline of the solvent storage tank, and the liquid outlet of No. III reactor is connected to the pipeline leading to the pressure-resistant cooling kettle, and each pipeline is equipped with a stop valve so that the shrimp powder is placed at the bottom of the reactor and the valve is closed;

[0039] 2. Subcritical multi-stage solvent extraction technology for continuous extraction of shrimp oil: follow the steps below:

[0040] (1) Inject 10L of propane into No. I and No. II reactors respectively, so that the shrimp meal is fully submerged by propane, start the 1st leaching of the shrimp meal raw materials in No. I and II reactors, an...

Embodiment 2

[0051] 1. Feeding: Take 3 parts of freeze-dried shrimp powder 8.3kg, 8.5kg and 8.2kg, and put them into stainless steel reaction kettles of No. I, No. II and No. III with 150 mesh stainless steel filter screens at the bottom with a volume of 100 L respectively. No., No. II and No. III reactors are connected in series mode, between No. I and No. The liquid port is connected to the pipeline of the solvent storage tank, and the liquid outlet of No. III reactor is connected to the pipeline leading to the pressure-resistant cooling kettle, and each pipeline is equipped with a stop valve so that the shrimp powder is placed at the bottom of the reactor and the valve is closed;

[0052] 2. Subcritical multi-stage solvent extraction technology for continuous extraction of shrimp oil: follow the steps below:

[0053] (1) Inject 20L butane into No. I and No. II reaction kettles respectively, so that the shrimp meal is completely submerged by butane, start the 1st leaching of the shrimp m...

Embodiment 3

[0064] 1. Feeding: Take 3 parts of dried shrimp powder 22.5kg, 23kg and 22.8kg, and put them into stainless steel reaction kettles with a volume of 100L and 150 mesh stainless steel filter screens at the bottom respectively. , No. II and No. III reactors are connected in series mode, between No. I and No. II reactors, and between No. II and III reactors are connected with pipelines with infusion pumps, and No. I and II reactors are fed The outlet is connected to the pipeline of the solvent storage tank, and the liquid outlet of No. III reactor is connected to the pipeline leading to the pressure-resistant cooling kettle, and each pipeline is equipped with a shut-off valve so that the shrimp powder is placed at the bottom of the reactor and the valve is closed;

[0065] 2. Subcritical multi-stage solvent extraction technology for continuous extraction of shrimp oil: follow the steps below:

[0066] (1) Inject 60L of butane into No. I and No. II reactors respectively, so that th...

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Abstract

The invention relates to a method for extracting high-quality krill oil and defatted krill protein powder from Antarctic krill powder, which comprises the following steps of: respectively putting the krill powder into three pressure-resistance stainless steel subcritical extraction reaction kettles (No.1, No.2 and No.3) of which the bottom parts are respectively provided with a stainless steel filter screen; continuously extracting krill oil by adopting the subcritical multistage solvent extraction technology to obtain extracted fluid; collecting, refrigerating and filtering the extracted fluid; then, removing an organic solvent and water through pressure-reduction evaporation to obtain the refined krill oil finally; and heating and reducing the pressure of the reaction kettle after the krill oil is extracted to remove the organic solvent to obtain the defatted krill protein powder. According to the method for extracting the high-quality krill oil and the defatted krill protein powderfrom the Antarctic krill powder, the krill oil is continuously extracted by adopting the subcritical multistage solvent extraction technology, thereby, the content of the krill oil in the extracted fluid injected into the pressure-resistance reaction kettle each time can be ensured to be at a very high level; extraction treatment can be finished on multiple raw materials of the krill powder by using the organic solvent for fewer times, thereby, the usage amount of the solvent is obviously reduced, the extraction time is obviously shortened, and simultaneously, energy consumed when the solventis evaporated is also obviously reduced.

Description

Technical field: [0001] The invention relates to a method for extracting high-quality shrimp oil from shrimp powder, in particular to a method for continuously extracting shrimp oil and defatted krill protein powder in Antarctic krill powder by adopting a subcritical multistage solvent extraction technology. Background technique: [0002] Krill is a small and medium-sized crustacean belonging to the order Krillia of Crustacea. It is known that there are more than 80 kinds of krill in the world, of which Antarctic krill is the most famous one. Antarctic krill refers to the largest number and largest individual distributed in Antarctic waters, also known as giant krill or Antarctic krill. Antarctic krill not only has amazing reserves, but also has extremely rich nutritional value. It is one of the organisms with the highest protein content that people have discovered today. More than 50%, so Antarctic krill resources are called "animal protein library for human beings in the ...

Claims

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Application Information

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IPC IPC(8): C11B1/10C07K1/14
Inventor 许洋冷凯良苗钧魁张建荣孙伟红邢丽红贾福强
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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