Method for extracting euphausia superba oil based on low-temperature continuous phase change technology

A technology of low-temperature continuous phase change and Antarctic krill oil, which is applied in the direction of fat oil/fat production, fat oil/fat refining, fat production, etc. It can solve the problems of large reagent volume, weakened water holding capacity, solvent residue, etc., and achieve protection quality, The effect of improving the extraction rate and avoiding the generation of harmful components

Pending Publication Date: 2021-12-07
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Industrial shrimp oil extraction uses whole shrimp as raw material and is leached with organic solvents, which requires a large amount of reagents and solvent residues, which poses food safety hazards and is not friendly to the environment.
Supercritical carbon dioxide extraction requires less solvent, and the extraction efficiency is relatively high, but there are also limitations. Most of the Antarctic krill oil extracted by this method is triglyceride, which hardly contains phospholipids; Inactivation treatment, high temperature conditions will affect the lipase and also denature the heat-labile Antarctic krill muscle protein. Due to the structural change, the renaturation of the denatured protein will become particularly difficult, e

Method used

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  • Method for extracting euphausia superba oil based on low-temperature continuous phase change technology
  • Method for extracting euphausia superba oil based on low-temperature continuous phase change technology

Examples

Experimental program
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Example Embodiment

[0024] Example 1

[0025] A method of extracting Antarctic krill oil based on low-temperature continuous phase change technology, including the following steps:

[0026] S1 uses the antidepole krill powder, and the temperature of the heating dryer is used to dry at about 30 ° C, and the moisture content is ≤10%.

[0027] S2 The Antanzoleum powder treated step S1 is 1.0 kg, which is loaded into the extractor of the continuous phase change extraction device, and 3 l is added to 3 h.

[0028] S3 The extracted kettle described in step S2 is compressed into a liquid under the extraction temperature of 0.45 MPa, and the n-butane is compressed into a liquid, flowing through the extract in the flow rate of 60 l / h, and extracts 10 min, extracting the krill. After the oil enters the parsing, analyze the temperature of 60 ° C, analyze the pressure of 0.25 MPa; by heating, the positive butane phase changes into a gas, and then the liquid flows through the extracted kettle, and the material ...

Example Embodiment

[0030] Example 2

[0031] A method of extracting Antarctic krill oil based on low-temperature continuous phase change technology, including the following steps:

[0032] S1 uses the antidepole krill powder, and the temperature of the heating dryer is used to dry at about 30 ° C, and the moisture content is ≤10%.

[0033] S2 The Antanzoleum powder treated step S1 is 1.0 kg, which is loaded into the extractor of the continuous phase change extraction device, and 3 l is added to 3 h.

[0034] S3 The extracts described in step S2 were compressed into a liquid at a liquid at a extract temperature of 40 ° C, and the p-butane was compressed into a liquid, flowing through the extracted kettle at 60 l / h, and extracted 15 min, extracting the krill. After the oil enters the parsing, analyze the temperature of 60 ° C, analyze the pressure of 0.25 MPa; by heating, the positive butane phase changes into a gas, and then the liquid flows through the extracted kettle, and the material is extract...

Example Embodiment

[0036] Example 3

[0037] A method of extracting Antarctic krill oil based on low-temperature continuous phase change technology, including the following steps:

[0038] S1 uses the antidepole krill powder, and the temperature of the heating dryer is used to dry at about 30 ° C, and the moisture content is ≤10%.

[0039] S2 The Antanzoleum powder treated step S1 is 1.0 kg, which is loaded into the extractor of the continuous phase change extraction device, and 3 l is added to 3 h.

[0040] S3 The extracts described in step S2 were compressed into a liquid under the extraction temperature of 40 ° C, extracting pressure 0.65 MPa, flowing through the extract in the flow rate of 60 l / h, and extracted for 20 min, extracting krill After the oil enters the parsing, analyze the temperature of 60 ° C, analyze the pressure of 0.25 MPa; by heating, the positive butane phase changes into a gas, and then the liquid flows through the extracted kettle, and the material is extracted again. Afte...

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Abstract

The invention belongs to the technical field of extraction and separation of bioactive substances, and particularly relates to a method for extracting euphausia superba oil based on a low-temperature continuous phase change technology. The method comprises the following steps: by taking euphausia superba powder as a raw material, pretreating the euphausia superba powder, putting the pretreated euphausia superba powder into an extraction kettle, adding ethanol, conducting soaking for a period of time, and conducting extracting under the process conditions that the temperature is 25-65 DEG C, the pressure is 0.2-1.0 Mpa, the desorption temperature is 40-80 DEG C and the desorption pressure is 0.1-0.8 Mpa. According to the method, low-temperature continuous phase-change extraction equipment is applied, the euphausia superba powder is soaked in ethanol in an extraction kettle and then subjected to low-temperature continuous phase-change continuous extraction, and on the basis of ensuring that 90% or more of grease is extracted, water-soluble and fat-soluble component substances are reserved to the greatest extent. The extraction process disclosed by the invention has the advantages of safety, high efficiency, no solvent residue, no damage to product components and avoidance of generation of harmful components, and the obtained krill oil nutrients are good in quality and can realize industrial development.

Description

technical field [0001] The invention relates to the technical field of extraction and separation of biologically active substances, in particular to a method for extracting Antarctic krill oil based on low-temperature continuous phase change technology. Background technique [0002] Antarctic krill contains krill oil, which is rich in lipid components of various functional ingredients such as phospholipids, EPA, DHA, and astaxanthin. Studies have found that Antarctic krill oil has important biological functions, has good absorbability in the human body, and can effectively reduce the levels of total cholesterol, triglycerides and low-density lipoprotein cholesterol in serum, thereby reducing blood lipids and preventing Cardiovascular and cerebrovascular diseases and the prevention of atherosclerosis and other diseases. [0003] The extraction methods of krill oil in the prior art mainly include organic solvent extraction, supercritical fluid extraction, enzymatic hydrolysis...

Claims

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Application Information

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IPC IPC(8): C11B1/02C11B1/10C11B3/00
CPCC11B1/02C11B1/10C11B3/00
Inventor 赵力超刘悦曹庸马颖川
Owner SOUTH CHINA AGRI UNIV
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