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Method for extracting EPA-rich fatty acid from garlic algae

A fatty acid and algae technology, applied in the direction of fat production, fat oil/fat production, fat oil/fat refining, etc., can solve the problems of low production efficiency, backward technology, high cholesterol content, etc.

Pending Publication Date: 2020-05-05
TIANJIN UNIV MARINE TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Deep-sea fish oil and algae are the main sources of EPA. EPA extracted from fish oil has a high cholesterol content and a fishy smell, which greatly affects the quality of the product, and the composition and content of EPA in fish oil vary with fish species, seasons and other factors. And produce different changes, a large amount of water pollutants are accumulated in the fish oil fat, so the use of fish oil as raw material has the disadvantage of instability
Finding safe and reliable sources of raw materials has become the main development trend of research on EPA. At present, people tend to use microalgae, fungi, etc. to extract EPA. However, the existing microalgae extraction process for preparing EPA is relatively backward, with low production efficiency and low yield. , cannot efficiently realize large-scale factory production

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  • Method for extracting EPA-rich fatty acid from garlic algae
  • Method for extracting EPA-rich fatty acid from garlic algae

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1: a kind of method that extracts rich in EPA fatty acid from garlic algae, concrete steps are as follows:

[0015] (1) Pretreatment The algae raw material is crushed, and then different acid-base salts are added for ultrasonic wall breaking treatment, and the filtrate is obtained by filtration;

[0016] (2) Fatty acid extraction: the filtrate was extracted by supercritical carbon dioxide extraction method, the extraction temperature was 30°C, the extraction time was 10min, the extraction pressure was 25Mpa, and the carbon dioxide flow rate was 50mL / min to obtain the extract, separate and obtain crude oil;

[0017] (3) Primary purification The crude oil is sequentially passed through an anion exchange resin column and a cation exchange resin column for ion exchange treatment to obtain primary purified oil;

[0018] (4) Secondary purification The primary purified oil is subjected to secondary distillation and dehydration to obtain secondary purified oil for de...

Embodiment 2

[0019] Embodiment 2: a kind of method that extracts rich in EPA fatty acid from garlic algae, concrete steps are as follows:

[0020] (1) Pretreatment The algae raw material is crushed, and then different acid-base salts are added for ultrasonic wall breaking treatment, and the filtrate is obtained by filtration;

[0021] (2) Fatty acid extraction: extract the filtrate by supercritical carbon dioxide extraction method, the extraction temperature is 40°C, the extraction time is 60min, the extraction pressure is 30Mpa, the carbon dioxide flow rate is 200 mL / min, the extract is obtained, separated, and crude oil is obtained ;

[0022] (3) Primary purification The crude oil is sequentially passed through an anion exchange resin column and a cation exchange resin column for ion exchange treatment to obtain primary purified oil;

[0023] (4) Secondary purification The primary purified oil is subjected to secondary distillation and dehydration to obtain secondary purified oil for de...

Embodiment 3

[0025] Embodiment 3: a kind of method that extracts rich in EPA fatty acid from garlic algae, concrete steps are as follows:

[0026] (1) Pretreatment The algae raw material is crushed, and then different acid-base salts are added for ultrasonic wall breaking treatment, and the filtrate is obtained by filtration;

[0027] (2) Fatty acid extraction: The filtrate was extracted by supercritical carbon dioxide extraction method, the extraction temperature was 50°C, the extraction time was 80min, the extraction pressure was 40Mpa, and the carbon dioxide flow rate was 300 mL / min to obtain the extract, separate and obtain crude oil ;

[0028] (3) Primary purification The crude oil is sequentially passed through an anion exchange resin column and a cation exchange resin column for ion exchange treatment to obtain primary purified oil;

[0029] (4) Secondary purification The primary purified oil is subjected to secondary distillation and dehydration to obtain secondary purified oil fo...

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Abstract

The invention discloses a method for extracting EPA-rich fatty acid from garlic algae. Supercritical carbon dioxide is adopted for extraction. The method has the advantages of no chemical reaction inthe extraction process, no odor, no odor, no toxicity, repeated utilization in production, energy conservation, effective component destroy prevention, no solvent residue in the extraction process, and prevention of generation of harmful substances. Through secondary purification treatment, effective and comprehensive removal of trace elements, sugars, proteins and other impurities is achieved toobtain pure EPA fatty acids.

Description

technical field [0001] The invention belongs to the technical field of fatty acid oil preparation, and in particular relates to a method for extracting fatty acids rich in EPA from garlic algae. Background technique [0002] EPA is a series of polyunsaturated fatty acids with eicosapentaenoic acid, which has a unique structure of five unsaturated bonds, which makes it have special functions and influences on human health. EPA can lower cholesterol, lower blood fat, prevent and improve atherosclerosis, and have good curative effects in preventing and treating cardiovascular and cerebrovascular diseases, diabetes and senile dementia. Deep-sea fish oil and algae are the main sources of EPA. EPA extracted from fish oil has a high cholesterol content and a fishy smell, which greatly affects the quality of the product, and the composition and content of EPA in fish oil vary with fish species, seasons and other factors. And produce different changes, a large amount of water pollut...

Claims

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Application Information

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IPC IPC(8): C11B1/04C11B1/10C11B3/00
CPCC11B1/04C11B1/104C11B3/001
Inventor 陈冠益刘菊平李湘萍张建光
Owner TIANJIN UNIV MARINE TECH RES INST