Process for extracting fluoride-free shrimp oil from dried antarctic krill

An Antarctic krill and shrimp oil technology, applied in the production of fat oil/fat and fat production, can solve the problems of large waste of resources, low protein yield, high fluorine content harmful to human health, etc., to achieve high yield and improve quality Effect

Inactive Publication Date: 2013-01-30
SHANDONG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the high fluorine content of Antarctic krill is harmful to human health, it brings certain difficulties to the direct utilization of this biological resource.
Some researches try to deshell and process fresh shrimp on board

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1 Extracting fluorine-free shrimp oil from Antarctic krill

[0024] The steps are:

[0025] (1) Dried Antarctic krill 100g, add acetone 550ml, extract 3 times at 25°C, extract 1h each time, filter out the dried Antarctic krill; combine the three extracts (1400ml), at 45°C , Acetone was removed by rotary evaporation at -0.09Mpa to obtain 6.20g of shrimp oil, the fluorine content of which was 114.332ug according to the national standard GB / T5009.18-2003.

[0026] (2) Shrimp dregs (85g) were obtained by filtration after the last extraction above, and 550ml of 95% ethanol was added to the shrimp dregs, extracted three times at 25°C, each time for 1 hour, and filtered to filter out the dried Antarctic krill; The three extracts (1400ml) were combined, and the ethanol was removed by rotary evaporation at 55°C and -0.09Mpa to obtain 43.75g of concentrate, the fluorine content of which was 658.45ug.

[0027] (3) Add 220ml of acetone to the concentrate obtained in step (2...

Embodiment 2

[0029] Example 2 Extracting fluorine-free shrimp oil from Antarctic krill

[0030] The steps are:

[0031] (1) Dry Antarctic krill 100g, add acetone 600ml, extract 3 times at 35°C, extract 1h each time, filter the dried Antarctic krill; combine the three extracts (1500ml), at 50°C , Acetone was removed by rotary evaporation at -0.08Mpa, and 6.41g of shrimp oil was obtained. According to the national standard GB / T5009.18-2003, the fluorine content was 118.110ug.

[0032] (2) Shrimp dregs (85g) were obtained by filtration after the last extraction above, and 600ml of 95% ethanol was added to the shrimp dregs, and extracted at 35°C for 3 times, 1 hour each time, and the dried Antarctic krill was filtered out after each extraction; The three extracts (1500ml) were combined, and the ethanol was removed by rotary evaporation at 60°C and -0.08Mpa to obtain 45.10g of concentrate, the fluorine content of which was 662.333ug.

[0033] (3) Add 225ml of acetone to the concentrate obtain...

Embodiment 3

[0035] Example 3 Extracting fluorine-free shrimp oil from Antarctic krill

[0036] The steps are:

[0037] (1) Add 100g of dried Antarctic krill, add 650ml of acetone, extract 3 times at 20°C, extract for 1 hour each time, and filter out the dried Antarctic krill after each extraction; combine the three extracts (1750ml) at 55°C, Acetone was removed by rotary evaporation at -0.07Mpa to obtain 6.57g of shrimp oil, the fluorine content of which was 119.452ug.

[0038] (2) Shrimp dregs (83g) were obtained by filtering after the last extraction above. Add 650ml of absolute ethanol to the shrimp dregs and extract 3 times at 20°C for 1 hour each time. After each extraction, filter out the dried Antarctic krill The three extracts (1750ml) were combined, and the ethanol was removed by rotary evaporation at 65°C and -0.07Mpa to obtain 39.5g of concentrate, the fluorine content of which was 644.278ug.

[0039] (3) Add 200ml of acetone to the concentrate obtained in step (2), stir and ...

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PUM

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Abstract

The invention discloses a process for extracting fluoride-free shrimp oil from dried antarctic krill. The process is characterized in that the process comprises the following steps of: (1) adding acetone to dried antarctic krill, extracting for three times, combining extracting liquid, and evaporating the extracting liquid in a rotation mode to obtain the shrimp oil; (2) filtering the extracting liquid to obtain shrimp residues after the extracting liquid is extracted at last time in the step (1), adding ethanol into the shrimp residues for extracting for three times, combining the extracting liquid, and evaporating the extracting liquid in a rotation mode to obtain a concentrate; (3) adding acetone into the concentrate for stirring and extracting for 0.5-1h twice, filtering and combining the filtrates obtained in the steps (1) and (2), and evaporating in a rotation mode to obtain the shrimp oil; and (4), combining the shrimp oil obtained in the step (1) and the shrimp oil obtained in the step (2), adding ethanol, coldly placing the mixture, removing a precipitate to obtain a supernate, coldly placing the supernate, removing a precipitate to obtain the supernate, and evaporating the supernate in a rotation mode to obtain the fluoride-free shrimp oil. According to the invention, the process for extracting the shrimp oil from the dried antarctic krill is optimized, and the yield of the shrimp oil is high; and because the obtained shrimp oil does not contain fluoride, the quality of the shrimp oil is improved, and contribution to development of related shrimp oil products of the antarctic krill is achieved.

Description

technical field [0001] The invention relates to a process for extracting fluorine-free shrimp oil from Antarctic krill. Background technique [0002] As one of the few trace elements with dual-threshold properties, fluorine plays an irreplaceable role in the construction of biological hard tissues and the promotion of the growth and development of biological organisms within an appropriate range. Conversely, too high or too low is not good for the growth of organisms. The average concentration of fluorine in the world's oceans is 1.30 mg / kg. The fluorine content in marine animals is higher than that in terrestrial animals, however, despite this, the fluorine content in most marine organisms is still not high, with an average of n×10 -4 %. However, the fluorine content of Antarctic krill is very high, reaching n×10 -1 %. [0003] Although Antarctic krill is not the only organism with fluorine-rich ability in the ocean, Antarctic krill is the largest marine biological res...

Claims

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Application Information

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IPC IPC(8): C11B1/10C11B1/02
Inventor 刘代成
Owner SHANDONG NORMAL UNIV
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