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Euphausia superba oil extraction method

An Antarctic krill oil and extraction method technology, applied in the field of extracting shrimp oil, to reduce energy consumption, increase return on investment, and avoid pollution

Active Publication Date: 2016-05-04
花巷食新(三明)生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the extraction of krill oil at home and abroad mainly uses whole shrimp as raw material, and there are relatively few studies on the by-products of Antarctic krill processing.

Method used

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  • Euphausia superba oil extraction method
  • Euphausia superba oil extraction method
  • Euphausia superba oil extraction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) The Antarctic krill is harvested four times, and the obtained processing by-products are used as raw materials.

[0026] (2) Cook the raw materials at 100°C for 10min, add distilled water (mass ratio = 1:4), adjust the temperature to 50°C, keep it for 10min, adjust the pH to 8.5, add alkaline protease 3000U / g protein, and enzymatically hydrolyze for 2h Finally, after boiling for 10min to kill the enzyme, after cooling, after filtering with 80 mesh spun gauze, the filtrate was collected.

[0027] (3) After adjusting the filtrate obtained in the above steps to pH 4.5, let it stand for 30 minutes, and centrifuge at 8000 r / min to obtain a paste-like precipitate, which is subjected to freeze-drying treatment.

[0028] (4) Take ethanol as extraction solvent, adopt the method for extracting the shrimp oil in freeze-dried lipoprotein continuously by multistage countercurrent extraction, the number of extraction stages is 3 stages, and the solid-liquid ratio (w / v) of each st...

Embodiment 2

[0030] (1) The Antarctic krill is harvested four times, and the obtained processing by-products are used as raw materials.

[0031] (2) Cook the raw materials at 100°C for 10min, add distilled water (mass ratio = 1:4), adjust the temperature to 30°C, keep it for 10min, adjust the pH to 8.5, add alkaline protease 2000U / g protein, and enzymatically hydrolyze After 1 hour, boil for 10 minutes to inactivate the enzyme, after cooling, filter with 80-mesh spun gauze, and collect the filtrate.

[0032] (3) After adjusting the filtrate obtained in the above steps to pH 4.5, let it stand for 30 minutes, and centrifuge at 8000 r / min to obtain a paste-like precipitate, which is subjected to freeze-drying treatment.

[0033] (4) Take ethanol as extraction solvent, adopt the method for extracting the shrimp oil in freeze-dried lipoprotein continuously by multistage countercurrent extraction, the number of extraction stages is 3 stages, and the solid-liquid ratio (w / v) of each stage extract...

Embodiment 3

[0035] (1) The Antarctic krill is harvested four times, and the obtained processing by-products are used as raw materials.

[0036] (2) Cook the raw material at 100°C for 10min, add distilled water (mass ratio = 1:4), adjust the temperature to 60°C, keep it for 10min, adjust the pH to 8.5, add alkaline protease 5000U / g protein, and enzymolyze After 3 hours, boil for 10 minutes to inactivate the enzyme, after cooling, filter with 80 mesh silk gauze, and collect the filtrate.

[0037] (3) After adjusting the filtrate obtained in the above steps to pH 4.5, let it stand for 30 minutes, and centrifuge at 8000 r / min to obtain a paste-like precipitate, which is subjected to freeze-drying treatment.

[0038] (4) Take ethanol as extraction solvent, adopt the method for extracting the shrimp oil in freeze-dried lipoprotein continuously by multistage countercurrent extraction, the number of extraction stages is 3 stages, and the solid-liquid ratio (w / v) of each stage extraction is 1: 9. T...

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Abstract

The invention discloses a euphausia superba oil extraction method. The method comprises carrying out enzymatic hydrolysis on euphausia superba processing by-products as raw materials, carrying out filtration, carrying out centrifugation treatment, carrying out freeze drying to obtain lipoprotein powder rich in euphausia superba oil, carrying out three-stage countercurrent extraction on the freeze-dried lipoprotein powder through ethanol as an extraction solvent, removing the filter residues, and carrying out evaporation to remove the solvent so that the crude euphausia superba oil rich in phosphatide and astaxanthin is obtained. The euphausia superba oil extraction method prevents by-product waste-caused environmental pollution, produces a euphausia superba oil product with high added value and improves a return rate of investment of the euphausia superba industry.

Description

technical field [0001] The invention belongs to the technical field of food processing and relates to a method for extracting shrimp oil from processing by-products of Antarctic krill. Background technique [0002] Antarctic krill (Euphausia superba), also known as giant krill or Antarctic krill, is one of the largest single species of biological resources on earth. According to statistics, the total biomass of Antarctic krill in the Antarctic Sea is 400-1.55 billion tons. In 2010-2011, the catch of Antarctic krill was only 210,000 tons, far below the allowable catch (8.6 million tons) set by the Antarctic Marine Living Resources Conservation Association, and far below 0.1% of the total biomass. In recent years, with the gradual depletion of traditional fishery resources around the world, the huge Antarctic krill resources in Antarctic waters have attracted the attention of some pelagic fishery developed countries. my country has also listed Antarctic krill resources as the...

Claims

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Application Information

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IPC IPC(8): C11B1/02C11B1/10A23D9/02
CPCA23D9/02C11B1/02C11B1/025C11B1/102C11B1/108
Inventor 姜启兴徐洋夏文水于沛沛许艳顺
Owner 花巷食新(三明)生物科技有限公司
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