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A kind of extraction method and application of volatile oil in Antarctic krill

An Antarctic krill and extraction method technology, which is applied in the directions of essential oils/spices, fat production, etc., can solve the problems of difficult adjustment of steam distillation temperature, influence on drying process, influence on drying process, etc., so as to facilitate drying operation and improve the yield of volatile oil. rate, the effect of reducing the degree of boiling

Active Publication Date: 2019-12-06
SHANDONG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional extraction methods are generally water distillation and steam distillation. In water distillation, a large amount of water and volatile oil will be distilled together, which will affect the drying process, and because some volatile oil will be dissolved in water, it will cause serious waste of volatile oil.
The steam distillation method will also increase the water in the volatile oil, which will also affect the subsequent drying process, and the distillation temperature of the steam is not easy to adjust. If the distillation temperature is too high, the volatile oil will be damaged.

Method used

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  • A kind of extraction method and application of volatile oil in Antarctic krill
  • A kind of extraction method and application of volatile oil in Antarctic krill
  • A kind of extraction method and application of volatile oil in Antarctic krill

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Weigh 80g of fresh Antarctic krill, add 240mL triple-distilled water, extract at 100°C for 2 hours, and obtain a condensate after condensation. Add sodium chloride with a mass fraction of 25% to the condensate, stir to fully dissolve the sodium chloride, and distill at 105°C for 4 hours to obtain a crude volatile oil, add excess anhydrous sodium sulfate to the crude volatile oil , dried at 4°C for 4 hours to obtain Antarctic krill volatile oil. Weigh the quality of volatile oil and calculate the yield of volatile oil, which is 0.652±0.006.

Embodiment 2

[0049] Weigh 80g of fresh Antarctic krill, add 160mL triple-distilled water, extract at 100°C for 3 hours, and obtain a condensate after condensation. Add sodium chloride with a mass fraction of 28.5% to the condensate, stir to fully dissolve the sodium chloride, and perform secondary distillation at 104°C for 5 hours to obtain a crude volatile oil, and add excess anhydrous sodium sulfate to the crude volatile oil , dried at 4°C for 5 hours to obtain Antarctic krill volatile oil. Weigh the quality of volatile oil and calculate the yield of volatile oil, which is 0.612±0.003.

Embodiment 3

[0051] Weigh 80g of fresh Antarctic krill, add 320mL triple-distilled water, extract at 100°C for 3 hours, and obtain a condensate after condensation. Add sodium chloride with a mass fraction of 30% to the condensate, stir to fully dissolve the sodium chloride, and conduct secondary distillation at 103°C for 3 hours to obtain a crude volatile oil, add excess anhydrous sodium sulfate to the crude volatile oil , dried at 4°C for 6 hours to obtain Antarctic krill volatile oil. Weigh the quality of volatile oil and calculate the yield of volatile oil, which is 0.365±0.004.

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Abstract

The invention discloses a method for extracting volatile oil from Euphausia superb. The method comprises the following steps: performing primary distillation on the Euphausia superb by adopting a water distillation method; adding salt into obtained condensate, and performing secondary distillation on the condensate; drying a crude product of the volatile oil obtained by the secondary distillation to obtain the volatile oil. According to the method, sodium chloride is added into the condensate which is obtained by the primary distillation for performing the secondary distillation, so that the distillation temperature is increased, the extracting efficiency of the volatile oil in the Euphausia superb is improved, the boiling degree of water is retarded, the content of the water in the condensate after the secondary distillation is reduced, serious waste of the volatile oil is avoided, and the drying operation is facilitated.

Description

technical field [0001] The invention relates to a method for extracting volatile oil from Antarctic krill and its application. Background technique [0002] Volatile oil, also known as essential oil, is a general term for a class of oily liquids that are volatile, immiscible with water and can be distilled out with water vapor. They have a strong aromatic smell and are widely found in plants, Chinese herbal medicines and animals. . There are complex chemical components in volatile oils, and various components determine that volatile oils have various physiological functions. Therefore, the research on volatile oils is increasing, and the research directions are mainly focused on the optimization of preparation conditions, component analysis, functional tests, etc., which have a wide range of applications. prospects and commercial value. [0003] Antarctic krill (scientific name Euphausia superba) is a krill that lives in Antarctic waters. It is shaped like a small shrimp a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B9/02
CPCC11B9/027
Inventor 马善利刘代成
Owner SHANDONG NORMAL UNIV