Organic-solvent-free ultrasonic extracting method for ginger essential oil

An organic solvent, ultrasonic technology, applied in the direction of essential oil/spice, fat production, etc., can solve the problems of high energy consumption, long distillation time and high cost

Pending Publication Date: 2021-10-29
黄连生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, the water vapor distillation method is simple to operate, but the disadvantage is that the distillation time is long, generally takes about 7h, and the energy consumption is large; the solvent method needs to use a large amount of organic solvents such as ether, petroleum ether, etc., which will leave a large amount of organic solvents in the extracted ginger essential oil. ; Supercritical CO 2 The extraction method is based on CO 2 As a fluid, ginger oil is extracted in a supercritical state, which requires relatively harsh reaction conditions and high cost

Method used

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  • Organic-solvent-free ultrasonic extracting method for ginger essential oil
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  • Organic-solvent-free ultrasonic extracting method for ginger essential oil

Examples

Experimental program
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Effect test

Embodiment 1

[0061] A method for organic solvent-free ultrasonic extraction of ginger essential oil, the steps are as follows:

[0062] (1) Get 1kg of fresh ginger, squeeze it mechanically, and separate the liquid slag to obtain ginger juice and ginger slag;

[0063] (2) The ginger slag obtained in step (1) is placed in a vacuum low-temperature drying box for processing, and the set temperature is 80° C., kept for 20 minutes, and the temperature for drying by vacuuming is 60° C., and kept for 20 minutes, so that the moisture contained in the ginger is reduced. The mass percentage is lower than 5%, and dried ginger residue is obtained;

[0064] (3) pulverize the dried ginger slag obtained in step (2) with a pulverizer to 40 orders, and obtain ginger slag powder;

[0065] (4) The ginger slag powder obtained in the step (3) is mixed with water and soaked to obtain a mixed slurry; wherein, the ratio of the quality of the ginger slag powder to the volume of water is 1:5, and it is placed in th...

Embodiment 2

[0070] A method for organic solvent-free ultrasonic extraction of ginger essential oil, the steps are as follows:

[0071] (1) Get 1kg of fresh ginger, squeeze it mechanically, and separate the liquid slag to obtain ginger juice and ginger slag;

[0072] (2) The ginger slag obtained in step (1) is placed in a vacuum low-temperature drying box for processing, and the set temperature is 70° C., kept for 30 minutes, and the temperature for drying by vacuuming is 50° C., and dried for 30 minutes, so that the moisture contained in the ginger is reduced. The mass percentage is lower than 5%, and dried ginger residue is obtained;

[0073] (3) Grinding the dried ginger slag obtained in step (2) with a pulverizer to 50 orders to obtain ginger slag powder;

[0074] (4) The ginger slag powder obtained in the step (3) is mixed with water and soaked to obtain a mixed slurry; wherein, the ratio of the quality of the ginger slag powder to the volume of water is 1:8, and it is placed in the ...

Embodiment 3

[0079] A method for organic solvent-free ultrasonic extraction of ginger essential oil, the steps are as follows:

[0080] (1) Get 1kg of fresh ginger, squeeze it mechanically, and separate the liquid slag to obtain ginger juice and ginger slag;

[0081] (2) The ginger slag obtained in step (1) is placed in a vacuum low-temperature drying box for processing, and the set temperature is 60° C., kept for 40 minutes, and the temperature for drying by vacuuming is 40° C., and kept for 40 minutes, so that the moisture contained in the ginger is reduced. The mass percentage is lower than 5%, and dried ginger residue is obtained;

[0082] (3) Grinding the dried ginger slag obtained in step (2) with a pulverizer to 60 orders to obtain ginger slag powder;

[0083] (4) The ginger slag powder obtained in the step (3) is mixed with water and soaked to obtain a mixed slurry; wherein, the ratio of the quality of the ginger slag powder to the volume of water is 1:10, and it is placed in the ...

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Abstract

The invention provides an organic-solvent-free ultrasonic extracting method for ginger essential oil, and belongs to the technical field of applied chemical industry. The fresh ginger is squeezed in advance and then dried at a low temperature, so that aroma components and active substances can be reserved; according to the method, the fresh ginger is crushed after being dried at low temperature, so that essential oil component overflow during extracting is facilitated, and the yield of the ginger essential oil is increased; according to the method, mixed slurry is placed in an ultrasonic extracting device for extracting, ginger cells are promoted to be broken and deformed, ginger oil in ginger medium molecules is accelerated to escape, and the method is short in extracting time and high in yield; the extracting method provided by the invention adopts water as an extracting solvent, does not adopt an organic reagent, is environment-friendly, can well protect the activity of separated substances, and is not polluted by the solvent; and the extracted oil layer is mixed with the ginger juice, and the salt in the oil layer is carried by the ginger juice, so that the salt in the oil layer is separated, and the quality of the ginger essential oil is improved.

Description

technical field [0001] The invention relates to the field of applied chemical technology, in particular to a method for ultrasonically extracting ginger essential oil without an organic solvent. Background technique [0002] Ginger is a kind of spice often used in people's life, and it is also a kind of medicinal and edible plant. Ginger essential oil refers to the volatile oil and non-volatile oil obtained from the rhizome of ginger, as well as some resinous substances. It is a brown oily clear liquid. Studies have shown that: Ginger essential oil has a long history of medicinal use. It has the functions of dispelling cold and dehumidification, dispelling wind and relieving pain, warming meridian and dredging collaterals, preventing motion sickness such as motion sickness, boats, and airplanes, and anti-aging effects; In the product; Gingerol in ginger essential oil has the functions of strengthening the heart, lowering blood pressure, lowering blood fat, lowering blood su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/02
CPCC11B9/025
Inventor 黄连生张子凤
Owner 黄连生
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