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Carbon dioxide extraction method of garlic essential oil

A technology of garlic essential oil and carbon dioxide, which is applied in the direction of essential oil/spice, fat production, etc., can solve the problems of low extraction rate, influence of active ingredients, waste, etc., and achieve the effect of improving extraction rate and benefiting industrial production

Inactive Publication Date: 2018-02-09
徐州光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

According to the research, the content of alliin in the head, stem and leaf of garlic is 1.17%, 0.41% and 0.13% respectively. However, in the current harvesting method of garlic, only the head part of garlic is used. The remaining garlic stems after harvesting are mostly directly buried or burned on the spot. During the burning process, the alliin contained in the garlic stems is easily cracked into sulfide, which not only pollutes the environment, but is also very wasteful.
[0003] In addition, currently there are two common extraction methods for extracting garlic essential oil: using steam distillation to distill the garlic essential oil in garlic, and the extraction rate is low; using organic solvents to leach garlic oil and then distilling and separating, but this method is complicated to operate , The separation process has a large workload, low yield and has a serious impact on its active ingredients

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1 of the present invention discloses a kind of carbon dioxide extraction method of garlic essential oil, comprises the following steps:

[0026] 1) Screen out a garlic stalk, and after cleaning the garlic stalk, use a pulverizer to crush it, and further grind the crushed garlic stalk into a slurry to make a garlic stalk pulp, and screen out insect-free 1. The garlic without mildew is pulverized by a pulverizer, and the crushed garlic is further beaten into a slurry;

[0027] 2) Mix garlic pulp and garlic stem pulp in a mass ratio of 1:1 to obtain mixed garlic pulp;

[0028] 3) Put the mixed garlic paste in an aerobic environment and continue to ferment at 30° for 6 hours to obtain the fermented mixed garlic paste;

[0029] 4) Extract the above-mentioned fermented mixed garlic pulp with 75% ethanol at 30°C for 8 hours, and filter after the extraction to obtain mixed garlic pulp extract, wherein the mass ratio of fermented garlic puree and extractant is 3 :2;...

Embodiment 2

[0037] Embodiment 2 of the present invention discloses a kind of carbon dioxide extraction method of garlic essential oil, comprises the following steps:

[0038] 1) Screen out a garlic stalk, and after cleaning the garlic stalk, use a pulverizer to crush it, and further grind the crushed garlic stalk into a slurry to make a garlic stalk pulp, and screen out insect-eaten 1. The garlic without mildew is pulverized by a pulverizer, and the crushed garlic is further beaten into a slurry;

[0039] 2) Mix garlic pulp and garlic stem pulp in a mass ratio of 2:1 to obtain mixed garlic pulp;

[0040] 3) Put the mixed garlic paste in an aerobic environment and continue to ferment it at 35° for 7 hours to obtain the fermented mixed garlic paste;

[0041] 4) Extract the above-mentioned fermented mixed garlic pulp with 75% ethanol at 32°C for 9 hours, and filter after the extraction to obtain mixed garlic pulp extract, wherein the mass ratio of fermented garlic puree and extractant is 3 ...

Embodiment 3

[0049] Embodiment 3 of the present invention discloses a kind of carbon dioxide extraction method of garlic essential oil, comprises the following steps:

[0050] 2) Screen out a garlic stalk, and after cleaning the garlic stalk, use a pulverizer to crush it, and further beat the crushed garlic stalk into a slurry to make a garlic stalk pulp, and screen out insect-eaten 1. The garlic without mildew is pulverized by a pulverizer, and the crushed garlic is further beaten into a slurry;

[0051] 2) Mix garlic pulp and garlic stem pulp in a mass ratio of 3.5:1 to obtain mixed garlic pulp;

[0052] 3) Put the mixed garlic paste in an aerobic environment and continue to ferment at 40° for 8 hours to obtain the fermented mixed garlic paste;

[0053] 4) Extract the above-mentioned fermented mixed garlic pulp with 75% ethanol at 35°C for 10 hours, and filter after the extraction to obtain mixed garlic pulp extract, wherein the mass ratio of fermented garlic puree and extractant is 3 ...

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Abstract

The invention discloses a carbon dioxide extraction method of garlic essential oil. The method comprises the following steps that garlic heads and garlic stems of garlics are respectively crushed andbeaten into a paste shape; then, mixing is performed to form mixed garlic paste; the characteristic that the self specific garlic ammonia enzyme of the garlics can oxidize the garlic paste into allicin under the aerobic condition is utilized, so that the mixed garlic paste is subjected to fermentation treatment so as to improve the content of effective ingredients in the garlic essential oil; then, an extracting agent is used for extracting and filtering the fermented garlic paste; filter liquid is subjected to carbon dioxide extraction and grading pressure reduction separation; the finished product of the garlic essential oil is finally obtained. In addition, the principle that ice points are different is utilized, so that the water and the extracting agent in residual juice of the mixedgarlic paste extracting liquid after the extraction are sequentially removed, so that the garlic essential oil is obtained again. When the carbon dioxide extraction method of the garlic essential oilprovided by the invention is used for extracting the garlic essential oil, the extraction rate of the garlic essential oil is effectively improved; meanwhile, the effective ingredients of the target product are reserved to the greatest degree; the industrial production is facilitated.

Description

technical field [0001] The invention relates to an extraction process of garlic essential oil, in particular to a carbon dioxide extraction method of garlic essential oil. Background technique [0002] The main component of garlic essential oil is allicin, which is produced by the transformation of alliin under the action of allinase. Because garlic has antibacterial effects, it has gradually received medical attention in recent years. At the same time, garlic is a food with a long history. Its special spicy taste and strong taste have been praised by gourmets all the year round, which makes the area of ​​garlic planted increase year by year. According to the research, the content of alliin in the head, stem and leaf of garlic is 1.17%, 0.41% and 0.13%, respectively. However, the current method of harvesting garlic only uses the head part of garlic, and the other Most of the remaining garlic stems after harvesting are directly buried or incinerated on the spot. During the b...

Claims

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Application Information

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IPC IPC(8): C11B9/02
CPCC11B9/022C11B9/025
Inventor 张明永
Owner 徐州光明生物科技有限公司
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