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Method for extracting sun choke essential oil and sun choke brain by enzymolysis-vapor distillation process

A technology of water vapor distillation and sand ginger essential oil, which is applied in the direction of essential oil/spices, fermentation, fat production, etc. It can solve the problems of difficult steaming, exporting pipeline flushing, difficult to obtain high-quality essential oil, etc., and achieves easy filtration and improved process Effect

Inactive Publication Date: 2004-11-03
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because sand ginger contains a lot of starch, it gelatinizes when boiling, and it is easy to block the steam channel, causing the outlet pipeline to flush
Therefore, it is difficult to evaporate most of the active ingredients
And in the further purification process, simple oil-water separation is not easy to obtain clear and transparent high-quality essential oils

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The first step is to select, purify and crush the fresh sand ginger, and the particle size after crushing is 0.1mm;

[0018] In the second step, when the temperature is 50° C. and the solid-liquid ratio is 1:1, amylase is used to enzymatically hydrolyze the slurry, the concentration of the enzyme is 0.2% of the total weight, and the time is 30 minutes;

[0019] In the third step, steam distillation is carried out for 3 hours when the solid-liquid ratio is 1:3, and the steam volume is converted into a liquid volume of about 200g / h (based on 100 grams of ginger);

[0020] The 4th step, obtain essential oil and gingerol with oil-water separation method and filtration method; Select ether as organic solvent, extract the aqueous solution of distillate; Select Na 2 SO 4 Used as a desiccant to remove a small amount of water contained in the essential oil to obtain a clear and transparent essential oil.

Embodiment 2

[0022] The first step is to select, purify and crush the dried sand ginger, and the particle size after crushing is 3mm;

[0023] In the second step, when the temperature is 100°C and the solid-to-liquid ratio is 1:3, the slurry is enzymolyzed with glucoamylase, the concentration of the enzyme is 2.0% of the total weight, and the time is 150 minutes;

[0024] The third step is to carry out water vapor distillation for 7 hours when the solid-liquid ratio is 1:7, and the steam volume is converted into a liquid volume of about 700g / h (based on 100 grams of ginger);

[0025] The fourth step is to use oil-water separation method and filtration method to obtain essential oil and gingerol; choose hexane as organic solvent, and extract the aqueous solution of distillate; choose CaSO 4 Used as a desiccant to remove a small amount of water contained in essential oils to obtain clear and transparent essential oils.

[0026] Examples 1 and 2 gained active ingredient yields are shown in T...

Embodiment 3

[0030] The first step is to select, purify and crush fresh sand ginger, and the particle size after crushing is 0.7mm;

[0031] In the second step, when the temperature is 80° C. and the solid-liquid ratio is 1:2, amylase is used to enzymolyze the slurry, the concentration of the enzyme is 0.5% of the total weight, and the time is 50 minutes;

[0032] The third step is to carry out steam distillation for 5 hours when the solid-liquid ratio is 1:5, and the steam volume is converted into a liquid volume of about 500g / h (calculated in 100 grams of ginger);

[0033] The fourth step is to use oil-water separation method and filtration method to obtain essential oil and gingerol; choose ethyl acetate as the organic solvent, and extract the aqueous solution of the distillate; choose CaCl 2 Used as a desiccant to remove a small amount of water contained in essential oils to obtain clear and transparent essential oils. The yield of essential oil and gingerol is 3.20%.

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PUM

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Abstract

The enzymolysis-water vapor distillation process of extracting kaempferia galanga oil and shogaol includes the following steps: sorting, cleaning and crushing kaempferia galanga into grains of 0.1-3 mm size; enzymolyzing slurry at 50-100 deg.c and solid / liquid ratio of 1 / 3 to 1 with amylase for in concentration of 0.2-2.0 % 30-150 min; water vapor distillation in solid / liquid ratio of 1 / 7-1 / 3 for 3-7 hr, with water vapor amount being 200-700 g / hr each 100 g sandgingar; and oil-water separating or filtering to obtain kaempferia galanga oil and shogaol. The present invention can obtain clear and transparent kaempferia galanga oil.

Description

technical field [0001] The invention relates to extraction and separation technology of effective components of natural products, more specifically to a method for extracting gingerol essential oil and gingerol. Background technique [0002] Sand ginger is rich in aromatic ingredients, and the essential oil content is distributed between 0.8% and 4.9% depending on the place of origin or variety or the difference between dry and fresh. Sand ginger essential oil is a light yellow oily liquid extracted from the rhizome of sand ginger. Gingerol is a white crystal that is precipitated at normal temperature by the purer component. After recrystallization, it is in the form of a colorless transparent strip, which can be obtained in the later stage of steam distillation. The chemical constituents of ginger oil and gingerol are mainly P-methoxy-ethyl-Cinamate, Ethyl-Cinamate, p-methoxystyrene (P-methoxy -styrene), anisaldehyde (Anisaldehyde), carene (Care...

Claims

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Application Information

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IPC IPC(8): A23L27/10C11B9/00C12P1/00
Inventor 樊亚鸣陈永亨
Owner GUANGZHOU UNIVERSITY
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