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 t

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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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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