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Kaempferiae extract and preparation method and application thereof

An extract, the technology of sand ginger, which is applied in the field of sand ginger extract and its preparation, can solve the problems of environmental protection organic solvent cost and so on

Inactive Publication Date: 2013-04-03
广东长兴生物科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition to natural sources, ethyl p-methoxycinnamate can also be obtained by chemical synthesis methods, the most commonly used are Perkin n two-step process and pyridine catalyzed Knoevenagel reaction, but because of its disadvantages such as environmental protection, organic solvents, and cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Prepare the ginger extract of the present invention.

[0053] (1) Supercritical CO2 extraction of sand ginger essential oil:

[0054] 1) Take an appropriate amount of sand ginger, wash away the sand, remove the roots and impurities, chop it up, squeeze the juice with a juicer and grind it,

[0055] 2) Take the squeezed and pulverized Ginger juice residue obtained in 1) and place it in a CO2 supercritical extraction kettle, start the equipment, set the parameters, and start the extraction. Extraction conditions: storage tank pressure 5.5MPa, extraction kettle pressure 25MPa, desorption kettle pressure 6MPa, extraction kettle temperature 50°C, CO2 flow rate 30kg / h, desorption kettle temperature 30°C, cooling water temperature 5°C, extraction time 90m i n, extraction After the end, the resulting brown-yellow oily ginger supercritical extract. The yield is 10%.

[0056] (2), molecular distillation purification

[0057] 2.1 Add the supercritical extract of ginger to the ...

Embodiment 2

[0068] Prepare the ginger extract of the present invention.

[0069] (1) Supercritical CO2 extraction of sand ginger essential oil:

[0070] 1) Take an appropriate amount of sand ginger, wash away the sand, remove the roots and impurities, chop it up, squeeze the juice with a juicer and grind it,

[0071] 2) Take the squeezed and pulverized Ginger juice residue obtained in 1) and place it in a CO2 supercritical extraction kettle, start the equipment, set the parameters, and start the extraction. Extraction conditions: storage tank pressure 5MPa, extraction kettle pressure 23MPa, desorption kettle pressure 7MPa, extraction kettle temperature 51°C, CO2 flow rate 20kg / h, desorption kettle temperature 40°C, cooling water temperature 6°C, extraction time 100m i n, extraction finished Finally, the resulting brown-yellow oily supercritical extract of ginger. The yield was 11%.

[0072] (2), molecular distillation purification

[0073] 2.1 Add the supercritical extract of ginger t...

Embodiment 3

[0084] Prepare the ginger extract of the present invention.

[0085] (1) Supercritical CO2 extraction of sand ginger essential oil:

[0086] 1) Take an appropriate amount of sand ginger, wash away the sand, remove the roots and impurities, chop it up, squeeze the juice with a juicer and grind it,

[0087] 2) Take the squeezed and pulverized Ginger juice residue obtained in 1) and place it in a CO2 supercritical extraction kettle, start the equipment, set the parameters, and start the extraction. Extraction conditions: storage tank pressure 4M Pa, extraction tank pressure 19M Pa, desorption tank pressure 8M Pa, extraction tank temperature 39°C, desorption tank temperature 35°C, CO2 flow rate 28kg / h, cooling water temperature 8°C, extraction time 120min, After the extraction is finished, the resulting brown-yellow oily supercritical extract of ginger. The yield was 9%.

[0088] (2), molecular distillation purification

[0089] 2.1 Add the supercritical extract of Ginger root...

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PUM

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Abstract

The invention discloses a method for preparing a kaempferiae extract. The method comprises the following steps of: taking a proper amount of kaempferiae; cleaning sand away, removing root hairs and impurities, chopping the kaempferiae, juicing and smashing by using a juicing machine, performing supercritical CO2 extraction on the prepared juiced and smashed kaempferiae juice, and adding a kaempferiae supercritical extract into molecular distillation equipment for twice distillation, so as to finally obtain a light-yellow oily kaempferiae extract. According to the method, a supercritical CO2 extraction method and a molecular distillation method are combined, so that the aims of short extraction time and high extraction efficiency are fulfilled.

Description

technical field [0001] The invention relates to a preparation method of an extract, in particular to a sand ginger extract and its preparation method and application. Background technique [0002] Shajiang, also known as Kaempferia galanga L., is the dried rhizome of Kaempferia galanga L., a plant in the ginger family. It has the effects of promoting the temperature, eliminating food and relieving pain. It is one of the traditional medicinal materials in Lingnan. It is a well-known traditional Chinese medicine, and it is also a common non-staple food condiment. [0003] The main chemical components in sand ginger are: volatile oil, flavonoids, diphenylheptanes, trace elements, etc. The volatile oil content of sand ginger is relatively high, and as a spicy and warm medicinal material, its spicy smell is one of the indicators for judging the quality of sand ginger. Ethyl p-methoxycinnamate in the oil is a symbolic compound and an index component of quality control of the med...

Claims

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Application Information

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IPC IPC(8): A23L1/29A23G3/48A23L2/38A23L33/00
Inventor 梁楠梁滨李建权杨志军赖阳辉卢君杨立楷陈晓玲陈虹邱美玲
Owner 广东长兴生物科技股份有限公司
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