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Method for extracting and separating curcuma oil

A separation method and technology of turmeric oil, which is applied in the fields of pharmaceutical formulations, fat oil/fat production, medical preparations containing active ingredients, etc., can solve problems that do not involve the separation of turmeric oil, etc., and achieve solvent residues, strong fragrance, and environmental friendliness Effect

Inactive Publication Date: 2009-04-15
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] Turmeric oil is usually extracted by steam distillation (Zhang Liankui, etc., CN87101355A) or solvent method, and generally obtained as a by-product in the process of extracting curcumin, Liu Shuxing, etc. (China Oil, 2004, 29 (4): 18-20) and Ge Fahuan et al. (Chinese Medicinal Materials, 1997, 20 (7): 345-350) utilized the supercritical method to extract turmeric oil, but did not involve the separation of oxygen-containing sesquiterpene and sesquiterpene in turmeric oil

Method used

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  • Method for extracting and separating curcuma oil

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Effect test

Embodiment 1

[0019] Weigh 100g of turmeric powder, put it into the barrel, put it into the extraction kettle, raise the temperature and pressurize, and preset it statically at a pressure of 10Mpa and a temperature of 30°C for 15min, then extract the statically processed turmeric powder at an extraction pressure of 30Mpa and an extraction temperature of 45°C. CO 2 The flow rate is 40L / h, and the extraction time is 120min for dynamic circulation extraction. The yield of turmeric oil is 8.9%. Add 40mL of turmeric oil into the molecular still, carry out molecular distillation under the conditions of operating pressure 10Pa, distillation temperature 80°C, condensation temperature 2°C, feed rate 3mL / min, feed temperature 45°C, wiper speed 300r / min, The amount of distillate was 81.1%. The distillate from the primary molecular distillation is subjected to secondary molecular distillation. When the distillation pressure is 260Pa, the distillation temperature is 50°C and the rotation speed of the ...

Embodiment 2

[0021] Weigh 50g of turmeric powder, put it into the barrel, put it into the extraction kettle, heat up and pressurize, and preset it statically for 15 minutes at a pressure of 10Mpa and a temperature of 30°C, and then extract the statically processed turmeric powder at an extraction pressure of 30Mpa and an extraction temperature of 45°C. CO 2 The flow rate is 40L / h, and the extraction time is 120min for dynamic circulation extraction. The yield of turmeric oil is 8.8%. Supercritical CO 2 The extracted turmeric oil is added to a molecular distillation kettle, and the molecular distillation is carried out under the conditions of an operating pressure of 15 Pa, a distillation temperature of 85°C, a condensation temperature of 2°C, a feed rate of 3mL / min, a feed temperature of 45°C, and a wiper speed of 300r / min , Molecular distillation distillate is 78.0%. The distillate from the primary molecular distillation is subjected to secondary molecular distillation. When the distil...

Embodiment 3

[0023] Weigh 150g of turmeric powder, put it into the barrel, put it into the extraction kettle, heat up and pressurize, and preset it statically for 15 minutes at a pressure of 10Mpa and a temperature of 30°C, and then extract the statically processed turmeric powder at an extraction pressure of 30Mpa and an extraction temperature of 45°C. CO 2 The flow rate is 40L / h, and the extraction time is 120min for dynamic circulation extraction. The yield of turmeric oil is 8.9%. Supercritical CO 2 The extracted turmeric oil is added to the molecular distillation kettle, and the molecular distillation is carried out under the conditions of operating pressure 20Pa, distillation temperature 85°C, condensation temperature 2°C, feed rate 3mL / min, feed temperature 45°C, and wiper speed 300r / min , Molecular distillation distillate is 75.0%. The distillate from the primary molecular distillation is subjected to secondary molecular distillation. When the distillation pressure is 160Pa, the...

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Abstract

The invention relates to a method for extracting and separating turmeric oil, which comprises the step of extracting the turmeric oil from curcumas by using supercritical CO2, and is characterized in that the method also comprises the following steps: adopting first-step molecular distillation to separate curcumin and grease in the turmeric oil obtained by using the supercritical CO2 method; obtaining almost colorless turmeric essential oil under the conditions of operating pressure of 10 to 20Pa, distillation temperature of 70 to 90 DEG C, the rotation speed of a blade applicator of 200 to 300r / min and distillates of more than 75.0 percent. Adopting supercritical CO2 extraction and two-level molecular distillation, the method can effectively keep the natural ingredients of the turmeric oil, without bringing any pollution to the environment. In addition, the method also realizes the separation of oxygenous sesquiterpene from sesquiterpene in the turmeric oil, which can be used directly as raw materials in the fields such as the cosmetics, food and pharmacy where different amounts of the oxygenous sesquiterpene and the sesquiterpene are needed.

Description

technical field [0001] The invention relates to the extraction and separation of turmeric oil, in particular to a new method for separating oxygen-containing sesquiterpene and sesquiterpene in turmeric oil by two-stage molecular distillation. Background technique [0002] Turmeric is a traditional medicinal material that can be used for both medicine and food. It has the functions of breaking blood stasis, promoting qi, eliminating accumulation and relieving pain, as well as physiological activities such as anti-cancer, anti-early pregnancy, anti-coagulation, anti-oxidation and liver protection. The main chemical constituents of turmeric are curcuminoids and turmeric oil. Turmeric oil mainly contains monoterpenoids, sesquiterpenoids and their derivatives, such as curcumone, dehydroturmerone, phellandrene, limonene, camphor, curcumone, curcumol, curdione, curcumenol, Curcumene, gingerene and olein and other substances. Modern pharmacological studies have shown that turmeric...

Claims

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Application Information

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IPC IPC(8): C11B1/10A61K8/97A61K36/9066A61P7/04A61P11/10A61P29/00A61P35/00
Inventor 李湘洲旷春桃杨国恩张炎强
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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