Supercritical CO extraction of Angelica dehurical oil resin

An angelica oleoresin and supercritical technology, applied in liquid solution solvent extraction, producing fat, essential oil/fragrance, etc., can solve the loss of volatile components and water-soluble components, adverse effects on sensory quality of products, and influence on the flavor of extracts, etc. question

Inactive Publication Date: 2006-11-01
TIANJIN TANGCHAO FOOD IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the use of high temperature and organic solvents in these two methods, the loss of volatile components and water-soluble components is inevitable, and the residual organic solvent affects the flavor of the extract, which has a negative impact on the sensory quality of the product.

Method used

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  • Supercritical CO extraction of Angelica dehurical oil resin
  • Supercritical CO extraction of Angelica dehurical oil resin
  • Supercritical CO extraction of Angelica dehurical oil resin

Examples

Experimental program
Comparison scheme
Effect test

example 2

[0021] Example 2 Determination of extraction temperature:

[0022] See attached image 3 , The temperature rises, the molecular thermal movement speed increases, CO 2 The dissolving power increases; but at the same time the temperature rise also makes the supercritical CO 2 As the density decreases, its dissolving ability decreases correspondingly, resulting in a decrease in extraction efficiency. The extraction rate of oil mainly depends on which state prevails at this temperature. From image 3 It can be seen that when the temperature is lowered (35°C), the extraction oil yield is lower; as the temperature increases, the extraction oil yield increases, reaching the highest at 45°C; the temperature continues to rise, the extraction oil decreases instead. Therefore, the optimal extraction temperature is selected as: 45°C.

example 3

[0023] Example 3 Best CO 2 Determination of pump frequency:

[0024] See attached Figure 4 , CO 2 Pump frequency mainly controls CO 2 flow. CO 2 The increase of the pump frequency will speed up the flow rate of the supercritical fluid through the material, thereby increasing the density of the supercritical fluid, thereby increasing the solubility of the solute, shortening the time for the extraction to reach equilibrium, and improving the extraction rate of oil. by Figure 4 It can be seen that with CO 2 With the increase of pump frequency, the extraction rate of oil increased in different degrees, but when CO 2 When the pump frequency reaches 28 Hz, the extraction result has basically not changed. Description CO 2 The influence of pump frequency on the extraction result is basically close to equilibrium.

example 4

[0025] Example 4 Determination of extraction time:

[0026] See attached Figure 5 , CO 2 When the pump frequency is constant, with the extension of time, the extraction rate of oil is continuously increasing, but with the extension of time, the curve gradually becomes flat. by Figure 5 It can be seen that the change trend of the curve in the figure can explain that the extraction time in the early stage of extraction has a significant impact on the extraction results, and this effect is relatively reduced in the later stage. As an important parameter in industrial production, in actual production, considering the relationship between equipment energy consumption and extraction oil yield, the optimal extraction time is selected as 2 hours.

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Abstract

The invention belongs to the field of extraction technology; he radix angelicae dahuricae oil resin extracted out belongs to food conditioner. The purpose of the patent is to ameliorate the deficiency of the current technology, to decrease the remainder of the organic solvent, and to improve the flavor of the extractant. The supercritical fluid CO2 extraction method of the radix angelicae dahuricae oil resin is as following, the radix angelicae dahuricae power of a certain quantity is put into the extraction kettle, then the temperature is set, when the temperature reach the setting value by heating or refrigeration, the system will be compressed by CO2 with the high pressure pump, when the pressure of the extraction kettle and the isolation kettle reach the setting value, the flux of CO2 is adjusted to a certain value at the same time, keep the extraction for a while at a unvarying temperature, pressure and flux, and then put the radix angelicae dahuricae oil resin out. The technology of this patent is simple, the time of it is just as much as one sixth of that of the solvent method, the extraction ratio is 5.04%, is 1.78% higher than the extraction ratio of solvent method which is 3.26%. The radix angelicae dahuricae oil resin extracted with the method has not solvent remainder, the color and the aroma of it is pure.

Description

Technical field [0001] The invention belongs to the field of extraction technology, and the extracted Angelica dahurica oleoresin belongs to the field of food seasonings. Background technique [0002] Angelica dahurica is the dry root of a perennial herb in the Umbelliferae Angelica family. There are Hang Baizhi, Chuan Baizhi, Xing'an Baizhi and other types. The taste is pungent and slightly bitter, and the main ingredients are coumarin compounds, angelic acid, angelic ether, oxidized anthurin, and coralline. Used in traditional Chinese medicine, it has the effect of exciting the respiratory center, blood vessels, and sports center. In cooking and seasoning, because of its aromatic smell, it has the function of removing fishy and mutton. It is mostly used in meat processing and is a common spice in traditional stewed products. Angelica dahurica oleoresin is the main flavor component. [0003] Oleoresin refers to the effective ingredients extracted from natu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/00B01D11/04
Inventor 吕桂福徐伟胡胜梅
Owner TIANJIN TANGCHAO FOOD IND CO LTD
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