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Method for continuously extracting orange oil and limonin from citrus reticulata

A technology of limonin and orange oil, which is applied in the production of fatty oil/fat, steroids, bulk chemicals, etc., can solve the problems of high production cost, limited popularization and application, etc., and achieve low production cost and high yield , oily yellowish effect

Inactive Publication Date: 2012-07-18
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Supercritical extraction technology has the characteristics of green, environmental protection and high efficiency, but its high production cost limits its promotion and application

Method used

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  • Method for continuously extracting orange oil and limonin from citrus reticulata
  • Method for continuously extracting orange oil and limonin from citrus reticulata
  • Method for continuously extracting orange oil and limonin from citrus reticulata

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Apply the method provided by the invention to continuously extract tangerine oil and limonin from new citrus oranges, and the concrete steps are as follows:

[0037] The first step, the pretreatment of orange stone:

[0038] The core of Xinhui citrus was dried until the water content was about 3%, and it was pulverized to 40 mesh with a pulverizer.

[0039] The second step, the extraction of orange oil:

[0040] Get 300g of 40-mesh crushed material and pack it into the extraction tank. The flow rate of carbon dioxide is set as 60kg / h, the extraction pressure in the extraction tank is 28MPa, and the extraction temperature is 40°C to extract the orange oil.

[0041] The third step, the separation of orange oil:

[0042] The carbon dioxide carrying orange oil enters the separator for separation. The pressure of the primary separator is 12MPa, the temperature is 40°C MPa, the pressure of the secondary separator is 6MPa, and the temperature is 45°C.

[0043] Under the ex...

Embodiment 2

[0053] Apply the method provided by the invention to continuously extract tangerine oil and limonin from new citrus oranges, and the concrete steps are as follows:

[0054] The first step, the pretreatment of orange stone:

[0055] The Xinhui citrus core was dried until the water content was about 5 wt%, and it was pulverized to 50 mesh with a pulverizer.

[0056] The second step, the extraction of orange oil:

[0057] Get 400g of 50-mesh crushed material and put it into the extraction tank. The flow rate of carbon dioxide is set as 70kg / h, the extraction pressure in the extraction tank is 32MPa, and the extraction temperature is 45°C to extract the orange oil.

[0058] The third step, the separation of orange oil:

[0059] The carbon dioxide carrying orange oil enters the separator for separation. The pressure of the primary separator is 14MPa, the temperature is 50°C MPa, the pressure of the secondary separator is 7MPa, and the temperature is 50°C.

[0060] Operated unde...

Embodiment 3

[0070] Apply the method provided by the invention to continuously extract tangerine oil and limonin from new citrus oranges, and the concrete steps are as follows:

[0071] The first step, the pretreatment of orange stone:

[0072] The Xinhui citrus core was dried to a moisture content (mass percentage) of 9%, and it was pulverized to 60 mesh with a pulverizer.

[0073] The second step, the extraction of orange oil:

[0074] Get 500g of 60-mesh crushed material and put it into the extraction tank. The flow rate of carbon dioxide is set as 80kg / h, the extraction pressure in the extraction tank is 35MPa, and the extraction temperature is 50°C to extract the orange oil.

[0075] The third step, the separation of orange oil:

[0076] The carbon dioxide carrying orange oil enters the separator for separation. The pressure of the primary separator is 16MPa, the temperature is 50°C, the pressure of the secondary separator is 9MPa, and the temperature is 55°C.

[0077] Operated un...

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Abstract

The invention discloses a method for continuously extracting orange oil and limonin from citrus reticulate by using supercritical carbon dioxide, and belongs to the fields of grease extraction methods and natural product separation. A process flow comprises the following steps of: drying and crushing citrus reticulate tangerine seeds; performing supercritical extraction; separating mandarin oil from residues; performing supercritical extraction; separating; and crystallizing and purifying to obtain the limonin. The method has the advantages of high product yield and no solvent residue. By continuously extracting the orange oil and the limonin from the tangerine seeds, full utilization of the waste citrus reticulate tangerine seeds is realized, the high-quality orange oil and high-purity limonin are obtained, the production cost is reduced, and the added value and the economic benefit of a product are improved.

Description

technical field [0001] The invention belongs to the technical field of oil extraction method and natural product extraction, and relates to a method for continuously extracting orange oil and limonin from Xinhui citrus cores by using supercritical carbon dioxide extraction technology. Background technique [0002] Xinhui Citrus reticulata scientific name tea branch mandarin orange, is a special product of Xinhui District, Jiangmen City, Guangdong Province, and is a plant of Rutaceae (Rutaceae). New citrus has high medicinal value. Its skin is thin and soft, and its color is fresh and fragrant. The "Xinhui Chenpi" made from it is a famous Chinese medicinal material, which has the functions of reducing phlegm, relieving cough, clearing stagnation, expelling wind and removing dampness. Its pericarp is dried and made into tangerine peel for traditional Chinese medicine. At present, except for a small part of Xinhui citrus stones reserved for seedling cultivation and medicinal u...

Claims

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Application Information

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IPC IPC(8): C11B1/10C11B1/04C07J73/00
CPCY02P20/54
Inventor 荣龙刘灿刘静荣永海
Owner BEIHANG UNIV
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