Method for extracting pumpkin seed oil with supercritical CO2

A kind of pumpkin seed oil, supercritical technology, applied in the direction of fat oil/fat production, fat oil/fat refining, fat production, etc., can solve the problem of extracting pumpkin seed oil that has not been seen yet, achieve high yield, mature process, high purity Effect

Inactive Publication Date: 2014-12-10
PUYANG TIANXINGJIAN BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the process is still in the stage of experimental exploration, there is still a long distance from the actual popularization and utilization.
[0005] In recent years, supercritical CO 2 Extraction technology has been widely promoted because of its advantages of high extraction efficiency, no organic pollution, and high safety. However, in the prior art, supercritical CO 2 A more detailed report on the extraction of pumpkin seed oil

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  • Method for extracting pumpkin seed oil with supercritical CO2
  • Method for extracting pumpkin seed oil with supercritical CO2

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Experimental program
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Effect test

Embodiment 1

[0028] Such as figure 1 , figure 2 Shown, the supercritical CO of pumpkin seed oil provided by the present invention 2 The extraction method includes preheating, extraction, first separation, second separation, and molecular distillation process, specifically including the following steps:

[0029] (1) Select clean pumpkin seeds without shriveled and pumpkin shells, and crush them with 40-60 mesh;

[0030] (2) Put the crushed pumpkin seeds in step (1) in the extraction kettle for supercritical CO 2 Extraction, the specific extraction process is:

[0031] First, turn on the power first, preheat the extraction kettle to 40~45°C, then place the material in step (1) in the extraction kettle, and adjust the high-pressure CO into the extraction kettle. 2 Fluid pressure to 26~30MPa, stable for 2 hours;

[0032] Second, high pressure CO 2 The fluid carries the dissolved substances in the extraction tank through the first preheater and enters the first separation tank. The tempe...

Embodiment 2

[0047] The procedure for producing yellow pumpkin seed oil in this embodiment is the same as that in Example 1, except that the clean pumpkin seed oil raw material is adjusted to 0.85 kg, and crushed to 40 meshes.

[0048] During the extraction process, the temperature in the extraction kettle was preheated to 45°C, and the high-pressure CO in the extraction kettle 2 The fluid pressure is 28MPa, stable for 2 hours; the high-pressure CO with the extract in the first separation tank 2 The fluid pressure is 9MPa, the temperature of the first preheater is 40°C; the high-pressure CO with the extract in the second separation tank 2 The fluid pressure is 6MPa, and the temperature of the second preheater is 40°C.

[0049] Supercritical CO 2 After extraction, the finished product of pumpkin seed oil is obtained after further 5-stage molecular distillation.

[0050] This embodiment finally obtains 0.36Kg of pumpkin seed oil finished product, and the extraction rate is 45%. The extrac...

Embodiment 3

[0052] The procedure for producing yellow pumpkin seed oil in this embodiment is the same as that in Example 1, except that the clean pumpkin seed oil raw material is adjusted to 0.85 kg and crushed at 60 mesh.

[0053] During the extraction process, the temperature in the extraction kettle was preheated to 45°C, and the high-pressure CO in the extraction kettle 2 The fluid pressure is 30MPa, stable for 2 hours; the high-pressure CO with the extract in the first separation tank 2 The fluid pressure is 9MPa, the temperature of the first preheater is 45°C; the high-pressure CO 2 The fluid pressure is 6MPa, and the temperature of the second preheater is 40°C.

[0054] Supercritical CO 2 After extraction, the finished product of pumpkin seed oil is obtained after further 5-stage molecular distillation.

[0055] This embodiment finally obtains 0.36Kg of pumpkin seed oil finished product, and the extraction rate is 45%. The extracted pumpkin seed oil is rose red in color and has ...

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Abstract

The invention belongs to the technical field of edible oil preparation and in particular relates to a method for extracting pumpkin seed oil with supercritical CO2. The method comprises the processes of preheating, extraction, primary separation, secondary separation and molecular distillation. The prepared pumpkin seed oil has rosy color and has the special smell of pumpkin seeds. The total unsaturated fatty acids in the pumpkin seed oil are not less than 85%, and the content of linoleic acid in the pumpkin seed oil is not less than 31%. The method provided by the invention has the beneficial effects that in the extraction process, the technology is mature and is easy to operate; the pollutant discharge process does not exist in the whole production process, so that the method is environment-friendly; meanwhile, the method has the advantages of high yield, high purity, good quality of prepared pumpkin seed oil and the like; through further physiochemical index detection of the prepared pumpkin seed oil, the unsaturated fatty acid ingredients in the pumpkin seed oil are better retained, so that the pumpkin seed oil has better economic values.

Description

Technical field [0001] The present invention belongs to the field of edible oil preparation technology, which involves a supercritical CO of pumpkin seed oil 2 Extract method. Background technique [0002] Existing studies have shown that pumpkin seed oil is rich in unsaturated fatty acids such as linolenic acid, linoleic acid, etc., as well as rich biological active substances such as plant alcohol, amino acids, vitamins, minerals, etc.The admiration is considered a good health oil. [0003] Regarding the production of pumpkin seed oil, it is generally used mainly squeezing and solvent immersion.Generally speaking, the squeezing method retains the richer nutrients in the oil and has no chemical solvents pollution. Therefore, it is considered to be the most secure method of preparation.Limited restrictions.The solvent immersion method generally uses solvent oil (light gasoline No. 6) to extract the oil raw materials after being fully soaked, and then processes it through the "six...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/10C11B1/04C11B3/12
Inventor 李少杰端木国民马现京
Owner PUYANG TIANXINGJIAN BIOTECH
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