Method for extracting coix seed rice bran oil by utilizing supercritical CO2 technology

A technology for extracting barley and rice bran, which is applied in the production of fat oil/fat and fat production, etc., and can solve the problems of difficulty in ensuring the quality of rice bran oil, complicated extraction process, and low extraction efficiency

Inactive Publication Date: 2012-08-01
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods have the disadvantages of complex extraction process, difficulty in ensuring the quality of rice bran oil, and low extraction efficiency. Although relevant researchers have made great efforts, the technical problems existing in them have been difficult to solve for a long time

Method used

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  • Method for extracting coix seed rice bran oil by utilizing supercritical CO2 technology
  • Method for extracting coix seed rice bran oil by utilizing supercritical CO2 technology
  • Method for extracting coix seed rice bran oil by utilizing supercritical CO2 technology

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Experimental program
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Effect test

Embodiment 1

[0027] Step 1, pre-treatment of barley and rice bran: the sample bran is crushed through a 80-mesh sieve with a pulverizer, and 50 g of the sample is weighed in a glass vessel, dried in a vacuum drying oven (60°C), taken out and weighed every 30 minutes, and dried to constant weight.

[0028] Step two, supercritical CO 2 Extractor Operation: Open CO 2 After the main power supply of the pump case, turn on the CO 2 Cylinder valve, and then observe the psi display value in the deflated state (psi>800, CO 2 adequate). Open the purge valve, purge for 10-15s, and then close the CO 2 Cylinder valve, when the pressure shows 0, close the release valve. Turn on the power switch, turn on the temperature control switch of the main box, and set the temperature of the extraction kettle to 50°C and the temperature of the separation kettle to 55°C. Turn on the pre-cooling switch of the pump head under the display screen, and pre-cool for 10-15 minutes. After cooling, after the heating t...

Embodiment 2

[0033] Step 1, rice bran pre-treatment: the sample bran is crushed through a 80-mesh sieve with a pulverizer, and 50 g of the sample is weighed in a glass vessel, dried in a vacuum drying oven (60° C.), taken out and weighed every 30 minutes, and dried to a constant weight.

[0034] Step two, supercritical CO 2 Extractor Operation: Open CO 2 After the main power supply of the pump case, turn on the CO 2 Cylinder valve, and then observe the psi display value in the deflated state (psi>800, CO 2 adequate). Open the purge valve, purge for 10-15s, and then close the CO 2 Cylinder valve, when the pressure shows 0, close the release valve. Turn on the power switch, turn on the temperature control switch on the left side of the main box, and set the temperature of the extraction kettle to 50°C and the temperature of the separation kettle to 55°C. Turn on the pre-cooling switch of the pump head under the display screen, and pre-cool for 10-15 minutes. After cooling, after the he...

Embodiment 3

[0038] Step 1, rice bran pre-treatment: the sample bran is crushed through a 80-mesh sieve with a pulverizer, and 50 g of the sample is weighed in a glass vessel, dried in a vacuum drying oven (60° C.), taken out and weighed every 30 minutes, and dried to a constant weight.

[0039] Step two, supercritical CO 2 Extractor Operation: Open CO 2 After the main power supply of the pump case, turn on the CO 2 Cylinder valve, and then observe the psi display value in the deflated state (psi>800, CO 2 adequate). Open the purge valve, purge for 10-15s, and then close the CO 2 Cylinder valve, when the pressure shows 0, close the release valve. Turn on the power switch, turn on the temperature control switch on the left side of the main box, and set the temperature of the extraction kettle to 40°C and the temperature of the separation kettle to 45°C. Turn on the pre-cooling switch of the pump head under the display screen, and pre-cool for 10-15 minutes. After cooling, after the he...

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Abstract

The invention discloses a method for extracting coix seed rice bran oil by utilizing a supercritical CO2 technology. According to the method, the coix seed rice bran oil is extracted by utilizing the supercritical CO2 technology. The method comprises the following steps of: pretreating coix seed rice bran, putting the pretreated coix seed rice bran into a supercritical fluid extractor, extracting at the extraction temperature of between 40 and 50 DEG C under extraction pressure of between 30 and 45 MPa under the condition that the flow of CO2 is 9 to 11 milliliters / minute, and separating at the separation temperature of between 45 and 55 DEG C to obtain the coix seed rice bran oil. The coix seed rice bran oil is high in purity, and the oil extraction rate is more than 17 percent. The method is easy to operate, and environment-friendly; and reaction conditions are mild.

Description

technical field [0001] The invention relates to a preparation method of edible oil, in particular to an extraction method of barley and rice bran oil. Background technique [0002] Barley contains extremely high nutritional value, including 14% protein, 5% fat, 65% carbohydrate, 3% crude fiber, 0.07% calcium, 0.242% phosphorus, and 0.001% iron. The content of these ingredients far exceeds that of rice. Moreover, it also contains 8 kinds of essential amino acids and minerals including leucine, arginine, lysine, and tyrosine, and the ratio is very suitable for the needs of the human body, and it is easier to be absorbed and utilized by the body than rice. Barley is widely praised as a high-nutrition food and medicinal food. [0003] As a by-product of barley processing, barley bran has not been effectively utilized. Referring to the nutritional value of rice bran, it is reasonable to infer that barley bran has a high nutritional value. The oil-soluble components in barley an...

Claims

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Application Information

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IPC IPC(8): C11B1/10
Inventor 王正武蔡莹吴金鸿汪岳刚
Owner SHANGHAI JIAO TONG UNIV
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