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Supercritical extraction process of cynomorium songaricum seed oil

A Cynomorium seed oil, supercritical technology, applied in the field of biochemistry, can solve the problems of difficult extraction, easily polluted microorganisms, solvent residues, etc., and achieve the effects of short extraction cycle, improved extraction rate, and no solvent residues

Inactive Publication Date: 2016-08-17
CHINA ACAD OF SCI NORTHWEST HIGHLAND BIOLOGY INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, the mechanical pressing method has the disadvantages of low oil yield, high labor intensity, and low production efficiency. In addition, due to the steaming and frying process of raw bodies in the oil pressing process, protein denaturation is serious, and the comprehensive utilization rate of oil resources is low.
The crude oil extracted by the leaching method contains more non-oil substances, darker in color, and poor in quality, and the solvent used for leaching is flammable, explosive, and has certain toxicity. The production safety is poor and it will cause solvent residues in the oil.
The main disadvantage of water extraction method is that the oil yield is lower than that of the traditional leaching method, it is easy to contaminate microorganisms during the leaching process, and a large amount of wastewater will be discharged to be treated
[0004] Cynomorium seeds are relatively small, with low oil content, and are difficult to extract by traditional methods. At present, there is no case where traditional extraction methods are applied to the extraction of Cynomorium seed oil
At the same time, Cynomorium seed oil contains a large amount of antioxidant oxygen-containing fatty acids, and high-temperature frying by other processes will inevitably destroy its structure and make it lose its antioxidant activity

Method used

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  • Supercritical extraction process of cynomorium songaricum seed oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Supercritical CO of cynomorium seed oil 2 The main steps of extraction are as follows:

[0025] The first step is to remove impurities from the Cynomorium seeds to be extracted, and then dry the Cynomorium seeds at 30°C.

[0026] The second step is to crush Cynomorium cynomorium seeds, and sieve through a sieve with an aperture of 0.25 μm to 0.425 μm;

[0027] In the third step, supercritical CO 2 Extraction, the extraction pressure is 20MPa~30MPa, the extraction temperature is 35℃~45℃, CO 2 The fluid flow rate is 12ml / min to 20ml / min, and the extraction time is 1.5h to 2.5h to obtain the Cynomorium seed oil extract;

[0028] The fourth step is to centrifuge the extract of Cynomorium seed oil in a high-speed centrifuge with a rotation speed of 10000r / min~12000r / min at a room temperature of 20°C to 30°C for 10min to 30min to remove impurities and obtain Cynomorium seed oil .

[0029] Among them, in the first step, impurities are removed from the cynomorium seeds to ...

Embodiment 2

[0034] Supercritical CO of cynomorium seed oil 2 The main steps of extraction are as follows:

[0035] The first step is to remove impurities from the cynomorium seeds to be extracted, and then dry the cynomorium seeds at 30°C for 24 hours.

[0036] In the second step, crush Cynomorium seeds and filter them through a sieve with a pore size of 0.425 μm.

[0037] In the third step, supercritical CO 2 Extraction, fluid extraction pressure is 29MPa, extraction temperature is 37°C, CO 2 The fluid flow rate is 20ml / min, the extraction time is 2.5h, and the Cynomorium cynomorium seed oil extract is obtained.

[0038] The fourth step is to centrifuge the extract of Cynomorium seed oil in a high-speed centrifuge with a rotation speed of 12000r / min at a room temperature of 25°C for 10 minutes to remove impurities and obtain Cynomorium cynomorium seed oil.

[0039] Cynomorium seed oil extraction rate reached 4.76%.

Embodiment 3

[0041] Supercritical CO of cynomorium seed oil 2 The main steps of extraction are as follows:

[0042] The first step is to remove impurities from the cynomorium seeds to be extracted, and then dry the cynomorium seeds at 35°C for 30 hours.

[0043] In the second step, crush Cynomorium cynomorium seeds, and filter through a sieve with a pore size of 0.325 μm.

[0044] In the third step, supercritical CO 2Extraction, fluid extraction pressure is 29MPa, extraction temperature is 37°C, CO 2 The fluid flow rate is 20ml / min, the extraction time is 2.5h, and the Cynomorium cynomorium seed oil extract is obtained.

[0045] The fourth step is to centrifuge the Cynomorium seed oil extract in a high-speed centrifuge with a rotation speed of 10,000 r / min at a room temperature of 25°C for 30 minutes to remove impurities and obtain Cynomorium cynomorium seed oil.

[0046] Cynomorium seed oil extraction rate reached 4.71%.

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Abstract

The invention relates to a supercritical extraction process of cynomorium songaricum seed oil. The process comprises the following steps of: crushing, namely smashing cynomorium songaricum seeds; sieving; extracting, namely extracting the sieved cynomorium songaricum seeds by use of supercritical CO2 fluid so as to obtain cynomorium songaricum seed oil extract; performing centrifugal separation, namely performing centrifugal separation on the cynomorium songaricum seed oil extract so as to obtain cynomorium songaricum seed oil. The supercritical extraction process of cynomorium songaricum seed oil has the characteristics of low cost, high extraction rate, no solvent residual, short period, no environment pollution and the like, and can provide technical support for small batch of special fat production.

Description

technical field [0001] The invention relates to the field of biochemistry, in particular to a supercritical extraction process of cynomorium seed oil. Background technique [0002] Vegetable oil is one of the important sources for human beings to obtain essential fatty acids, and it is also an important chemical raw material. With the in-depth research on vegetable oil resources, many physiological functions and effects of vegetable oils have been gradually discovered. At the same time, people pay more and more attention to the research of oil extraction methods for different purposes, in order to obtain the most economical and applicable vegetable oil extraction scheme. [0003] The existing vegetable oil acquisition methods mainly include mechanical pressing, leaching and water substitution. Among them, the mechanical pressing method has the disadvantages of low oil yield, high labor intensity, and low production efficiency. In addition, due to the steaming and frying pr...

Claims

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Application Information

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IPC IPC(8): B01D11/02C11B1/10A23D9/04
CPCB01D11/0203A23D9/04C11B1/104
Inventor 周玉碧田永祯张玉孙菁杨仕兵程业森叶润蓉杜玉枝卢学峰高立平孙胜男武志博彭敏王旭甘霖邓娟袁园园王劼黄晓辉夏瑞瑞赵建中星玉秀
Owner CHINA ACAD OF SCI NORTHWEST HIGHLAND BIOLOGY INST
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