CN107164073A - The method of extracting pecan oil by using supercritical carbon dioxide fluid - Google Patents
The method of extracting pecan oil by using supercritical carbon dioxide fluid Download PDFInfo
- Publication number
- CN107164073A CN107164073A CN201610555591.8A CN201610555591A CN107164073A CN 107164073 A CN107164073 A CN 107164073A CN 201610555591 A CN201610555591 A CN 201610555591A CN 107164073 A CN107164073 A CN 107164073A
- Authority
- CN
- China
- Prior art keywords
- carbon dioxide
- oil
- hickory kernel
- kernel
- hickory
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/02—Pretreatment
- C11B1/04—Pretreatment of vegetable raw material
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/10—Production of fats or fatty oils from raw materials by extracting
- C11B1/104—Production of fats or fatty oils from raw materials by extracting using super critical gases or vapours
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Fats And Perfumes (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
The invention discloses a kind of method of extracting pecan oil by using supercritical carbon dioxide fluid, comprise the following steps：Hickory nut after separation of hull from kernel, selects hickory kernel through rejuvenator broken shell；Hickory kernel is put into water and impregnated 24 hours；Hickory kernel is subjected to broken wall crushing, during crushing, it is 0~10 DEG C of water that every 1 kilogram of hickory kernel, which adds 50 milliliters of temperature,；Hickory kernel after above-mentioned crushing is dried；By in above-mentioned dried hickory kernel input extraction kettle, enter extraction kettle after spe medium carbon dioxide is measured through flowmeter, it is 50 DEG C to control supercritical extract temperature, supercritical extract pressure is 20~29Mpa, carbon dioxide flow is 200~600 ls/h, extraction time 1 hour, the mixture I of generation degreasing hickory kernel, liquid carbon dioxide and pecan oil；Mixture I in above-mentioned extraction kettle is entered in oil-liquid separator, 6~12Mpa of control separating pressure, 40~60 DEG C of separation temperature, pecan oil are released from the bottom of oil-liquid separator.
Description
Technical field
The present invention relates to technical field of oil extraction, a kind of extracting pecan oil by using supercritical carbon dioxide fluid is referred specifically to
Method.
Background technology
At present, it is national increasing to having the demand of the special oil of health-care efficacy,《Chinese food structural reform and hair
Open up planning outline》In, pecan oil is listed in the edible oil for advocating popularization energetically, and what is generally used now has milling process to produce work
Skill and organic solvent lixiviation process production technology, the crude oil impurity of milling process production technology production are more, need to be through high temperature and chemistry side
Method processing (such as alkali refining, washing, dehydration, decolouring), high-temperature time is long, product formation mode acid lipid, is unfavorable for human body and is good for
Health；Easily hydrolysis makes unrighted acid have the generation of polymer to steam distillation grease, easily causes vitamin E in oil, carrot
The loss and destruction of the nutritional benefit materials such as element, phytosterol and trace element, make protein denaturation, its water soluble protein contains
Amount is decreased obviously, and reduces the nutritive value and functional characteristic of walnut oil in itself；The production of organic solvent lixiviation process production technology
Crude oil has organic solvent residual, unfavorable to health.
The content of the invention
The present invention proposes a kind of method of extracting pecan oil by using supercritical carbon dioxide fluid, can preferably retain hickory nut
In oil while bioactive ingredients, the extraction efficiency and oil yield of pecan oil are greatly improved.
In order to solve the above-mentioned technical problem, the technical scheme is that：
A kind of method of extracting pecan oil by using supercritical carbon dioxide fluid, it is characterised in that comprise the following steps：
A, hickory nut after separation of hull from kernel, select hickory kernel through rejuvenator broken shell；
B, by hickory kernel be put into water impregnate 2-4 hours；
C, hickory kernel is subjected to broken wall crushing, during crushing, it is 0~10 that every 1 kilogram of hickory kernel, which adds 50 milliliters of temperature,
DEG C water；
D, the hickory kernel after above-mentioned crushing is dried；
E, above-mentioned dried hickory kernel put into extraction kettle, after spe medium carbon dioxide is measured through flowmeter
Into extraction kettle, it is 50 DEG C to control supercritical extract temperature, and supercritical extract pressure is 20~29Mpa, and carbon dioxide flow is
200~600 ls/h, extraction time 1 hour, the mixture of generation degreasing hickory kernel, liquid carbon dioxide and pecan oil
I；
F, mixture I in above-mentioned extraction kettle entered in oil-liquid separator, control separating pressure 6~12Mpa, separation temperature
40~60 DEG C, pecan oil is released from the bottom of oil-liquid separator.
Preferably, the hickory kernel after broken wall is crushed in step d is in 35 DEG C of environment and dried to constant weight.
Preferably, the mixtures II after pecan oil is isolated in step f enters moisture separator, separating pressure is controlled
20~28 DEG C of 3~10Mpa, separation temperature, water is released from the bottom of moisture separator, and carbon dioxide is from moisture separator
Flow out at top.
Preferably, the pecan oil obtained in step f is put into supercentrifuge, obtained after going the removal of impurity through centrifugal treating
Refined pecan oil.
The characteristics of present invention has following and beneficial effect：
Using above-mentioned technical proposal, the pecan oil with extraction is free of organic solvent, effectively prevent tradition and extracts bar
The residual of solvent toxicity under part, while also prevent the murder by poisoning to human body and the pollution problem to environment among extraction process, together
When extraction temperature it is low, can preferably retained product bioactive ingredients, the hickory kernel after extraction pecan oil dry after i.e.
For albumen powder；In addition, by carrying out broken wall crushing to hickory kernel, so that the extraction of grease is more complete, while significantly
The efficiency of oil extraction is improved, and the water of low temperature is added when broken wall is crushed, so as to ensure the heat produced when broken wall is crushed
Amount will not destroy the bioactive ingredients of hickory kernel.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the step block diagram of the method for extracting pecan oil by using supercritical carbon dioxide fluid of the present invention.
Embodiment
The embodiment to the present invention is described further below in conjunction with the accompanying drawings.Herein it should be noted that for
The explanation of these embodiments is used to help understand the present invention, but does not constitute limitation of the invention.In addition, disclosed below
As long as each of the invention embodiment in involved technical characteristic do not constitute conflict each other and can just be mutually combined.
Embodiment 1
The invention provides a kind of method of extracting pecan oil by using supercritical carbon dioxide fluid, as shown in figure 1, including with
Lower step：
A, hickory nut after separation of hull from kernel, select hickory kernel through rejuvenator broken shell；
B, by hickory kernel be put into water impregnate 2 hours；
C, hickory kernel is subjected to broken wall crushing, during crushing, it is 0 DEG C of water that every 1 kilogram of hickory kernel, which adds 50 milliliters of temperature,；
D, the hickory kernel after above-mentioned crushing is dried；
E, above-mentioned dried hickory kernel put into extraction kettle, after spe medium carbon dioxide is measured through flowmeter
Into extraction kettle, it is 50 DEG C to control supercritical extract temperature, and supercritical extract pressure is 20Mpa, and carbon dioxide flow is 200
L/h, extraction time 1 hour, the mixture I of generation degreasing hickory kernel, liquid carbon dioxide and pecan oil；
F, mixture I in above-mentioned extraction kettle entered in oil-liquid separator, control separating pressure 6Mpa, separation temperature 40
DEG C, pecan oil is released from the bottom of oil-liquid separator.
In the present invention, the hickory kernel after broken wall is crushed in step d, which is in 35 DEG C of environment, to be dried to constant weight.
In the present invention, the mixtures II after pecan oil is isolated in step f and enters moisture separator, separating pressure is controlled
20 DEG C of 3Mpa, separation temperature, water is released from the bottom of moisture separator, and carbon dioxide flows from the top of moisture separator
Go out.
In the present invention, the pecan oil obtained in step f is put into supercentrifuge, is obtained after going the removal of impurity through centrifugal treating
Refined pecan oil.
In above-mentioned technical proposal, step b, by the way that hickory kernel is immersed in water 2 hours, so as to keep even improving
Bioactivity in hickory kernel.
In step c, by carrying out broken wall crushing to hickory kernel, break the cell membrane of hickory kernel, so that grease
Extraction it is more complete, while substantially increase the efficiency of oil extraction, and add when broken wall is crushed the water of 0 DEG C of low temperature,
So as to which the heat produced when ensureing that broken wall is crushed will not destroy the bioactive ingredients of hickory kernel.
In step d, by being crushed to broken wall after hickory kernel be dried so that ensure hickory kernel grease extract
Rate.
In step e, extraction temperature is controlled in the state of 50 DEG C, and its object is to be effectively guaranteed in hickory kernel
Heat sensitive active composition, while hickory kernel is immersed in carbon dioxide and air exclusion, it is to avoid the oxidation of pecan oil is anti-
Should, products material also and air exclusion, plays the bactericidal action to products material, together in extraction process and fluid separation process
When substantially increase the extraction efficiency of grease and the recovery rate of grease.
Using carbon dioxide as spe medium, because the chemical property torpescence of carbon dioxide, colorless and odorless are nontoxic, safety
Property is good, does not have residual in pecan oil after separation, effectively prevent the residual of solvent toxicity under traditional extraction conditions, simultaneously
It also prevent the murder by poisoning to human body and the pollution to environment among extraction process.
Embodiment 2
The invention provides a kind of method of extracting pecan oil by using supercritical carbon dioxide fluid, as shown in figure 1, including with
Lower step：
A, hickory nut after separation of hull from kernel, select hickory kernel through rejuvenator broken shell；
B, by hickory kernel be put into water impregnate 3 hours；
C, hickory kernel is subjected to broken wall crushing, during crushing, it is 5 DEG C of water that every 1 kilogram of hickory kernel, which adds 50 milliliters of temperature,；
D, the hickory kernel after above-mentioned crushing is dried；
E, above-mentioned dried hickory kernel put into extraction kettle, after spe medium carbon dioxide is measured through flowmeter
Into extraction kettle, it is 50 DEG C to control supercritical extract temperature, and supercritical extract pressure is 25Mpa, and carbon dioxide flow is 400
L/h, extraction time 1 hour, the mixture I of generation degreasing hickory kernel, liquid carbon dioxide and pecan oil；
F, mixture I in above-mentioned extraction kettle entered in oil-liquid separator, control separating pressure 9Mpa, separation temperature 50
DEG C, pecan oil is released from the bottom of oil-liquid separator.
In the present invention, the hickory kernel after broken wall is crushed in step d, which is in 35 DEG C of environment, to be dried to constant weight.
In the present invention, the mixtures II after pecan oil is isolated in step f and enters moisture separator, separating pressure is controlled
24 DEG C of 6Mpa, separation temperature, water is released from the bottom of moisture separator, and carbon dioxide flows from the top of moisture separator
Go out.
In the present invention, the pecan oil obtained in step f is put into supercentrifuge, is obtained after going the removal of impurity through centrifugal treating
Refined pecan oil.
In above-mentioned technical proposal, step c, by carrying out broken wall crushing to hickory kernel, so that the extraction of grease is more
Add entirely, while substantially increasing the efficiency of oil extraction, and the water of 5 DEG C of low temperature is added when broken wall is crushed, so as to ensure
The heat that broken wall is produced when crushing will not destroy the bioactive ingredients of hickory kernel.
Embodiment 3
The invention provides a kind of method of extracting pecan oil by using supercritical carbon dioxide fluid, as shown in figure 1, including with
Lower step：
A, hickory nut after separation of hull from kernel, select hickory kernel through rejuvenator broken shell；
B, by hickory kernel be put into water impregnate 4 hours；
C, hickory kernel is subjected to broken wall crushing, during crushing, it is 10 DEG C that every 1 kilogram of hickory kernel, which adds 50 milliliters of temperature,
Water；
D, the hickory kernel after above-mentioned crushing is dried；
E, above-mentioned dried hickory kernel put into extraction kettle, after spe medium carbon dioxide is measured through flowmeter
Into extraction kettle, it is 50 DEG C to control supercritical extract temperature, and supercritical extract pressure is 29Mpa, and carbon dioxide flow is 600
L/h, extraction time 1 hour, the mixture I of generation degreasing hickory kernel, liquid carbon dioxide and pecan oil；
F, mixture I in above-mentioned extraction kettle entered in oil-liquid separator, control separating pressure 12Mpa, separation temperature 60
DEG C, pecan oil is released from the bottom of oil-liquid separator.
In the present invention, the hickory kernel after broken wall is crushed in step d, which is in 35 DEG C of environment, to be dried to constant weight.
In the present invention, the mixtures II after pecan oil is isolated in step f and enters moisture separator, separating pressure is controlled
28 DEG C of 10Mpa, separation temperature, water is released from the bottom of moisture separator, and carbon dioxide flows from the top of moisture separator
Go out.
In the present invention, the pecan oil obtained in step f is put into supercentrifuge, is obtained after going the removal of impurity through centrifugal treating
Refined pecan oil.
In above-mentioned technical proposal, step c, by carrying out broken wall crushing to hickory kernel, so that the extraction of grease is more
Add entirely, while substantially increasing the efficiency of oil extraction, and the water of 10 DEG C of low temperature is added when broken wall is crushed, so as to ensure
The heat that broken wall is produced when crushing will not destroy the bioactive ingredients of hickory kernel.
Embodiments of the present invention are explained in detail above in association with accompanying drawing, but the invention is not restricted to described implementation
Mode.For a person skilled in the art, in the case where not departing from the principle of the invention and spirit, to these embodiments
A variety of change, modification, replacement and modification are carried out, are still fallen within protection scope of the present invention.
Claims (4)
1. a kind of method of extracting pecan oil by using supercritical carbon dioxide fluid, it is characterised in that comprise the following steps：
A, hickory nut after separation of hull from kernel, select hickory kernel through rejuvenator broken shell；
B, by hickory kernel be put into water impregnate 2-4 hours；
C, hickory kernel is subjected to broken wall crushing, during crushing, it is 0~10 DEG C of water that every 1 kilogram of hickory kernel, which adds 50 milliliters of temperature,；
D, the hickory kernel after above-mentioned crushing is dried；
E, above-mentioned dried hickory kernel put into extraction kettle, entered after spe medium carbon dioxide is measured through flowmeter
Extraction kettle, control supercritical extract temperature be 50 DEG C, supercritical extract pressure be 20~29Mpa, carbon dioxide flow be 200~
600 ls/h, extraction time 1 hour, the mixture I of generation degreasing hickory kernel, liquid carbon dioxide and pecan oil；
F, mixture I in above-mentioned extraction kettle entered in oil-liquid separator, control separating pressure 6~12Mpa, separation temperature 40~
60 DEG C, pecan oil is released from the bottom of oil-liquid separator.
2. the method for extracting pecan oil by using supercritical carbon dioxide fluid according to claim 1, it is characterized in that：Step d
Hickory kernel after middle broken wall is crushed is dried to constant weight in 35 DEG C of environment.
3. the method for extracting pecan oil by using supercritical carbon dioxide fluid according to claim 1, it is characterized in that：Step f
In isolate the mixtures II after pecan oil and enter moisture separator, 3~10Mpa of control separating pressure, separation temperature 20~
28 DEG C, water is released from the bottom of moisture separator, carbon dioxide flows out from the top of moisture separator.
4. the method for extracting pecan oil by using supercritical carbon dioxide fluid according to claim 1, it is characterized in that：Step f
In obtained pecan oil be put into supercentrifuge, refined pecan oil is obtained after going the removal of impurity through centrifugal treating.
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| CN201610555591.8A CN107164073A (en) | 2016-07-11 | 2016-07-11 | The method of extracting pecan oil by using supercritical carbon dioxide fluid |
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| CN201610555591.8A CN107164073A (en) | 2016-07-11 | 2016-07-11 | The method of extracting pecan oil by using supercritical carbon dioxide fluid |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108192735A (en) * | 2018-01-17 | 2018-06-22 | 刘勇 | Plant extraction oil, the leach extraction method of plant extraction oil and application |
| CN109439429A (en) * | 2018-12-18 | 2019-03-08 | 贵州航天乌江机电设备有限责任公司 | A kind of supercritical extraction method of walnut oil |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108192735A (en) * | 2018-01-17 | 2018-06-22 | 刘勇 | Plant extraction oil, the leach extraction method of plant extraction oil and application |
| CN109439429A (en) * | 2018-12-18 | 2019-03-08 | 贵州航天乌江机电设备有限责任公司 | A kind of supercritical extraction method of walnut oil |
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Application publication date: 20170915 |