CN108998207A - A kind of oil expression method preventing peanut oxidative rancidity - Google Patents
A kind of oil expression method preventing peanut oxidative rancidity Download PDFInfo
- Publication number
- CN108998207A CN108998207A CN201810888386.2A CN201810888386A CN108998207A CN 108998207 A CN108998207 A CN 108998207A CN 201810888386 A CN201810888386 A CN 201810888386A CN 108998207 A CN108998207 A CN 108998207A
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- CN
- China
- Prior art keywords
- oil
- peanut
- oxidative rancidity
- shelled peanut
- expression method
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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
- C11B1/06—Production of fats or fatty oils from raw materials by pressing
-
- 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
- C11B3/00—Refining fats or fatty oils
- C11B3/008—Refining fats or fatty oils by filtration, e.g. including ultra filtration, dialysis
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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)
- Microbiology (AREA)
- Edible Oils And Fats (AREA)
- Fats And Perfumes (AREA)
Abstract
The invention discloses a kind of oil expression methods for preventing peanut oxidative rancidity, comprising the following steps: chooses shelled peanut and cleans；The coat of shelled peanut is removed by method of expanding with heat and contract with cold；Shelled peanut placement is toasted in an oven, oven temperature is adjusted to 35 DEG C -60 DEG C, makes its moisture content 5-7wt%, is constantly filled with inert gas in an oven in baking process；Shelled peanut in above-mentioned steps is crushed and is rolled embryo, is passed through inert gas during being crushed and rolling embryo；It shelled peanut, animal fat and natural after embryo will be rolled is sent to together and squeezed to obtain crude oil in squeezer；It is filtered crude oil placement to obtain finished product peanut oil in the filter and place it in oil drum.The present invention prevents peanut from generating the reaction of oxidative rancidity in cold pressing process, while avoiding finished product peanut oil from contacting when being fitted into oil drum with air and generating oxidative rancidity.
Description
Technical field
The invention belongs to vegetable oil processing technique fields, and in particular to a kind of oil expression method for preventing peanut oxidative rancidity.
Background technique
Peanut oil is a kind of vegetable fat using peanut as waste, it is full of nutrition, wherein insatiable hunger rich in
With fatty acid, vitamin E, resveratrol, β-sitosterol etc..The extracting process of the current peanut oil in China has two classes: hot moulding method and
Cold-press.Peanut can cause linolenic acid in peanut, linoleic acid, vitamin E etc. to seek during hot moulding because pressing temperature is excessively high
Support component damages and peanut protein denaturation.It is contacted due to shelled peanut with air in peanut cold pressing process, in cold pressing process
There is also the slight rancid oxidations of peanut, make the second-rate of finished product peanut oil；When finished product peanut oil is beaten into oil drum
The rancid oxidation of peanut oil is be easy to cause since the air in oil drum is contacted with product oil.
Summary of the invention
The object of the invention is that providing a kind of oil expression side for preventing peanut oxidative rancidity to solve the above-mentioned problems
Method prevents peanut from generating the reaction of oxidative rancidity in cold pressing process, at the same avoid finished product peanut oil when being fitted into oil drum with
Air contact generates oxidative rancidity.
The present invention through the following technical solutions to achieve the above objectives:
A kind of oil expression method preventing peanut oxidative rancidity, includes the following steps:
Step 1: it chooses shelled peanut and cleans；
Step 2: the coat of shelled peanut is removed by method of expanding with heat and contract with cold；
Step 3: shelled peanut placement is toasted in an oven, oven temperature is adjusted to 35 DEG C -60 DEG C, makes its moisture content
5-7wt% is constantly filled with inert gas in an oven in baking process；
Step 4: being crushed and rolled embryo for the shelled peanut in above-mentioned steps, is passed through inert gas during being crushed and rolling embryo；
Step 5: it shelled peanut, animal fat and natural after embryo will be rolled is sent in squeezer together and press
Squeezing obtains crude oil；
Step 6: it is filtered crude oil placement to obtain finished product peanut oil in the filter and place it in oil drum.
As a further optimization solution of the present invention, the method for shelled peanut coat is removed in step 2 are as follows: shone with infrared ray
It penetrates shelled peanut and takes off shelled peanut coat after cooling down.
As a further optimization solution of the present invention, the inert gas in step 3 and step 4 is carbon dioxide or nitrogen
Gas avoids having air residual between grating peanut benevolence, and then avoids generating oxidative rancidity reaction during producing crude oil.
As a further optimization solution of the present invention, the natural anti-reflecting oxide in step 5 is beta carotene.
As a further optimization solution of the present invention, the animal fat in step 5 is lard or duck oil.
As a further optimization solution of the present invention, in step 6 before beating into finished product peanut oil in oil drum, oil drum
In be filled with carbon dioxide, avoid in oil drum inculcate finished product peanut oil when, peanut oil contacted with the oxygen in air generation oxygen
Change rancid.
As a further optimization solution of the present invention, it contains and is equipped with oil inlet and titanium dioxide above the oil drum of finished product peanut oil
Carbon inlet and outlet, are equipped with oil outlet below, inert gas are inputted in oil drum by the carbon dioxide inlet and outlet of top, herein mistake
The air in oil drum is discharged from oil outlet in the oil outlet that lower section is opened in journey；It is closed out when inculcating finished product peanut oil in oil drum
Hydraulic fluid port opens carbon dioxide inlet and outlet while inculcating finished product peanut oil, while finished product peanut oil enters oil drum, by
In the change of air pressure in oil drum, oil drum is discharged in partial CO 2 gas, since the molecular weight of carbon dioxide gas is bigger than air,
Therefore it is entered in oil drum almost without air from carbon dioxide in the process；And in finished product peanut oil doped with
The density of animal oil, the density ratio peanut oil of animal oil is big, therefore has one layer of animal oil in the top layer of oil drum, completely cuts off peanut oil
With extraneous contact；Oil outlet is located at the lower section of oil drum, avoids damage to moving above peanut oil when peanut oil in using oil drum
Object oil reservoir.
The beneficial effects of the present invention are:
The present invention prevents peanut from generating oxygen in the process by being constantly passed through inert gas during toasting, being crushed, roll embryo
Change rancid reaction；Peanut oil rancid oxidation during oil expression is prevented by animal fat and natural；Pass through
Carbon dioxide gas and animal fat in oil drum avoid finished product peanut oil from contacting with the oxygen in air and generate oxidizing acid
It loses.
Specific embodiment
The application is described in further detail below, it is necessary to which indicated herein to be, following specific embodiments are only used
It is further detailed in the application, should not be understood as the limitation to the application protection scope, person skilled in art
Some nonessential modifications and adaptations can be made to the application according to above-mentioned application content.
A kind of oil expression method preventing peanut oxidative rancidity, includes the following steps:
Step 1: it chooses shelled peanut and cleans；
Step 2: the coat of shelled peanut is removed by method of expanding with heat and contract with cold: taking off flower with infrared radiation shelled peanut and after cooling down
Raw benevolence coat；
Step 3: shelled peanut placement is toasted in an oven, oven temperature is adjusted to 35 DEG C, makes its moisture content 5-
7wt% is constantly filled with carbon dioxide in an oven in baking process；
Step 4: being crushed and rolled embryo for the shelled peanut in above-mentioned steps, is passed through carbon dioxide during being crushed and rolling embryo
Gas avoids having air residual between grating peanut benevolence, and then avoids generating oxidative rancidity reaction during producing crude oil.
Step 5: it shelled peanut, lard and beta carotene after embryo will be rolled is sent to together and carry out squeezing in squeezer
To crude oil；
Step 6: it is filtered crude oil placement to obtain finished product peanut oil in the filter；Carbon dioxide gas is passed through in oil drum
Body, and finished product peanut oil is filled into oil drum by the oil inlet above oil drum；
In step 6 before beating into finished product peanut oil in oil drum, it is filled with carbon dioxide in oil drum, avoids filling in oil drum
When defeated finished product peanut oil, peanut oil is contacted with the oxygen in air occurs oxidative rancidity.
It contains and is equipped with oil inlet and carbon dioxide inlet and outlet above the oil drum of finished product peanut oil, be equipped with oil outlet below,
Inert gas is inputted in oil drum by the carbon dioxide inlet and outlet of top, the oil outlet for opening lower section in the process makes oil drum
In air from oil outlet be discharged；Oil outlet is closed when inculcating finished product peanut oil in oil drum, in the same of implantation finished product peanut oil
When open carbon dioxide inlet and outlet, while finished product peanut oil enters oil drum, due to the change of air pressure in oil drum, part two
Oil drum is discharged in carbon oxide gas, since the molecular weight of carbon dioxide gas is bigger than air, in the process almost without sky
Gas enters in oil drum from carbon dioxide；And doped with animal oil, the density ratio flower of animal oil in finished product peanut oil
The density of oil generation is big, therefore has one layer of animal oil, the contact of isolation peanut oil and the external world in the top layer of oil drum；Oil outlet is located at
The lower section of oil drum avoids damage to the animal oil reservoir above peanut oil in using oil drum when peanut oil.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.
Claims (7)
1. a kind of oil expression method for preventing peanut oxidative rancidity, which comprises the steps of:
Step 1: it chooses shelled peanut and cleans；
Step 2: the coat of shelled peanut is removed by method of expanding with heat and contract with cold；
Step 3: shelled peanut placement is toasted in an oven, oven temperature is adjusted to 35 DEG C -60 DEG C, makes its moisture content
5-7wt% is constantly filled with inert gas in an oven in baking process；
Step 4: being crushed and rolled embryo for the shelled peanut in above-mentioned steps, is passed through inert gas during being crushed and rolling embryo；
Step 5: it shelled peanut, animal fat and natural after embryo will be rolled is sent in squeezer together and press
Squeezing obtains crude oil；
Step 6: it is filtered crude oil placement to obtain finished product peanut oil in the filter and place it in oil drum.
2. a kind of oil expression method for preventing peanut oxidative rancidity according to claim 1, which is characterized in that in step 2
Except the method for shelled peanut coat are as follows: take off shelled peanut coat with infrared radiation shelled peanut and after cooling down.
3. a kind of oil expression method for preventing peanut oxidative rancidity according to claim 1, which is characterized in that step 3 and step
Inert gas in rapid four is carbon dioxide or nitrogen.
4. a kind of oil expression method for preventing peanut oxidative rancidity according to claim 1, which is characterized in that in step 5
Natural anti-reflecting oxide is beta carotene.
5. a kind of oil expression method for preventing peanut oxidative rancidity according to claim 1, which is characterized in that in step 5
Animal fat is lard or duck oil.
6. a kind of oil expression method for preventing peanut oxidative rancidity according to claim 1, which is characterized in that in step 6
Before finished product peanut oil is beaten into oil drum, carbon dioxide is filled in oil drum.
7. a kind of oil expression method for preventing peanut oxidative rancidity according to claim 1, which is characterized in that contain finished product flower
It is equipped with oil inlet above the oil drum of oil generation and carbon dioxide is imported and exported, is equipped with oil outlet below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810888386.2A CN108998207A (en) | 2018-08-07 | 2018-08-07 | A kind of oil expression method preventing peanut oxidative rancidity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810888386.2A CN108998207A (en) | 2018-08-07 | 2018-08-07 | A kind of oil expression method preventing peanut oxidative rancidity |
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| CN108998207A true CN108998207A (en) | 2018-12-14 |
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| CN201810888386.2A Pending CN108998207A (en) | 2018-08-07 | 2018-08-07 | A kind of oil expression method preventing peanut oxidative rancidity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116640619A (en) * | 2023-06-01 | 2023-08-25 | 中粮营养健康研究院有限公司 | Peanut oil and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116640619A (en) * | 2023-06-01 | 2023-08-25 | 中粮营养健康研究院有限公司 | Peanut oil and preparation method thereof |
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