CN110358623A - A kind of preparation method of low carbonyl valence soybean oil - Google Patents
A kind of preparation method of low carbonyl valence soybean oil Download PDFInfo
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- CN110358623A CN110358623A CN201910616765.0A CN201910616765A CN110358623A CN 110358623 A CN110358623 A CN 110358623A CN 201910616765 A CN201910616765 A CN 201910616765A CN 110358623 A CN110358623 A CN 110358623A
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- Prior art keywords
- soybean oil
- carbonyl valence
- preparation
- oil
- low carbonyl
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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
- C11B3/00—Refining fats or fatty oils
- C11B3/001—Refining fats or fatty oils by a combination of two or more of the means hereafter
-
- 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
-
- 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
- C11B3/10—Refining fats or fatty oils by adsorption
-
- 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
- C11B3/12—Refining fats or fatty oils by distillation
- C11B3/14—Refining fats or fatty oils by distillation with the use of indifferent gases or vapours, e.g. steam
Abstract
The present invention relates to a kind of preparation methods of low carbonyl valence soybean oil, comprising steps of pretreated soybean oil is passed through the first container, after adsorbent is added to the first container mixing under vacuum conditions, obtain mixture；The mixture is passed through the second reaction vessel, is decolourized under vacuum conditions, obtains slightly refining soybean oil；Low carbonyl valence soybean oil is obtained by filtration in the thick refining soybean oil under vacuum conditions.By selecting suitable adsorbent, collocation is such as combined using atlapulgite and active carbon, adsorption bleaching is carried out to soybean oil.The additional amount and bleaching temperature for controlling adsorbent, change original decolorization filtering system, and precoating tank is changed to vacuum, soybean oil is reduced and contacts with air, and the soybean oil after filtering through steam blowing is concentrated and is handled as common soya-bean oil.It is lower than 6.0meq/kg by the carbonyl valence content in the obtained purified soyabean oil of collective effect.To meet requirement of the soybean oil in health care medicinal oil to carbonyl valence.
Description
Technical field
The present invention relates to soybean oil refining techniques field more particularly to a kind of preparation methods of low carbonyl valence soybean oil.
Background technique
Soybean oil in the process of production and processing, can contain impurity, need to carry out soybean oil to remove impurity therein
Refining.
Normal refinery activities mostly use bleacher vacuum but add the precoating tank of filtration adjuvant as normal pressure state, and grease
Steam blowing filter cake is deodorized after returning bleacher or directly filtering after filtration fraction, causes to be difficult to decrease in oil and fat refining process big
Soya-bean oil carbonyl valence will lead to its rising, wherein the carbonyl valence (carbonyl group value, CGV) refers to grease
The total amount of the fatty acid containing aldehyde radical and ketone group or glyceride and its polymer that are generated when rancid.Carbonyl valence is usually with tested
The absorbance of suitable 1g (or 100mg) oil sample indicates grease at 440nm after processing, or with carbonyl in suitable 1kg oil sample
Meq number indicates.The CGV of most of rancid greases and heating deterioration oil is more than 50meq/kg, has the food of obvious tapinoma-odour can be high
Up to 70meq/kg.China provides CGV≤50meq/kg during edible vegetable oil frying.
The carbonyl valence of purified soyabean oil is mostly in 8-12meq/kg under prior art, in health care product or pharmaceutical soya-bean oil pair
Carbonyl valence is more demanding, and conventional refinery is unable to reach its requirement.
Therefore, the existing technology needs to be improved and developed.
Summary of the invention
In view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of preparation sides of low carbonyl valence soybean oil
Method, it is intended to solve the problems, such as that the carbonyl valence of purified soyabean oil under prior art is higher.
Used technical solution is as follows to solve above-mentioned technical problem by the present invention:
A kind of preparation method of low carbonyl valence soybean oil, wherein comprising steps of
Pretreated soybean oil is passed through the first container, adsorbent is added to the first container under vacuum conditions and is mixed
Afterwards, mixture is obtained；
The mixture is passed through the second reaction vessel, is decolourized under vacuum conditions, obtains slightly refining soybean oil；
Low carbonyl valence soybean oil is obtained by filtration in the thick refining soybean oil under vacuum conditions.
The preparation method of the low carbonyl valence soybean oil, wherein the adsorbent includes atlapulgite and/or activity
Charcoal.
The preparation method of the low carbonyl valence soybean oil, wherein by mass percentage, the additional amount of the adsorbent
For the 0.5%-7% of soybean oil.
The preparation method of the low carbonyl valence soybean oil, wherein when the adsorbent is atlapulgite and active carbon,
By mass percentage, the additional amount of the active carbon is the 0.2%-2% of soybean oil.
The preparation method of the low carbonyl valence soybean oil, wherein the pretreated soybean oil temperature is 70-120
℃。
The preparation method of the low carbonyl valence soybean oil, wherein the vacuum condition is that vacuum degree is less than -680mmHg.
The preparation method of the low carbonyl valence soybean oil, wherein the step is by the thick refining soybean oil in vacuum item
Low carbonyl valence soybean oil is obtained by filtration under part, specifically includes:
After the thick refining soybean oil filtering, deodorization processing is carried out under vacuum conditions, it will deodorization treated soybean oil nitrogen charging
It saves, obtains low carbonyl valence soybean oil.
The preparation method of the low carbonyl valence soybean oil, wherein the step is by the thick refining soybean oil in vacuum item
Low carbonyl valence soybean oil is obtained by filtration under part, wherein precoating before the filtering to the filter in filter.
The preparation method of the low carbonyl valence soybean oil, wherein the adjuvant used precoating is perlite or diatomite.
The preparation method of the low carbonyl valence soybean oil, wherein described to decolourize under vacuum conditions, bleaching time
For 30-35min.
The utility model has the advantages that a kind of preparation method of low carbonyl valence soybean oil provided by the present invention, using adsorbent in vacuum
Under the conditions of decolorization adsorption is carried out to soybean oil to be filtered, refine the content of obtained soybean oil carbonyl valence in 6.0meq/kg
Below.
Detailed description of the invention
Fig. 1 is the process flow for the low carbonyl valence soybean oil preparation method preferred embodiment that embodiment of the present invention provides
Figure.
Fig. 2 is the flow chart of low carbonyl valence soybean oil preparation method preferred embodiment provided in an embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer and more explicit, right as follows in conjunction with drawings and embodiments
The present invention is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and do not have to
It is of the invention in limiting.
A kind of preparation method of low carbonyl valence soybean oil provided by the present invention, the method specifically include step:
S100, pretreated soybean oil is passed through the first container, adsorbent is added to described first under vacuum conditions and is held
After device mixing, mixture is obtained；
Specifically, referring to FIG. 1, soybean oil is passed through drying chamber, is dried under vacuum conditions, do after de- soap processing
Dry treated that soybean oil is driven into pre- decoloring reaction tank, and soybean oil is heated to 70-120 DEG C under vacuum conditions, is being stirred
Adsorbent is added under the conditions of mixing, stirs, obtains the mixture of soybean oil and adsorbent, wait to be filtered.Vacuum condition is vacuum degree
Less than -680mmHg.
In some embodiments, the adsorbent includes atlapulgite and/or active carbon.By mass percentage, institute
The additional amount for stating adsorbent accounts for the 0.5%-7% of soybean oil.When the additional amount of adsorbent is lower than the 0.5% of soybean oil, drop is not had
The effect of low carbonyl valence when adsorbent additional amount is higher than 7%, will affect subsequent filtering, reduce filter efficiency.
Specifically, when adsorbent uses atlapulgite, because atlapulgite can also promote the oxidation of soybean oil
The oil product of soybean oil is influenced, additive amount will lead to the rising of carbonyl valence, can reduce carbonyl valence when adding excessive (>=4.0%) when few, but
It is that production efficiency will be greatly reduced, mainly since the excessive filter filter efficiency of carclazyte can reduce (the estimated drop of production efficiency
It is low 50%).
When adsorbent uses active carbon, since active carbon oil absorbency is higher and price is also high, additional amount is also controlled
In 0.5%-7%.
In one or more embodiments, the adsorbent is that atlapulgite is used in mixed way with active carbon, preferably, institute
The additional amount for stating active carbon is 0.2%-2%.
S200, the mixture is passed through the second reaction vessel, decolourized under vacuum conditions, obtain slightly refining soybean
Oil；
Specifically, with continued reference to FIG. 1, mixture to be filtered is flowed into bleacher, under vacuum conditions, stirring is de-
Color 30-35min.Such as decoloration 30min obtains preferable decolorizing effect.
S300, low carbonyl valence soybean oil is obtained by filtration in the thick refining soybean oil under vacuum conditions.
Specifically, it with continued reference to FIG. 1, before being filtered after decoloration, needs pre- to the filter in filter
It applies, that is, needs to form one layer of filter layer on filter.Wherein precoating used auxiliary agent is perlite or diatomite.
Further, precoating requires to carry out under vacuum conditions, is the vacuum that need to abolish precoating tank in addition auxiliary agent, in auxiliary agent
Valve is shut after the completion of addition to continue to keep vacuum.This step is to carry out under vacuum conditions, so as to avoid in pre-coating process
Contact of the grease with air, causes the oxidation to grease.The mark that precoating terminates be auxiliary agent in precoating tank it is oily mix after and
Filter beats circular treatment, and soybean oil is as clear as crystal after the filter；Make to coat one layer of auxiliary agent on the filter of filter,
Keep next filter effect more preferable, filter efficiency is higher.
Further, it is filtered after the completion of precoating, filtering need to be with steam by Residual oil more in carclazyte when being near completion
It purges out, purges oil sample centralized processing at this time and produced as common soya-bean oil；Because the Residual oil oxidation in carclazyte is serious, do
It handles respectively.Filtered soybean oil carries out deodorization processing under vacuum conditions, and after the completion of deodorization, cooling is filled with nitrogen and is protected
It deposits, obtains low carbonyl valence soybean oil.
Low carbonyl valence soybean oil preparation method provided by the present invention is carried out below by specific embodiment further
Explanation.
Comparative example 1
Pre- decoloring reaction tank is squeezed into after 80-130 DEG C of vacuum drying at 110 DEG C by the soybean oil of chemical alkali refining, system vacuum
To add 1.0% atlapulgite under -720mmHg, bleacher decoloration 20-60min is flowed into, which stirs with direct steam, take off
It is filtered by filter after the completion of color, needs to precoat filter filter before filtering, diatomite or perlite and precoating
After oil mixes in tank and filter beats circular treatment until oily as clear as crystal after the filter, and precoating is filtered after the completion,
Having a small amount of Residual oil in carclazyte filter cake into after filtering need to be purged out with steam, this part of amount of grease aoxidizes more serious collection
In be purged to Residual oil tank and handled as common soya-bean oil, direct steam vapour at the grease after decolorization filtering is 240 DEG C in deodorization temperature
Mention after 1-5h vacuum cooled to 20-60 DEG C simultaneously inflated with nitrogen save.Purified soyabean oil carbonyl valence 9.42meq/kg
Embodiment 1
By the soybean oil of chemical alkali refining pre- decoloring reaction tank is squeezed into after 70 DEG C of vacuum drying at 110 DEG C, system vacuum is-
4.5% atlapulgite is added under 720mmHg, flows into bleacher decoloration 30min, which stirs with direct steam, and decoloration is completed
It is filtered afterwards by filter, needs to precoat filter filter before filtering, oil in diatomite or perlite and precoating tank
After mixing and filter beats circular treatment until oil is as clear as crystal after the filter, and precoating is filtered after the completion, into crossing
Having a small amount of Residual oil after filter in carclazyte filter cake need to be purged out with steam, this part of amount of grease aoxidizes more serious concentration purging
It is handled to Residual oil tank as common soya-bean oil, after direct steam strips 1h at the grease after decolorization filtering is 240 DEG C in deodorization temperature
Vacuum cooled is to 20 DEG C while inflated with nitrogen saves.Purified soyabean oil carbonyl valence 3.70meq/kg
Embodiment 2
By the soybean oil of chemical alkali refining pre- decoloring reaction tank is squeezed into after 80 DEG C of vacuum drying at 85 DEG C, system vacuum is-
The bleaching clay of addition 1.0% is combined with 0.5% active carbon under 720mmHg, flows into bleacher decoloration 30min, the process is with straight
Connect steam-stirring, filtered after the completion of decoloration by filter, filtering needs to precoat filter filter before, diatomite or
After perlite is mixed with oil in precoating tank and filter beats circular treatment until oily as clear as crystal after the filter, and precoating is completed
After be filtered, having a small amount of Residual oil in carclazyte filter cake into after filtering need to be purged out with steam, this part of amount of grease oxygen
Change more serious concentration to be purged to Residual oil tank and handle as common soya-bean oil, the grease after decolorization filtering is 245 DEG C in deodorization temperature
Vacuum cooled is to 30 DEG C while inflated with nitrogen saves after lower direct steam stripping 2h.Purified soyabean oil carbonyl valence 2.98meq/kg.
Embodiment 3
By the soybean oil of chemical alkali refining pre- decoloring reaction tank is squeezed into after 90 DEG C of vacuum drying at 103 DEG C, system vacuum is-
The bleaching clay of addition 0.5% is combined with 0.5% active carbon under 680mmHg, flows into bleacher decoloration 35min, the process is with straight
Connect steam-stirring, filtered after the completion of decoloration by filter, filtering needs to precoat filter filter before, diatomite or
After perlite is mixed with oil in precoating tank and filter beats circular treatment until oily as clear as crystal after the filter, and precoating is completed
After be filtered, having a small amount of Residual oil in carclazyte filter cake into after filtering need to be purged out with steam, this part of amount of grease oxygen
Change more serious concentration to be purged to Residual oil tank and handle as common soya-bean oil, the grease after decolorization filtering is 235 DEG C in deodorization temperature
Vacuum cooled is to 40 DEG C while inflated with nitrogen saves after lower direct steam stripping 4h.Purified soyabean oil carbonyl valence 2.87meq/kg.
Embodiment 4
By the soybean oil of chemical alkali refining pre- decoloring reaction tank is squeezed into after 100 DEG C of vacuum drying at 105 DEG C, system vacuum is-
The bleaching clay of addition 1% is combined with 0.8% active carbon under 650mmHg, flows into bleacher decoloration 35min, the process is with directly
Steam-stirring is filtered after the completion of decoloration by filter, needs to precoat filter filter before filtering, diatomite or treasure
After Zhu Yan is mixed with oil in precoating tank and filter beats circular treatment until oil is as clear as crystal after the filter, after the completion of precoating
It is filtered, having a small amount of Residual oil in carclazyte filter cake into after filtering need to be purged out with steam, this part of amount of grease oxidation
More serious concentration is purged to Residual oil tank and handles as common soya-bean oil, and the grease after decolorization filtering is in the case where deodorization temperature is 230 DEG C
Vacuum cooled is to 40 DEG C after direct steam stripping 5h while inflated with nitrogen saves.Purified soyabean oil carbonyl valence 2.57meq/kg.
Embodiment 5
By the soybean oil of chemical alkali refining pre- decoloring reaction tank is squeezed into after 110 DEG C of vacuum drying at 105 DEG C, system vacuum is-
The bleaching clay of addition 4% is combined with 1% active carbon under 630mmHg, flows into bleacher decoloration 35min, the process is with directly steaming
Vapour stirring, is filtered after the completion of decoloration by filter, needs to precoat filter filter before filtering, diatomite or pearl
After rock is mixed with oil in precoating tank and filter beats circular treatment until oily as clear as crystal after the filter, and precoating is completed laggard
Row filtering, having a small amount of Residual oil in carclazyte filter cake into after filtering need to be purged out with steam, this part of amount of grease oxidation compared with
Residual oil tank is purged to as common soya-bean oil handling, the grease after decolorization filtering is straight at being 240 DEG C in deodorization temperature seriously to concentrate
Connect after steam stripping 5h vacuum cooled to 40 DEG C simultaneously inflated with nitrogen save.Purified soyabean oil carbonyl valence 2.37meq/kg.
Embodiment 6
By the soybean oil of chemical alkali refining pre- decoloring reaction tank is squeezed into after 120 DEG C of vacuum drying at 115 DEG C, system vacuum is-
The bleaching clay of addition 5% is combined with 2% active carbon under 650mmHg, flows into bleacher decoloration 35min, the process is with directly steaming
Vapour stirring, is filtered after the completion of decoloration by filter, needs to precoat filter filter before filtering, diatomite or pearl
After rock is mixed with oil in precoating tank and filter beats circular treatment until oily as clear as crystal after the filter, and precoating is completed laggard
Row filtering, having a small amount of Residual oil in carclazyte filter cake into after filtering need to be purged out with steam, this part of amount of grease oxidation compared with
Residual oil tank is purged to as common soya-bean oil handling, the grease after decolorization filtering is straight at being 245 DEG C in deodorization temperature seriously to concentrate
Connect after steam stripping 5h vacuum cooled to 40 DEG C simultaneously inflated with nitrogen save.Purified soyabean oil carbonyl valence 2.31meq/kg.
Embodiment 7
By the soybean oil of chemical alkali refining pre- decoloring reaction tank is squeezed into after 120 DEG C of vacuum drying at 105 DEG C, system vacuum is-
The bleaching clay of addition 5% is combined with 2% active carbon under 630mmHg, flows into bleacher decoloration 35min, the process is with directly steaming
Vapour stirring, is filtered after the completion of decoloration by filter, needs to precoat filter filter before filtering, diatomite or pearl
After rock is mixed with oil in precoating tank and filter beats circular treatment until oily as clear as crystal after the filter, and precoating is completed laggard
Row filtering, having a small amount of Residual oil in carclazyte filter cake into after filtering need to be purged out with steam, this part of amount of grease oxidation compared with
Residual oil tank is purged to as common soya-bean oil handling, the grease after decolorization filtering is straight at being 230 DEG C in deodorization temperature seriously to concentrate
Connect after steam stripping 5h vacuum cooled to 40 DEG C simultaneously inflated with nitrogen save.Purified soyabean oil carbonyl valence 2.13meq/kg.
From in comparative example 1 and embodiment 1-7 result obtained it can be seen that the present invention provided in low carbonyl valence it is big
The soybean oil carbonyl valence that soya-bean oil preparation method is produced is in 6.0 meq/kg or less.
In conclusion a kind of preparation method of low carbonyl valence soybean oil provided by the present invention, by selecting suitable inhale
Attached dose, collocation is such as combined using atlapulgite and active carbon, adsorption bleaching is carried out to soybean oil.Control the addition of adsorbent
Amount and bleaching temperature, change original decolorization filtering system, and precoating tank is changed to vacuum, soybean oil is reduced and contacts with air,
And the soybean oil after filtering through steam blowing is concentrated and is handled as common soya-bean oil.Pass through the obtained Refined Soybean of collective effect
Carbonyl valence content in oil is lower than 6.0meq/kg.To meet requirement of the soybean oil in health care medicinal oil to carbonyl valence.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention
Protect range.
Claims (10)
1. a kind of preparation method of low carbonyl valence soybean oil, which is characterized in that comprising steps of
Pretreated soybean oil is passed through the first container, adsorbent is added to the first container under vacuum conditions and is mixed
Afterwards, mixture is obtained；
The mixture is passed through the second reaction vessel, is decolourized under vacuum conditions, obtains slightly refining soybean oil；
Low carbonyl valence soybean oil is obtained by filtration in the thick refining soybean oil under vacuum conditions.
2. the preparation method of low carbonyl valence soybean oil according to claim 1, which is characterized in that the adsorbent includes living
Property carclazyte and/or active carbon.
3. the preparation method of low carbonyl valence soybean oil according to claim 2, which is characterized in that by mass percentage,
The additional amount of the adsorbent is the 0.5%-7% of soybean oil.
4. the preparation method of low carbonyl valence soybean oil according to claim 2, which is characterized in that when the adsorbent is to live
Property carclazyte and when active carbon, by mass percentage, the additional amount of the active carbon is the 0.2%-2% of soybean oil.
5. the preparation method of low carbonyl valence soybean oil according to claim 1, which is characterized in that described pretreated big
Soya-bean oil temperature is 70-120 DEG C.
6. according to the preparation method of low carbonyl valence soybean oil described in claim 1, which is characterized in that the vacuum condition is vacuum
Degree is less than -680mmHg.
7. the preparation method of low carbonyl valence soybean oil according to claim 1, which is characterized in that the step will be described thick
Low carbonyl valence soybean oil is obtained by filtration in refining soybean oil under vacuum conditions, specifically includes:
After the thick refining soybean oil filtering, deodorization processing is carried out under vacuum conditions, it will deodorization treated soybean oil nitrogen charging
It saves, obtains low carbonyl valence soybean oil.
8. the preparation method of low carbonyl valence soybean oil according to claim 1, which is characterized in that the step will be described thick
Low carbonyl valence soybean oil is obtained by filtration in refining soybean oil under vacuum conditions, wherein to the filtering in filter before the filtering
Piece is precoated.
9. the preparation method of low carbonyl valence soybean oil according to claim 8, which is characterized in that the precoating is adjuvant used
For perlite or diatomite.
10. the preparation method of low carbonyl valence soybean oil according to claim 1, which is characterized in that described in vacuum condition
Under decolourize, bleaching time 30-35min.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110982619A (en) * | 2019-11-15 | 2020-04-10 | 克拉玛依红果实生物制品有限公司 | Process capable of effectively improving content of linolenic acid in refined vegetable oil |
| CN113122388A (en) * | 2019-12-30 | 2021-07-16 | 嘉吉公司 | Method for refining edible oil |
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| CN103710144A (en) * | 2013-12-25 | 2014-04-09 | 南海油脂工业(赤湾)有限公司 | Preparation method of low-methoxyaniline value soybean oil |
| CN107474942A (en) * | 2017-09-30 | 2017-12-15 | 衢州刘家香食品有限公司 | A kind of processing method of high oryzanol rice bran oil |
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2019
- 2019-07-09 CN CN201910616765.0A patent/CN110358623B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103710144A (en) * | 2013-12-25 | 2014-04-09 | 南海油脂工业(赤湾)有限公司 | Preparation method of low-methoxyaniline value soybean oil |
| CN107474942A (en) * | 2017-09-30 | 2017-12-15 | 衢州刘家香食品有限公司 | A kind of processing method of high oryzanol rice bran oil |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110982619A (en) * | 2019-11-15 | 2020-04-10 | 克拉玛依红果实生物制品有限公司 | Process capable of effectively improving content of linolenic acid in refined vegetable oil |
| CN113122388A (en) * | 2019-12-30 | 2021-07-16 | 嘉吉公司 | Method for refining edible oil |
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