CN108795572A - The selective absorption discoloration method of one vegetable oil - Google Patents
The selective absorption discoloration method of one vegetable oil Download PDFInfo
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- CN108795572A CN108795572A CN201810627445.0A CN201810627445A CN108795572A CN 108795572 A CN108795572 A CN 108795572A CN 201810627445 A CN201810627445 A CN 201810627445A CN 108795572 A CN108795572 A CN 108795572A
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- vegetable oil
- oil
- selective absorption
- decolourized
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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
- C11B3/10—Refining fats or fatty oils by adsorption
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
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- Organic Chemistry (AREA)
- Fats And Perfumes (AREA)
Abstract
The present invention discloses the selective absorption discoloration method of a vegetable oil, and for the decolorization in vegetable oil refining, the absorption decoloring method of the vegetable oil includes the following steps：Adsorbent is added into vegetable oil to be decolourized, heats and stirs to carry out selective absorption decoloration, then filter and collect filtrate, obtains decoloration vegetable oil, wherein the vegetable oil to be decolourized is the dark vegetable oil crude oil produced through hot moulding.The present invention is heated and is stirred to carry out selective absorption decoloration, then filtered and collect filtrate to get to decoloration vegetable oil, enterprise's color value that color value meets vegetable oil requires by adding adsorbent into the dark vegetable oil to be decolourized produced through hot moulding.
Description
Technical field
The present invention relates to vegetable oil processing technique field, more particularly to the selective absorption discoloration methods of a vegetable oil.
Background technology
There are many method of grease-decolor, mainly there is adsorption bleaching, heating decoloration, oxidative decoloration, chemical reagent decoloring method etc.,
Most widely used in industrial production is adsorption decoloring method.Contain the pigment that quantity and kind are different in grease：Respectively
Organic pigment (chlorophyll, carotenoid, lutein), organic degradation object, these substances make vegetable oil show green, it is red,
Yellow is rendered as sepia, even black when content is higher.Traditional adsorption bleaching is exactly that these coloring matters in grease are taken off
Except making grease be rendered as light grease that is colourless or meeting edible oil national standard, (in edible oil national standard, different greases are not
The edible oil of ad eundem has defined value, quantization red with lovibond test, yellow, blue).
However, natural pigment therein such as chlorophyll, carotenoid, lutein are all harmless, excessively removing is that do not have
It is necessary.And existing absorption decoloring method is in adsorption bleaching, when a certain color value is higher in grease, it will usually using increasing
The method of decolorising agent dosage makes it be reduced to certain color value, and in this process, the not high color of other original color values also can
It reduces very much, and excessive adsorbent can also adsorb 20%~40% grease, cause the excessive loss of grease.Secondly, right
It is right for the non-national standard vegetable oil in part (not up to edible oil national standard but meet the vegetable oil of company standard) in the market
Partially monochromatic grease (such as green, red) is presented, and there is also certain demands, therefore, do not need to all color values in vegetable oil
It handles to meeting edible oil national standard and requires enough.
Invention content
The main object of the present invention is to propose the selective absorption discoloration method of a vegetable oil, it is intended to be made into vegetable oil
Color value meets enterprise requirements.
To achieve the above object, the present invention proposes the selective absorption discoloration method of a vegetable oil, is used for vegetable oil fine
The selective absorption discoloration method of decolorization in refining, the vegetable oil includes the following steps：Add into vegetable oil to be decolourized
Add adsorbent, heat and stir to carry out selective absorption decoloration, then filter and collect filtrate, obtains decoloration vegetable oil,
In, the vegetable oil to be decolourized is the dark vegetable oil crude oil produced through hot moulding.
Preferably, the quality of the adsorbent is the 0.5%~5% of the plant oil quality.
Preferably, the vegetable oil to be decolourized is rapeseed oil, rice bran oil, peanut oil, sesame oil or tea-seed oil.
Preferably, described after decoloration vegetable oil is hot moulding, by the vegetable oil of filtering and degumming or depickling processing.
Preferably, the adsorbent includes activated carbon, atlapulgite, attapulgite, zeolite molecular sieve and activation rice husk
At least one of ash.
Preferably, the heating temperature is 20~260 DEG C, and the mixing time of the stirring is 5~40min.
Preferably, the heating temperature is 80~260 DEG C；And
Adsorbent is added into vegetable oil to be decolourized, after being mixed at a temperature of 80~260 DEG C to carry out adsorption bleaching,
65~75 DEG C are rapidly cooled to, filtrate is then filtered and collect, obtains decoloration vegetable oil.
In technical solution provided by the invention, adsorbed by being added into the deeper vegetable oil of color produced through hot moulding
Agent is heated and is stirred to carry out selective absorption decoloration, is then filtered and is collected filtrate to get to decoloration vegetable oil, makes its color
Value meets enterprise's color value requirement of vegetable oil.
Specific implementation mode
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, builds according to normal condition or manufacturer
The condition of view carries out.Reagents or instruments used without specified manufacturer is the conventional production that can be obtained by commercially available purchase
Product.
The present invention proposes the selective absorption discoloration method of a vegetable oil, the decolorization being used in vegetable oil refining,
The selective absorption discoloration method of the vegetable oil includes the following steps：Adsorbent is added into vegetable oil to be decolourized, heating is simultaneously
Then filtrate is filtered and collected to stirring to carry out selective absorption decoloration, obtain decoloration vegetable oil, wherein described to wait for that decoloration is planted
Object oil is the dark vegetable oil crude oil produced through hot moulding.
Contain the pigment that quantity and kind are different in grease：Respectively organic pigment (chlorophyll, carotenoid, leaf
Flavine), organic degradation object, these substances make vegetable oil show green, red, yellow, sepia are rendered as when content is higher,
Even black.Traditional adsorption bleaching is exactly so that grease is rendered as colourless or is met edible these coloring matters removing in grease
Oily national standard light grease (in edible oil national standard, the different different grades of edible oils of grease have defined value, with
Red, yellow, the blue quantization of lovibond test), during this decolorization, if a certain color value is higher in grease, it will usually adopt
It is set to be reduced to certain color value with the method for increasing decolorising agent dosage, the color for causing other original color values not high can also reduce
Very much.However (not up to edible oil national standard but the plant of company standard is met for the non-national standard vegetable oil in part in the market
Object oil) for, to partially monochromatic grease (as green, red) is presented, there is also certain demands, therefore, do not need to vegetable oil
In all color values handle to meeting edible oil national standard and require enough.
In technical solution provided by the invention, adsorbed by being added into the dark vegetable oil to be decolourized produced through hot moulding
Agent is heated and is stirred to carry out selective absorption decoloration, then filter and collect filtrate to get to decoloration vegetable oil, color value
Meet enterprise's color value requirement of vegetable oil.
The effect of the adsorbent is the pigment in Adsorption oil plant, if its additive amount is too low, can not effectively be taken off
Except the pigment in oil plant, and if its additive amount is excessive, excessive adsorbent can adsorb 20%~40% grease, cause grease
Excessive loss.Therefore, in the present embodiment, the quality of the adsorbent be preferably the plant oil quality 0.5%~
5%.
For the vegetable oil obtained from different oil crops and by different extracting methods, color has
Have shallow deeply, for example, compared to soybean oil, the color of rapeseed oil, sesame oil etc. is deeper, in another example, compared to passing through cold press or leaching
Go out the vegetable oil of technique acquisition, the color for the vegetable oil produced through hot moulding is deeper.And the plant provided in an embodiment of the present invention
In vegetable oil deeper for color, decolorizing effect becomes apparent the absorption decoloring method of oil, therefore, the plant to be decolourized
Rapeseed oil, rice bran oil, peanut oil, sesame oil or the tea-seed oil (crude oil) that oil is preferably produced by hot moulding.
Oil crops after hot moulding is produced to obtain crude oil, by crude oil contain more impurity, therefore, it is necessary to crude oil into
Row refining processing, refining processing generally comprise degumming, depickling, decoloration and deodorization processing, and degumming process is removing in crude oil
Peptized impurities, depickling handle to remove the free fatty in crude oil.It, can in the refining process of the general edible oil of national standard
Individually only to carry out degumming or depickling processing, and in the refining process of national standard table oil, then need to crude oil successively into
Row degumming and depickling processing, the adsorption bleaching that the present invention is suitable for vegetable oil are handled, therefore, it is preferable that the vegetable oil to be decolourized
After hot moulding, by the vegetable oil of filtering and degumming or depickling processing.
The adsorbent preferably comprises activated carbon, atlapulgite, attapulgite, zeolite molecular sieve and activation rice hull ash
At least one of.The adsorbent can be activated carbon, atlapulgite, attapulgite, zeolite molecular sieve and activation rice husk
Any one of ash can also be chosen in activated carbon, atlapulgite, attapulgite, zeolite molecular sieve and activation rice hull ash
Arbitrarily two or more are compounded.
Traditional vegetable oil decoloration is handled, temperature is normally controlled in 90 DEG C or so, at this temperature, using such as
When the adsorbents such as activated carbon, atlapulgite carry out decolorization, all color values therein often are reduced simultaneously, for avoid need not
The color value wanted reduces, and the heating temperature is preferably 20~260 DEG C, and the mixing time of the stirring is 5~40min.For not
For congener vegetable oil, heating temperature when being decolourized is also different, for example, for rapeseed oil, it can be normal
Temperature is lower to carry out adsorption bleaching, and main reduction wherein blue and red color value can be in 260 DEG C of temperature for rice bran oil with for
It is lower that 0.1% phosphoric acid and 0.5~5% atlapulgite progress adsorption bleaching, the main color value for reducing wherein red is added.
When the heating temperature is relatively low, for example, when the heating temperature is not higher than 80 DEG C, the plant after adsorption bleaching
Object oil can directly be filtered and collect filtrate, and when the heating temperature is higher, then it needs first to cool down to refilter afterwards.Specifically
Ground, when the heating temperature is 80~260 DEG C, the decolorization adsorption method of the vegetable oil includes：Into vegetable oil to be decolourized
Adsorbent is added, after being mixed at a temperature of 80~260 DEG C to carry out adsorption bleaching, is rapidly cooled to 65~75 DEG C of (10min
Inside it is cooled to 65~75 DEG C), filtrate is then filtered and collected, decoloration vegetable oil is obtained.Wherein, the mode of filtering can be used
Such as the usual manners such as vacuum filtration carry out.
It should be noted that when carrying out adsorbate decoloration, its stir speed (S.S.) is not limited, it is only necessary to make the adsorbent
It is uniformly mixed with the vegetable oil to be decolourized, for example, when laboratory is operated, speed of agitator can be usually arranged
For 120r/min or so, and industrially in application, its speed of agitator usually could be provided as 60r/min；And its whipping process
It can carry out, can also carry out under vacuum under normal pressure.
Technical scheme of the present invention is described in further detail below in conjunction with specific embodiment, it should be understood that following real
It applies example to be only used to explain the present invention, be not intended to limit the present invention.
Embodiment 1
Using the rapeseed oil crude oil 5Kg that hot moulding is produced as vegetable oil to be decolourized, activated carbon 25g is added thereto, with room temperature
30min is stirred under normal pressure, is then filtered by vacuum and collects filtrate, obtains decoloration rapeseed oil.
Wherein, the color of rapeseed oil to be decolourized is opaque sepia, and the detection range that color value has exceeded instrument is (yellow
79.9, red 79.9, it is blue 49.9)；And the color transition for the rapeseed oil that decolourizes is transparent green, finished product color value (color and luster Lovibond
25.4mm slots) it is Huang 45, red 4, blue 1, the color value of enterprise's needs can be met.
Embodiment 2
Using the rice bran oil crude oil 5Kg that hot moulding is produced as vegetable oil to be decolourized, atlapulgite 150g and phosphorus are added thereto
Sour 5g (phosphoric acid promoted atlapulgite adsorbs coloring matter), stirs 5min under the conditions of vacuum, 260 DEG C, is then rapidly cooled to
70 DEG C, filtrate is refiltered and collected, obtains decoloration rice bran oil.
Wherein, the color value (133.4 slot of color and luster Lovibond) of rice bran oil to be decolourized is Huang 35, red 8；And the color for the rice bran oil that decolourizes
Value is Huang 35, red 3.5, and compared to rice bran oil to be decolourized, red color value is substantially reduced, and the color value for the rice bran oil that decolourizes meets enterprise
The color value that industry needs.
Embodiment 3
Using the corn oil crude oil 5Kg that hot moulding is produced as vegetable oil to be decolourized, activated carbon 25g is added thereto, in room temperature
Lower stirring 30min, is then filtered by vacuum and collects filtrate, obtains decoloration corn oil.
Wherein, the color of corn oil to be decolourized is opaque sepia, and the detection range that color value has exceeded instrument is (yellow
79.9, red 79.9, it is blue 49.9)；And the color transition for the corn oil that decolourizes is pellucidity, finished product color value (color and luster Lovibond
25.4mm slots) it is Huang 45, red 4, blue 1, the color value of enterprise's needs can be met).
Embodiment 4
Using the tea-seed oil crude oil 5Kg that hot moulding is produced as vegetable oil to be decolourized, activated carbon 25g is added thereto, in room temperature
Lower stirring 30min, is then filtered by vacuum and collects filtrate, obtains decoloration tea-seed oil.
Wherein, the color value of tea-seed oil to be decolourized is opaque sepia, and the detection range that color value has exceeded instrument is (yellow
79.9, red 79.9, it is blue 49.9)；And the color transition for the tea-seed oil that decolourizes is transparent state, finished product color value (color and luster Lovibond
25.4mm slots) color value is Huang 45, red 2, indigo plant 0, the color value of enterprise's needs can be met.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, for this field
For technical staff, the invention may be variously modified and varied.It is all in the spirit and principles in the present invention etc, made by it is any
Modification, equivalent replacement, improvement etc. should all be included within the scope of the present invention.
Claims (7)
1. the selective absorption discoloration method of a vegetable oil, which is characterized in that for the decolorization in vegetable oil refining, institute
The absorption decoloring method for stating vegetable oil includes the following steps：Add adsorbent into vegetable oil to be decolourized, heat and stir with into
Row selective absorption is decolourized, and filtrate is then filtered and collect, and obtains decoloration vegetable oil, wherein the vegetable oil to be decolourized is warp
The dark vegetable oil crude oil that hot moulding is produced.
2. the selective absorption discoloration method of vegetable oil as described in claim 1, which is characterized in that the quality of the adsorbent
It is the 0.5%~5% of the plant oil quality.
3. the selective absorption discoloration method of vegetable oil as described in claim 1, which is characterized in that the vegetable oil to be decolourized
For rapeseed oil, rice bran oil, peanut oil, sesame oil or tea-seed oil.
4. the selective absorption discoloration method of vegetable oil as claimed in claim 3, which is characterized in that the vegetable oil to be decolourized
After hot moulding, by the vegetable oil of filtering and degumming or depickling processing.
5. the selective absorption discoloration method of vegetable oil as described in claim 1, which is characterized in that the adsorbent includes living
Property charcoal, atlapulgite, attapulgite, zeolite molecular sieve and activation at least one of rice hull ash.
6. the selective absorption discoloration method of vegetable oil as described in claim 1, which is characterized in that the heating temperature is 20
~260 DEG C, the mixing time of the stirring is 5~40min.
7. the selective absorption discoloration method of vegetable oil as claimed in claim 6, which is characterized in that the heating temperature is 80
~260 DEG C；And
Adsorbent is added into vegetable oil to be decolourized, after being mixed at a temperature of 80~260 DEG C to carry out adsorption bleaching, rapidly
65~75 DEG C are cooled to, filtrate is then filtered and collect, obtains decoloration vegetable oil.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810627445.0A CN108795572A (en) | 2018-06-20 | 2018-06-20 | The selective absorption discoloration method of one vegetable oil |
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| CN201810627445.0A CN108795572A (en) | 2018-06-20 | 2018-06-20 | The selective absorption discoloration method of one vegetable oil |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682761A (en) * | 2018-12-19 | 2019-04-26 | 凯欣粮油有限公司 | A kind of detection method of atlapulgite to vegetable oil decoloration effect |
| CN110270320A (en) * | 2019-07-10 | 2019-09-24 | 王豫园 | The regeneration treating method of grease-decolor adsorbent filter cake |
| CN110951539A (en) * | 2019-11-19 | 2020-04-03 | 山东华胜检验检测技术有限公司 | Physical decolorizing method for vegetable oil |
| CN111748409A (en) * | 2020-07-24 | 2020-10-09 | 湖北葛店人福药用辅料有限责任公司 | Vegetable oil and refining method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682761A (en) * | 2018-12-19 | 2019-04-26 | 凯欣粮油有限公司 | A kind of detection method of atlapulgite to vegetable oil decoloration effect |
| CN110270320A (en) * | 2019-07-10 | 2019-09-24 | 王豫园 | The regeneration treating method of grease-decolor adsorbent filter cake |
| CN110951539A (en) * | 2019-11-19 | 2020-04-03 | 山东华胜检验检测技术有限公司 | Physical decolorizing method for vegetable oil |
| CN111748409A (en) * | 2020-07-24 | 2020-10-09 | 湖北葛店人福药用辅料有限责任公司 | Vegetable oil and refining method thereof |
| CN111748409B (en) * | 2020-07-24 | 2023-06-20 | 湖北葛店人福药用辅料有限责任公司 | Vegetable oil and refining method thereof |
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Application publication date: 20181113 |