CN107746745A - The method of low temperature preparation xylophyta base non-colour greasy - Google Patents
The method of low temperature preparation xylophyta base non-colour greasy Download PDFInfo
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- CN107746745A CN107746745A CN201710801423.7A CN201710801423A CN107746745A CN 107746745 A CN107746745 A CN 107746745A CN 201710801423 A CN201710801423 A CN 201710801423A CN 107746745 A CN107746745 A CN 107746745A
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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
Abstract
The invention belongs to the high-valued process technology of xylophyta grease and application field, specifically discloses a kind of method of low temperature preparation xylophyta base non-colour greasy.This method comprises the following steps：(1) aquation degumming；(2) alkali refining refines；(3) steam distillation；(4) adsorption bleaching；(5) low temperature growing the grain；(6) biological decolouring：(7) packed column decolourizes.Operation temperature section of the present invention is relatively low, gained non-colour greasy excellent quality, the defects of can effectively solve the problem that conventional method decolorizing effect difference present in xylophyta base oil fat decolorization or active component loss, its product colourity disclosure satisfy that the standard of medical treatment, cosmetics, fine chemistry industry and health products oil, and grease character is stable.The use range of xylophyta base oil fat is improved, improves the overall economic efficiency of such grease.
Description
Technical field
The invention belongs to the high-valued process technology of xylophyta grease and application field, and in particular to a kind of xylophyta base
The low temperature preparation method of non-colour greasy.
Background technology
As global economy develops rapidly, vegetable fat demand increasingly increases, woody oleiferous plants industry development direct relation
Implemented to grain and oil safety, ecological safety and mountain area self-employed tree cultivator national strategy policy of shaking off poverty and setting out on the road to prosperity, technical need is urgent, market potential
It is huge.The characteristic and superior resources of oil tea, tung oil tree and Shan Cangzishi Hunan Province, cultivated area, the stock number of the grey seed of oil tea and mountain
Ranked first in the country with the gross output value, tung oil tree area occupy the whole nation second, the large woody oleiferous plants cultivated area of our province up to 30,000,000 mu with
On, wherein oil tea area accounts for the whole nation 40%, and yield accounts for more than 50%.But on the whole, woody oleiferous plants resource still has utilization
Rate is low, commercialized degree is low, and technology and equipment falls behind, the problem that product is single and whole economic efficiency is poor.With the whole world
Economic integration accelerates, and external oil plant enters on a large scale, and woody oleiferous plants industry is aggravated with other vegetable fat market competitive pressures,
Existing industrial technology bottleneck is badly in need of breaking through.Non-colour greasy is a kind of eurytopicity raw material with high economic value, main application
In industries such as medicine, cosmetics, health products, Devoting Major Efforts To Developing xylophyta base non-colour greasy product is to improving woody oleiferous plants industry
Comprehensive benefit have important facilitation.
Non-colour greasy refers to remove pigment and other impurity in grease under certain condition, so as to reach the mesh of decolouring
, traditional absorption decoloring method is difficult xylophyta base oil fat is reached colourless.Existing non-colour greasy preparation method is such as：
ZL200610166616.1 discloses a kind of preparation method of non-colour greasy, but this method is entered using n-hexane (No. six solvents)
Row dilution, easily causes dissolvent residual in subsequent treatment, and high temperature removal solvent can also cause in grease active nutritional into
The loss divided；CN103706322A discloses a kind of preparation method of fat decolourizing agent, and food-grade grease can be met to color
Degree, the index request of impurity content, but certain gap also be present with high-quality field to application.
The exploitation of xylophyta base non-colour greasy is directed to both at home and abroad at present also in the starting stage, the present invention is mainly from low temperature
Visual angle is set out, and the active nutrient component of grease in itself is retained while coloring matter is removed, and improves the comprehensive warp of oil and fat product
Ji benefit.
The content of the invention
The technical problems to be solved by the invention are the deficiencies for existing method, there is provided one kind disclosure satisfy that xylophyta
The method of base oil fat low temperature preparation non-colour greasy, this method can fundamentally solve decolorizing effect difference or nutrient loss
The defects of, its product colourity disclosure satisfy that the standard of medical treatment, cosmetics, fine chemistry industry and health products oil, the change of non-colour greasy
Learn the indexs such as composition, activity and meet safety requirements.
In order to solve the above technical problems, the present invention uses following technical scheme：The low temperature preparation xylophyta base is colourless
The method of grease, this method comprise the following steps：
(1) aquation degumming:
Remove α type phosphatide：Xylophyta base oil fat is preheated to 50~85 DEG C, the hot NaCl for adding 2~10wt% is water-soluble
Liquid, insulation uniform speed slow stir 2~6h, stand 4~8h then at 40~85 DEG C of heat-retaining conditions, isolate A greases；
Remove β type phosphatide：Above-mentioned A greases are preheated to 50~85 DEG C, add 1~6wt% citric acid and phosphoric acid mixing
β types phospholipid conversion is hydrated phospholipid by solution, using NaOH aqueous solution back titration to pH=5；2~4h of insulated and stirred, is isolated
B greases；
(2) alkali refining refines：Above-mentioned B greases are preheated to 70~85 DEG C, add the NaOH water of 2~20 Baume degrees thereto
Solution, 40~120min is stirred, be incubated 3~6h of standing sedimentation, separated grease and use pure water 1~3 time, obtain C oil
Fat；
(3) steam distillation：Above-mentioned C greases are warming up to 100~110 DEG C, are passed through 2~8h of vapor in atmospheric conditions,
Room temperature is then down to, is incorporated as the gross porosity microsphere silica gel of C oil qualities 1~3%, 1~4h is stirred, filtering, obtains D greases；
(4) adsorption bleaching：Above-mentioned D greases are warming up to 100~120 DEG C, water removal 1 is stirred under the conditions of 90~100KPa of vacuum
~2h, treat that D grease temperature is down to 40~50 DEG C, add the oily adsorbent of weight 1.5~5.5%, under the conditions of 90~100KPa of vacuum,
Continue 60~150min of moderate-speed mixer, treat that D grease temperature is down to 40~50 DEG C, breaking vacuum, filter, obtain E greases；
(5) low temperature growing the grain：Above-mentioned E greases are cooled to 4~8 DEG C, quiet to put 6~12h of crystalline substance in a suitable place to breed, removing lower floor white precipitate is brilliant
Body, obtain F greases；
(6) biological decolouring：Above-mentioned F greases are preheated to 60~80 DEG C, add the citric acid and phosphorus of oily weight 0.5~1.5%
Acid solution, 30~60min is stirred, is cooled to 35~45 DEG C, adds the biology enzyme compound formulation of oily weight 2~15%, reaction 1~
3h；Reaction adds the deionized water of oily weight 5~10% after terminating, be warming up to 70~90 DEG C, centrifuges grease；Grease is existed
90~100KPa of vacuum, 20~80min is dehydrated under the conditions of 100~120 DEG C of temperature, obtains G greases；
(7) packed column decolourizes：The temperature for controlling above-mentioned G greases is 20~40 DEG C, is diluted using petroleum ether；Add stone
The amount of oily ether is 1~4 times of G grease volumes, homogeneous 20~50min under ultrasound condition, obtains grease petroleum ether mixtures；
Under the conditions of 20~40 DEG C, the grease petroleum ether mixtures are each led into macroporous absorbent resin and ion exchange
Resin column is decolourized, and it is 1.0~4.0mL/min to control mixture velocity, obtains mixed liquor；
By the mixed liquor under the conditions of 40~60 DEG C, 60~100KPa of vacuum, separation petroleum ether recycles, and obtains nothing
Color grease H, as finished product.
Wherein, the method for above-mentioned low temperature preparation xylophyta base non-colour greasy, xylophyta base oil fat described in step (1)
For tung oil, tea oil, wilson dogwood oil, threeleaf akebia, fruit of a cubeb litsea tree benevolence oil or Oleum Ligni Santali.
Wherein, the method for above-mentioned low temperature preparation xylophyta base non-colour greasy, citric acid and phosphoric acid mix described in step (1)
The volume proportion for closing solution is the ︰ 3 of 1 ︰ 1~1.
Wherein, the method for above-mentioned low temperature preparation xylophyta base non-colour greasy, the hot NaCl aqueous solution described in step (1)
Temperature is 60~90 DEG C.
Wherein, the method for above-mentioned low temperature preparation xylophyta base non-colour greasy, the NaOH aqueous solution is dense described in step (1)
Spend for 0.1~0.5mol/L.
Wherein, the method for above-mentioned low temperature preparation xylophyta base non-colour greasy, the temperature of pure water described in step (2) are 70
~90 DEG C.
Wherein, the method for above-mentioned low temperature preparation xylophyta base non-colour greasy, gross porosity microsphere silica gel described in step (3)
Aperture is 80~120um.
Wherein, the method for above-mentioned low temperature preparation xylophyta base non-colour greasy, adsorbent described in step (4) are white for activity
The mass ratio of native and active Carbon composites, atlapulgite and active Carbon composites is 55~75 ︰ 30~50.
Wherein, the method for above-mentioned low temperature preparation xylophyta base non-colour greasy, citric acid and phosphoric acid are molten described in step (6)
The mass fraction of liquid is 10~40%, and it is prepared according to the ︰ 1 of volume ratio 1 by citric acid solution phosphocarnic acid solution and obtained.
Wherein, the method for above-mentioned low temperature preparation xylophyta base non-colour greasy, biology enzyme compound formulation described in step (6)
For phospholipase A2 and the compound of phospholipase C, the mass ratio of phospholipase A2 and phospholipase C is 10~80 ︰ 35~90.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) present invention can effectively solve the problem that conventional method decolorizing effect present in xylophyta base oil fat decolorization
The defects of difference or active component are lost in, its product colourity disclosure satisfy that medical treatment, cosmetics, fine chemistry industry and health products oil
Standard, and grease character is stable.
(2) operation temperature section of the present invention is relatively low, gained non-colour greasy excellent quality, and involved auxiliary material price is low
Honest and clean, safety and environmental protection is easy to use, and addition is few.
(3) present invention improves the use range of xylophyta base oil fat, improves the overall economic efficiency of such grease,
Reduce the dependence to other edible oil and fat raw materials.
Brief description of the drawings
Fig. 1 is the process chart of low temperature preparation xylophyta base non-colour greasy method of the present invention.
Embodiment
The invention provides a kind of method of low temperature preparation xylophyta base non-colour greasy, this method comprises the following steps：
(1) aquation degumming:Lipides, such as phosphatide, carbohydrate, protein in crude oil be present, grease muddiness, smoke point drop can be made
It is low, while phosphatide is carbonized and deepens grease color and carry peculiar smell at high temperature, the phosphatide in grease is divided into two types, i.e. α
Type phosphatide and β type phosphatide；
A greases (removing α types phosphatide)：Xylophyta base oil fat is preheated to 50~85 DEG C, adds 2~10wt% heat
The NaCl aqueous solution, insulation uniform speed slow stir 2~6h, colloidal impurity is absorbed moisture and expand, in the effect phase of polar forces
Inter coagulation, so as to produce difference with grease proportion, 4~8h is stood then at 40~85 DEG C of heat-retaining conditions, isolates A greases；
B greases (removing β types phosphatide)：Above-mentioned A greases are preheated to 50~85 DEG C, add 1~6wt% citric acid and phosphorus
β types phospholipid conversion is hydrated phospholipid by sour mixed solution, using NaOH aqueous solution back titration to pH=5；2~4h of insulated and stirred,
B greases are isolated by centrifuge；
(2) alkali refining refines：Above-mentioned B greases are preheated to 70~85 DEG C, add the NaOH water of 2~20 Baume degrees thereto
Solution, 40~120min is stirred, be incubated 3~6h of standing sedimentation, separated grease and use pure water 1~3 time, obtain C oil
Fat；
(3) steam distillation：Above-mentioned C greases are warming up to 100~110 DEG C, are passed through 2~8h of vapor in atmospheric conditions,
Make residual pigment it is hydrothermal it is lower be swelled, and the volatile materials of fraction can be removed；Room temperature is then down to, is added
For the gross porosity microsphere silica gel of C oil qualities 1~3%, 1~4h is stirred, filtering, obtains D greases；
(4) adsorption bleaching：Above-mentioned D greases are warming up to 100~120 DEG C, water removal 1 is stirred under the conditions of 90~100KPa of vacuum
~2h, treat that D grease temperature is down to 40~50 DEG C, add the oily adsorbent of weight 1.5~5.5%, under the conditions of 90~100KPa of vacuum,
Continue 60~150min of moderate-speed mixer, treat that D grease temperature is down to 40~50 DEG C, breaking vacuum, filter, obtain E greases；It is described
Adsorbent is atlapulgite and active Carbon composites, and its mass ratio is 55~75 ︰ 30~50；
(5) low temperature growing the grain：Above-mentioned E greases are cooled to 4~8 DEG C, low temperature environment is quiet to put 6~12h of crystalline substance in a suitable place to breed, and removing lower floor is white
Color precipitating crystalline, obtain F greases；
(6) biological decolouring：Above-mentioned F greases are preheated to 60~80 DEG C, add the citric acid and phosphorus of oily weight 0.5~1.5%
Acid solution, 30~60min is stirred, is cooled to 35~45 DEG C, adds the biology enzyme compound formulation of oily weight 2~15%, reaction 1~
3h；Reaction adds the deionized water of oily weight 5~10% after terminating, be warming up to 70~90 DEG C, centrifuges grease；Grease is existed
90~100KPa of vacuum, 20~80min is dehydrated under the conditions of 100~120 DEG C of temperature, obtains G greases；The biology enzyme is compound
Preparation is the compound of phospholipase A2 and phospholipase C, and its mass ratio is 10~80 ︰ 35~90；
(7) packed column decolourizes：The temperature for controlling above-mentioned G greases is 20~40 DEG C, is diluted using petroleum ether；Add stone
The amount of oily ether is 1~4 times of G grease volumes, homogeneous 20~50min under ultrasound condition, obtains grease petroleum ether mixtures；
Under the conditions of 20~40 DEG C, the grease petroleum ether mixtures are each led into macroporous absorbent resin and ion exchange
Resin column is decolourized, and it is 1.0~4.0mL/min to control mixture velocity, obtains mixed liquor；
By the mixed liquor under the conditions of 40~60 DEG C, 60~100KPa of vacuum, separation petroleum ether recycles, and obtains nothing
Color grease H, as finished product.
Wherein, the method for above-mentioned low temperature preparation xylophyta base non-colour greasy, xylophyta base oil fat described in step (1)
For tung oil, tea oil, wilson dogwood oil, threeleaf akebia, fruit of a cubeb litsea tree benevolence oil or Oleum Ligni Santali.
Wherein, the method for above-mentioned low temperature preparation xylophyta base non-colour greasy, citric acid and phosphoric acid mix described in step (1)
The volume proportion for closing solution is the ︰ 3 of 1 ︰ 1~1.
Wherein, the method for above-mentioned low temperature preparation xylophyta base non-colour greasy, the hot NaCl aqueous solution described in step (1)
Temperature is 60~90 DEG C.
Wherein, the method for above-mentioned low temperature preparation xylophyta base non-colour greasy, the NaOH aqueous solution is dense described in step (1)
Spend for 0.1~0.5mol/L.
Wherein, the method for above-mentioned low temperature preparation xylophyta base non-colour greasy, the temperature of pure water described in step (2) are 70
~90 DEG C.
Wherein, the method for above-mentioned low temperature preparation xylophyta base non-colour greasy, gross porosity microsphere silica gel described in step (3)
Aperture is 80~120um.
Wherein, the method for above-mentioned low temperature preparation xylophyta base non-colour greasy, citric acid and phosphoric acid are molten described in step (6)
The mass fraction of liquid is 10~40%, and it is by citric acid solution phosphocarnic acid solution according to volume ratio 1:1 preparation obtains.
Wherein, the method for above-mentioned low temperature preparation xylophyta base non-colour greasy, macroporous absorbent resin employed in step (6)
Different strong acid or highly basic and anion or cation type can be used with ion exchange resin according to actual conditions.
Below in conjunction with specific embodiment, the present invention will be further explained, but and is not so limited the present invention
Protection domain.
The wilson dogwood oil of embodiment 1 prepares non-colour greasy
(1) 10Kg wilson dogwoods oil is weighed, 70 DEG C is preheated to, adds the 5wt% NaCl aqueous solution (90 DEG C), uniform speed slow
2h is stirred, 65 DEG C of insulations stand 4h, isolate A greases；A greases are preheated to 65 DEG C again, add 3wt% citric acid and phosphorus
(volume proportion of citric acid and phosphoric acid mixed solution is 1 to sour mixed solution:1), using 0.1mol/L NaOH aqueous solution residual titrations
Determine to pH=5, insulated and stirred 4h, B greases are isolated by centrifuge.
(2) B greases are preheated to 70 DEG C, the NaOH aqueous solution of 14 Baume degrees, stirring is added according to the acid number of feedstock oil
60min, standing sedimentation 3h is incubated, separates grease, 90 DEG C of pure waters 2 times, obtain C greases.
(3) C greases are warming up to 105 DEG C, vapor 4h is passed through under normal pressure, make residual pigment molten in hydrothermal lower generation
It is swollen, room temperature is down to, adds the oily gross porosity microsphere silica gel of weight 1.5% (aperture of gross porosity microsphere silica gel is 100um), stirs 2h, mistake
Filter, obtains D greases.
(4) D greases are warming up to 110 DEG C, 1h is removed water under the conditions of vacuum 95KPa, be down to 40 DEG C, add 2.5% adsorbent
(adsorbent is the ︰ 3 of mass ratio 7 atlapulgite and the compound of activated carbon), moderate-speed mixer 150min under 95KPa, is cooled to 50
DEG C breaking vacuum, suction filtration obtain E greases.
(5) E greases are cooled to 6 DEG C, low temperature environment is quiet to put brilliant 12h in a suitable place to breed, removing lower floor white precipitate crystal, obtains F oil
Fat.
(6) F greases are preheated to 80 DEG C, the mass fraction for adding oily weight 0.5% is 20% citric acid and phosphoric acid solution
(volume proportion of citric acid and phosphoric acid mixed solution is 1 ︰ 1)), 40min is stirred, 45 DEG C is cooled to, adds the life of oily weight 10%
Thing enzyme compound formulation (PLA2 and PLC mass ratioes are 1 ︰ 1), reacts 3h under the conditions of design temperature.10wt% is added after end
Deionized water, be warming up to 90 DEG C, centrifuge grease.Grease is dehydrated under the conditions of vacuum 95KPa, 120 DEG C of temperature
50min, obtain G greases.
(7) it is 30 DEG C G greases to be controlled into temperature, is diluted using petroleum ether.The amount for adding petroleum ether is grease volume
3 times, the homogeneous 30min under ultrasound condition.Under the conditions of 30 DEG C, dilution is obtained into grease petroleum ether mixtures and each led into
Nonpolarity macroporous adsorptive resins chromatographic column (ADS-5) and strong-base anion-exchange resin pillar (D296R) are decolourized, and are controlled
Flow velocity is 2.0ml/min.Mixed liquor will be obtained at 60 DEG C, under the conditions of vacuum 80KPa, separation petroleum ether recycles, and obtains nothing
Color grease H- wilson dogwood non-colour greasies, as finished product.
After testing, the acid number of wilson dogwood non-colour greasy is 0.11mgKOH/g, and wsl-2 lovibond tests meter measurement red is
0, yellow 0.
The Oleum Ligni Santali of embodiment 2 prepares non-colour greasy
(1) Asiatic sweet leaf crude oil 20Kg is weighed, (1)~(5) step is the same as embodiment 1.
(2) step 1 is prepared into grease and is preheated to 70 DEG C, add oily weight 1.0% mass fraction be 35% citric acid and
Phosphoric acid solution (citric acid and phosphoric acid solution volume ratio be 1 ︰ 1), 30min is stirred, 45 DEG C is cooled to, adds the biology of oily weight 8%
Enzyme compound formulation (PLA2 and PLC mass ratioes are 2 ︰ 1), reacts 2h under the conditions of design temperature.After end add 8% go from
Sub- water, 85 DEG C are warming up to, centrifuged, grease is dehydrated 30min under the conditions of 90KPa, 120 DEG C of temperature.
(3) it is 30 DEG C step 2 grease to be controlled into temperature, is diluted using petroleum ether.The amount for adding petroleum ether is grease
4 times of volume, the homogeneous 50min under ultrasound condition.Under the conditions of 35 DEG C, dilution is obtained into grease petroleum ether mixtures difference
It is passed through nonpolar macroporous adsorption resin (D101) and weak-base anion-exchange resin pillar (D392) is decolourized, controlling stream
Speed is 3.0ml/min.Mixed liquor will be obtained at 50 DEG C, under the conditions of vacuum 95KPa, separation petroleum ether recycles, and obtains colourless
Finished grease-Asiatic sweet leaf non-colour greasy.
After testing, the acid number of Asiatic sweet leaf non-colour greasy is 0.09mgKOH/g, and red wsl-2 lovibond tests meter measurement is 0,
Yellow is 0.
The fruit of a cubeb litsea tree benevolence oil of embodiment 3 prepares non-colour greasy
Fruit of a cubeb litsea tree benevolence oil 15Kg is weighed, concrete operation step is the same as embodiment 2.
After testing, the acid number that fruit of a cubeb litsea tree benevolence oil prepares non-colour greasy is 0.09mgKOH/g, and wsl-2 lovibond tests measure
Red amount is 0, yellow 0.
Described above is the preferred embodiments of the present invention, it is noted that for those skilled in the art, is not being taken off
On the premise of structure of the present invention, various modifications and improvements can be made, these should also be as the protection model for being considered as the present invention
Enclose, these are all without the practicality for influenceing the effect of the invention implemented and this patent.
Claims (10)
1. the method for low temperature preparation xylophyta base non-colour greasy, it is characterised in that this method comprises the following steps：
(1) aquation degumming:
Remove α type phosphatide：Xylophyta base oil fat is preheated to 50~85 DEG C, adds the 2~10wt% hot NaCl aqueous solution, is protected
Warm uniform speed slow stirs 2~6h, stands 4~8h then at 40~85 DEG C of heat-retaining conditions, isolates A greases；
Remove β type phosphatide：Above-mentioned A greases are preheated to 50~85 DEG C, add 1~6wt% citric acid and phosphoric acid mixed solution
It is hydrated phospholipid by β types phospholipid conversion, using NaOH aqueous solution back titration to pH=5；2~4h of insulated and stirred, isolate B oil
Fat；
(2) alkali refining refines：Above-mentioned B greases are preheated to 70~85 DEG C, add the NaOH aqueous solution of 2~20 Baume degrees thereto,
40~120min is stirred, is incubated 3~6h of standing sedimentation, grease is separated and uses pure water 1~3 time, obtains C greases；
(3) steam distillation：Above-mentioned C greases are warming up to 100~110 DEG C, are passed through 2~8h of vapor in atmospheric conditions, then
Room temperature is down to, is incorporated as the gross porosity microsphere silica gel of C oil qualities 1~3%, 1~4h is stirred, filtering, obtains D greases；
(4) adsorption bleaching：Above-mentioned D greases are warming up to 100~120 DEG C, stirring water removal 1 under the conditions of 90~100KPa of vacuum~
2h, treat that D grease temperature is down to 40~50 DEG C, add the oily adsorbent of weight 1.5~5.5%, under the conditions of 90~100KPa of vacuum, continue
60~150min of moderate-speed mixer, treat that D grease temperature is down to 40~50 DEG C, breaking vacuum, filter, obtain E greases；
(5) low temperature growing the grain：Above-mentioned E greases are cooled to 4~8 DEG C, quiet to put 6~12h of crystalline substance in a suitable place to breed, removing lower floor white precipitate crystal,
Obtain F greases；
(6) biological decolouring：Above-mentioned F greases are preheated to 60~80 DEG C, citric acid and the phosphoric acid for adding oily weight 0.5~1.5% are molten
Liquid, 30~60min is stirred, is cooled to 35~45 DEG C, add the biology enzyme compound formulation of oily weight 2~15%, react 1~3h；Instead
The deionized water of oily weight 5~10% is added after should terminating, is warming up to 70~90 DEG C, centrifuges grease；By grease in vacuum
90~100KPa, 20~80min is dehydrated under the conditions of 100~120 DEG C of temperature, obtains G greases；
(7) packed column decolourizes：The temperature for controlling above-mentioned G greases is 20~40 DEG C, is diluted using petroleum ether；Add petroleum ether
Amount be 1~4 times of G grease volumes, homogeneous 20~50min under ultrasound condition, obtain grease petroleum ether mixtures；
Under the conditions of 20~40 DEG C, the grease petroleum ether mixtures are each led into macroporous absorbent resin and ion exchange resin
Post is decolourized, and it is 1.0~4.0mL/min to control mixture velocity, obtains mixed liquor；
By the mixed liquor under the conditions of 40~60 DEG C, 60~100KPa of vacuum, separation petroleum ether recycles, and obtains colorless oil
Fat H, as finished product.
2. the method for low temperature preparation xylophyta base non-colour greasy according to claim 1, it is characterised in that in step (1)
The xylophyta base oil fat is tung oil, tea oil, wilson dogwood oil, threeleaf akebia, fruit of a cubeb litsea tree benevolence oil or Oleum Ligni Santali.
3. the method for low temperature preparation xylophyta base non-colour greasy according to claim 1, it is characterised in that in step (1)
The volume proportion of citric acid and the phosphoric acid mixed solution is the ︰ 3 of 1 ︰ 1~1.
4. the method for low temperature preparation xylophyta base non-colour greasy according to claim 1, it is characterised in that in step (1)
The temperature of the hot NaCl aqueous solution is 60~90 DEG C.
5. the method for low temperature preparation xylophyta base non-colour greasy according to claim 1, it is characterised in that in step (1)
The concentration of the NaOH aqueous solution is 0.1~0.5mol/L.
6. the method for low temperature preparation xylophyta base non-colour greasy according to claim 1, it is characterised in that in step (2)
The temperature of the pure water is 70~90 DEG C.
7. the method for low temperature preparation xylophyta base non-colour greasy according to claim 1, it is characterised in that in step (3)
The aperture of the gross porosity microsphere silica gel is 80~120um.
8. the method for low temperature preparation xylophyta base non-colour greasy according to claim 1, it is characterised in that in step (4)
The adsorbent is the atlapulgite and active Carbon composites that mass ratio is 55~75 ︰ 30~50.
9. the method for low temperature preparation xylophyta base non-colour greasy according to claim 1, it is characterised in that in step (6)
The mass fraction of the citric acid and phosphoric acid solution is 10~40%, and it is by citric acid solution phosphocarnic acid solution according to the ︰ of volume ratio 1
1 preparation obtains.
10. the method for low temperature preparation xylophyta base non-colour greasy according to claim 1, it is characterised in that in step (6)
The biology enzyme compound formulation is the compound of the phospholipase A2s of 10~80 ︰ of mass ratio 35~90 and phospholipase C.
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| Publication number | Priority date | Publication date | Assignee | Title |
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