CN106367202B - Shorten cotton seed oil and proposes the purposes of the method for time, the fractionation method of cottonseed oil and deep hydrogenation vegetable oil as crystallization-promoter - Google Patents
Shorten cotton seed oil and proposes the purposes of the method for time, the fractionation method of cottonseed oil and deep hydrogenation vegetable oil as crystallization-promoter Download PDFInfo
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Abstract
The present invention relates to by addition deep hydrogenation vegetable oil as crystallization-promoter to cottonseed oil point mention and shorten cotton seed oil mention the time method and deep hydrogenation vegetable oil in cotton seed oil mentions as the purposes of crystallization-promoter.The present invention during cotton seed oil mentions by adding deep hydrogenation vegetable oil as crystallization-promoter, the time is mentioned so as to shorten cotton seed oil, and it can obtain meeting in GB1537-2003 about the requirement of cottonseed liquid oil refrigeration test (i.e., oil sample is kept for clear 5.5 hours or more at 0 DEG C) cottonseed oil liquid oil, thus it has saved time and energy cost, and has improved the economic benefit of manufacturing enterprise.
Description
Technical field
The present invention relates to shorten cotton seed oil to mention the method for time, the fractionation method of cottonseed oil and deep hydrogenation vegetable oil
Purposes as crystallization-promoter.Specifically, the present invention relates to by the way that deep hydrogenation vegetable oil is added as crystallization-promoter come to cottonseed
Oil point mention, and that thus shortens cottonseed oil point mentions the time.
Background technique
Cotton is mainly grown in subtropical and tropical zones, the main place of production of the cotton in China include Xinjiang, Henan, Hebei,
Jiangsu, Hubei, Sichuan, Shandong, Hunan and Zhejiang etc. save.Cottonseed oil is the grease refined from cotton seeds (cottonseed), is
The byproduct of cotton planting industry.Cottonseed oil is important one of the edible oil in China, while being also one of the edible oil of countries in the world.
Since the large area of domestic cotton is planted, cottonseed yield very abundant.Also, oil content is 9wt%- in known cottonseed
25wt%, and the nearly 40wt% of cotton benevolence oil content obtained after cottonseed decladding.Fat needed by human rich in cottonseed oil
Acid, wherein linoleic content highest, up to the 44.0wt%-55.0wt% of cottonseed oil total amount.It is known that linoleic acid can drop
Cholesterol level in low blood of human body is conducive to protect human health.In addition, also containing 21.6wt%- in cottonseed oil
The palmitinic acid of 24.8wt%, the stearic acid of 1.9wt%-2.4wt%, the oleic acid of 18wt%-30.7wt% and 0-0.1wt%
Arachidic acid.Human body is about 98wt% to the digestibility of cottonseed oil.
But also contain more saturated fatty acid in cottonseed oil.Since saturated fatty acid fusing point and freezing point are higher, because
This will be precipitated at a temperature of slightly lower from cottonseed oil, so that cottonseed oil retrogradation or even solidification, cause cottonseed oil in application, fortune
Defeated and trade etc. is restricted.Therefore, it is necessary to produce cottonseed liquid oil and the solid with high added value by point mentioning
Grease, to expand the application range of cottonseed oil.According to the requirement in GB 1537-2003 about cottonseed liquid oil refrigeration test, liquid
Oil needs chilled 5.5 hours or more in 0 DEG C of refrigeration test are still transparent clarification.Therefore, how to obtain meeting among the above
The cottonseed liquid oil of state's national standard is always the research hotspot in this field.
It is mentioned currently, the fractionation technology of grease mainly has dry fractionation, solvent method point to mention with surfactant method point.And it is directed to
Cottonseed oil then mainly uses dry method crystallized abstract technique.Wherein, dry method crystallized abstract technique includes the following steps: first to make oil molten
Change completely to eliminate crystallization (that is, broken crystalline substance), is then crystallized by controlling cooling conditions, growing the grain, then filtered
To liquid oil and solid grease.
However, generally requiring longer crystallization and rearing crystal time in existing cottonseed oil dry fractionation technique.For example,
In classical Tirtiaux method fractionation technology, it is 36 hours or more that cotton seed oil, which proposes required crystallization and rearing crystal time,.It is thanking
That mentions stirs at low speed the cottonseed of progress by low temperature for will army etc. (Chinese oil, the 8th phase of volume 36, the 18-20 pages, 2011)
In oily dry fractionation technique, only growing the grain just needs 12-24h, and still containing higher in obtained point of extract oil of this method
The saturated fatty acid (for example, containing 21.42% palmitinic acid) of content.Meanwhile it being disclosed in Chinese patent application CN 1869182A
Dry fractionation technique in crystallize and rearing crystal time summation be 24-36h.
Due to traditional longer crystallization of dry fractionation process requirement and rearing crystal time so that be unfavorable for industry energy conservation and at
This control, therefore, it is necessary to further develop the dry fractionation technique that can shorten cotton seed oil and mention the time.
Summary of the invention
Point mention the time for shorten cottonseed oil, and ensure simultaneously point cottonseed liquid oil raised meet in national standard about
The requirement of liquid oil refrigeration test, the present inventor have made intensive studies cottonseed oil fractionation technology and fat crystals process, as a result
It finds for the first time:, can be effective as crystallization-promoter by the addition deep hydrogenation vegetable oil into cottonseed oil during cotton seed oil mentions
Ground shortens dividing for cottonseed oil and mentions the time, and can obtain the cottonseed met in national standard about liquid oil refrigeration test requirement simultaneously
Liquid oil, to solve the above subject, completes the present invention.
Therefore, one aspect of the present invention, which provides, shortens the method that cotton seed oil mentions the time, and this method comprises the following steps: to
Deep hydrogenation vegetable oil is added in cottonseed oil.
The present invention keeps liquid by the way that deep hydrogenation vegetable oil is added into cottonseed oil as crystallization-promoter in cottonseed oil
State carries out subsequent crystallization and growing the grain process, then obtains cottonseed liquid oil and solid oil by lock out operation (such as filtering)
Rouge.It is found by detection, it is transparent that 5.5 hours or more are freezed at 0 DEG C still by the cottonseed liquid oil that the method for the invention obtains
Clarification, meets the refrigeration test requirement in national standard about cottonseed liquid oil.
Crystallization-promoter as described herein is the extreme hydrogen for handling vegetable fat by refining, hydrogenation, ester exchange process
Change vegetable oil, or for the vegetable fat of refining is passed through the deep hydrogenation vegetable oil that hydrogenation treatment obtains.Wherein, as this hair
The iodine value of the deep hydrogenation vegetable oil of the bright crystallization-promoter is less than 5g I2/100g。
Another aspect of the present invention provides the fractionation method of cottonseed oil, and described method includes following steps:
(1) cottonseed oil is conveyed into crystallizing tank, deep hydrogenation vegetable oil is then added into crystallizing tank, it is mixed to obtain grease
Object is closed, rich mixture is heated to being completely melt；
(2) following first stage cooling is carried out to the rich mixture after fusing in step (1), with 0.2-70 DEG C/h
Cooling velocity, the mixture is cooled to 3-20 DEG C by stirring in 0.5-10 hours, obtains the first cooling mixture；With
Afterwards, following second stage cooling is carried out to the first cooling mixture, with 0.05-20 DEG C/h of cooling velocity, by the first cooling
Mixture is cooled to 0-10 DEG C by stirring in 0.5-10 hours, obtains the second cooling mixture；Then, start with the second cooling
Mixture carries out growing the grain；
(3) the second cooling mixture for completing crystallization is separated, thus obtains cottonseed liquid oil and cottonseed solid grease.
Another aspect of the invention provides deep hydrogenation vegetable oil in cotton seed oil mentions as the purposes of crystallization-promoter.
In addition, can be said by content described in following paragraph [1] to paragraph [48] to technical solution of the present invention
It is bright:
[1] a kind of method for shortening cotton seed oil and mentioning the time of, which is characterized in that described method includes following steps: to institute
State addition deep hydrogenation vegetable oil in cottonseed oil.
[2] method according to paragraph [1], which is characterized in that the cottonseed oil is by depickling and degumming process
The cottonseed oil of three-level and the above rank.
[3] method according to paragraph [1] or [2], which is characterized in that the deep hydrogenation vegetable oil is selected from: extremely
Oil with hydrogenated soybean, deep hydrogenation rapeseed oil, deep hydrogenation palm oil, deep hydrogenation corn oil, deep hydrogenation sunflower oil, extreme
Cotmar, deep hydrogenation palm-kernel oil, deep hydrogenation peanut oil, deep hydrogenation coconut oil, deep hydrogenation Canola oil or
Any mixture of the above-mentioned grease of person.
[4] method according to paragraph [3], which is characterized in that the deep hydrogenation vegetable oil is deep hydrogenation palm
Oil, deep hydrogenation rapeseed oil, deep hydrogenation soybean oil or their any mixture.
[5] method according to either segment in paragraph [1]-[4], which is characterized in that the deep hydrogenation plant being added
The amount of oil is the 0.05wt%-2wt% of cottonseed oil weight.
[6] method according to paragraph [5], which is characterized in that the amount for the deep hydrogenation vegetable oil being added is cottonseed
The 0.1wt%-0.5wt% of oily weight.
[7] method according to paragraph [6], which is characterized in that the amount for the deep hydrogenation vegetable oil being added is cottonseed
The 0.1wt%-0.3wt% of oily weight.
[8] method according to either segment in paragraph [1]-[7], which is characterized in that the deep hydrogenation vegetable oil
Iodine number is less than 5g I2/100g。
[9] method according to paragraph [8], which is characterized in that the iodine number of the deep hydrogenation vegetable oil is less than 3g
I2/100g。
[10] method according to paragraph [9], which is characterized in that the iodine number of the deep hydrogenation vegetable oil is less than 1g
I2/100g。
[11] method according to either segment in paragraph [1]-[8], which is characterized in that the deep hydrogenation vegetable oil
It is less than 5g I for iodine number2The deep hydrogenation rapeseed oil of/100g.
[12] method according to paragraph [1]-[8] either segment, which is characterized in that the deep hydrogenation vegetable oil is
Iodine number is less than 5g I2The deep hydrogenation palm oil of/100g.
[13] method according to either segment in paragraph [1]-[8], which is characterized in that the deep hydrogenation vegetable oil
It is less than 5g I for iodine number2The deep hydrogenation soybean oil of/100g.
[14] a kind of fractionation method of cottonseed oil of, which is characterized in that the method includes the following steps:
(1) cottonseed oil is conveyed into crystallizing tank, deep hydrogenation vegetable oil is then added into the crystallizing tank, obtains
To rich mixture, the rich mixture is heated to being completely melt；
(2) following first stage cooling is carried out to the rich mixture after fusing in step (1), with 0.2-70 DEG C/h
Cooling velocity, the mixture is cooled to 3-20 DEG C by stirring in 0.5-10 hours, obtains the first cooling mixture；With
Afterwards, following second stage cooling is carried out to the first cooling mixture, it, will be described with 0.05-20 DEG C/h of cooling velocity
First cooling mixture is cooled to 0-10 DEG C by stirring in 0.5-10 hours, obtains the second cooling mixture；Then, start with
The second cooling mixture carries out growing the grain；
(3) the second cooling mixture for completing crystallization is separated, thus obtains cottonseed liquid oil and cottonseed solid
Grease.
[15] method according to paragraph [14], which is characterized in that in the step (1), the cottonseed oil is warp
Cross the three-level of depickling and degumming process and the cottonseed oil of the above rank.
[16] method according to paragraph [14] or [15], which is characterized in that in the step (1), the extreme
Hydrogenated vegetable oil is selected from: deep hydrogenation soybean oil, deep hydrogenation rapeseed oil, deep hydrogenation palm oil, deep hydrogenation corn oil, pole
Spend hydrogenated sunflower oil, deep hydrogenation cottonseed oil, deep hydrogenation palm-kernel oil, deep hydrogenation peanut oil, deep hydrogenation coconut oil,
Any mixture of deep hydrogenation Canola oil or above-mentioned grease.
[17] method according to paragraph [16], which is characterized in that in the step (1), the deep hydrogenation is planted
Object oil is deep hydrogenation palm oil, deep hydrogenation rapeseed oil, deep hydrogenation soybean oil or their any mixture.
[18] method according to either segment in paragraph [14]-[17], which is characterized in that in the step (1),
The amount for the deep hydrogenation vegetable oil being added is the 0.05wt%-2wt% of cottonseed oil weight.
[19] method according to paragraph [18], which is characterized in that the amount for the deep hydrogenation vegetable oil being added is cotton
The 0.1wt%-0.5wt% of seed oil weight.
[20] method according to paragraph [19], which is characterized in that the amount for the deep hydrogenation vegetable oil being added is cotton
The 0.1wt%-0.3wt% of seed oil weight.
[21] method according to either segment in paragraph [14]-[20], which is characterized in that in the step (1),
The iodine number of the deep hydrogenation vegetable oil is less than 5g I2/100g。
[22] method according to paragraph [21], which is characterized in that the iodine number of the deep hydrogenation vegetable oil is less than 3g
I2/100g。
[23] method according to paragraph [22], which is characterized in that the iodine number of the deep hydrogenation vegetable oil is less than 1g
I2/100g。
[24] method according to either segment in paragraph [14]-[21], which is characterized in that in the step (1),
The deep hydrogenation vegetable oil is that iodine number is less than 5g I2The deep hydrogenation rapeseed oil of/100g.
[25] method according to either segment in paragraph [14]-[21], which is characterized in that in the step (1),
The deep hydrogenation vegetable oil is that iodine number is less than 5g I2The deep hydrogenation palm oil of/100g.
[26] method according to either segment in paragraph [14]-[21], which is characterized in that in the step (1),
The deep hydrogenation vegetable oil is that iodine number is less than 5g I2The deep hydrogenation soybean oil of/100g.
[27] method according to either segment in paragraph [14]-[26], which is characterized in that in the step (1),
The rich mixture is heated to 40-80 DEG C.
[28] method according to either segment in paragraph [14]-[27], which is characterized in that in the step (2),
In first stage cooling, the mixture is stirred with 5-50 revs/min of speed.
[29] method according to either segment in paragraph [14]-[28], which is characterized in that in the step (2),
In the cooling of the second stage, the first cooling mixture is stirred with 5-50 revs/min of speed.
[30] method according to either segment in paragraph [14]-[29], which is characterized in that in the step (2),
The duration of the growing the grain is 2-12 hours.
[31] method according to either segment in paragraph [14]-[30], which is characterized in that in the step (2),
The growing the grain is accompanied by the stirring carried out with 5-50 revs/min of mixing speed.
[32] method according to either segment in paragraph [14]-[31], which is characterized in that in the step (2),
The first stage cooling is carried out with 0.5-5 DEG C/h of cooling velocity.
[33] method according to either segment in paragraph [14]-[32], which is characterized in that in the step (2),
The second stage cooling is carried out with 0.05-2 DEG C/h, with 0.1-2 DEG C/h of cooling velocity.
[34] method according to either segment in paragraph [14]-[33], which is characterized in that in the step (3),
The the second cooling mixture for completing crystallization is separated using diaphragm filter press.
[35] method according to paragraph [34], which is characterized in that the operating pressure of the diaphragm filter press is
0.01-2MPa。
[36] deep hydrogenation vegetable oil is in cotton seed oil mentions as the purposes of crystallization-promoter.
[37] purposes according to paragraph [36], which is characterized in that the cottonseed oil is by depickling and degumming process
Three-level and the above rank cottonseed oil.
[38] purposes according to paragraph [36] or [37], which is characterized in that the deep hydrogenation vegetable oil being added
Amount is the 0.05wt%-2wt%. of the cottonseed oil weight
[39] purposes according to paragraph [38], which is characterized in that the amount for the deep hydrogenation vegetable oil being added is institute
State the 0.1wt%-0.5wt% of cottonseed oil weight.
[40] purposes according to paragraph [39], which is characterized in that the amount for the deep hydrogenation vegetable oil being added is institute
State the 0.1wt%-0.3wt% of cottonseed oil weight.
[41] purposes according to either segment in paragraph [36]-[40], which is characterized in that the deep hydrogenation plant
Oil is selected from: deep hydrogenation soybean oil, deep hydrogenation rapeseed oil, deep hydrogenation palm oil, deep hydrogenation corn oil, deep hydrogenation certain herbaceous plants with big flowers
Flower seed oil, deep hydrogenation cottonseed oil, deep hydrogenation palm-kernel oil, deep hydrogenation peanut oil, deep hydrogenation coconut oil, deep hydrogenation
Any mixture of Canola oil or above-mentioned grease.
[42] purposes according to paragraph [41], which is characterized in that the deep hydrogenation vegetable oil is deep hydrogenation palm fibre
Palmitic acid oil, deep hydrogenation rapeseed oil, deep hydrogenation soybean oil or their any mixture.
[43] purposes according to either segment in paragraph [36]-[42], which is characterized in that the deep hydrogenation plant
The iodine number of oil is less than 5g I2/100g。
[44] purposes according to paragraph [43], which is characterized in that the iodine number of the deep hydrogenation vegetable oil is less than 3g
I2/100g、
[45] purposes according to paragraph [44], which is characterized in that the iodine number of the deep hydrogenation vegetable oil is less than 1g
I2/100g。
[46] purposes according to either segment in paragraph [36]-[43], which is characterized in that the deep hydrogenation plant
Oil is that iodine number is less than 5g I2The deep hydrogenation rapeseed oil of/100g.
[47] purposes according to either segment in paragraph [36]-[43], which is characterized in that the deep hydrogenation plant
Oil is that iodine number is less than 5g I2The deep hydrogenation palm oil of/100g.
[48] purposes according to either segment in paragraph [36]-[43], which is characterized in that the deep hydrogenation plant
Oil is that iodine number is less than 5g I2The deep hydrogenation soybean oil of/100g.
Compared with the traditional fractionation method for not adding crystallization-promoter, fractionation method of the present invention is real by addition crystallization-promoter
Following beneficial technical effect is showed: having been wanted guaranteeing that obtained cottonseed liquid oil meets in national standard about liquid oil refrigeration test
It while asking, is effectively shortened and mentions the time dividing for cottonseed oil, to reduce the energy needed for unit product, and improve production effect
Rate, to help to improve the economic benefit of manufacturing enterprise.
Specific embodiment
In addition in the embodiment of the present invention or place indicated otherwise, component or response parameter etc. used herein of being expressed as
Numerical value all should be understood that modified by term " about " in all cases.
In the present invention, term " refrigeration test ", which refers to be placed in oil sample under 0 DEG C of constant temperature, keeps certain
Time observes its clarity.
In the present invention, term " iodine number " refer to 100g grease occur addition reaction needed for iodine grams, iodine number is higher,
The degree of unsaturation of grease is bigger.
In the present invention, term " crystallization-promoter " refers to is handled by vegetable fat is refined, hydrogenation, ester exchange process
The deep hydrogenation vegetable oil arrived, or the deep hydrogenation vegetable oil by obtaining the hydrogenated processing of the vegetable fat of refining.Institute
It states vegetable fat and is selected from soybean oil, rapeseed oil, palm oil, corn oil, sunflower oil, cottonseed oil, palm-kernel oil, peanut oil, coconut palm
Any mixture of seed oil, Canola oil or above-mentioned grease.The vegetable fat of the refining is to carry out above-mentioned vegetable fat
The product obtained after refining.
In the present invention, unless otherwise indicated, term " deep hydrogenation vegetable oil " refers to vegetable oil through hydrogenation treatment
Unsaturated fatty acid in rouge becomes saturated fatty acid, and the iodine value obtained from is less than 5g I2The vegetable fat of/100g.
In the present invention, unless otherwise indicated, cottonseed oil preferably passes through the three-level of depickling and degumming process and with higher level
Other cottonseed oil.Wherein, the cottonseed oil of three-level and the above rank includes three-level cottonseed oil, second level cottonseed oil and level-one cottonseed
Oil.
In an embodiment of the invention, the present invention provides the method that shortening cotton seed oil mentions the time, this method
Include the following steps: that deep hydrogenation vegetable oil is added into cottonseed oil.
In a preferred embodiment of the present invention, used cottonseed oil is the three-level by depickling and degumming process
And the cottonseed oil of the above rank.
In another preferred embodiment of the invention, the deep hydrogenation vegetable oil is selected from: deep hydrogenation soybean oil, pole
Spend hydrogenated rapeseed oil, deep hydrogenation palm oil, deep hydrogenation corn oil, deep hydrogenation sunflower oil, deep hydrogenation cottonseed oil, pole
Spend hydrogenated palm kernel oil, deep hydrogenation peanut oil, deep hydrogenation coconut oil, deep hydrogenation Canola oil or above-mentioned grease
Any mixture.In further preferred embodiment of the present invention, the deep hydrogenation vegetable oil be deep hydrogenation palm oil,
Deep hydrogenation rapeseed oil, deep hydrogenation soybean oil or their any mixture.
In the present invention, the amount for the deep hydrogenation vegetable oil being added into cottonseed oil can be the 0.05wt% of cottonseed oil weight
More than.In a preferred embodiment of the invention, only for realizing higher benefit cost ratio, the pole being added in opposite cottonseed oil
The amount of degree hydrogenated vegetable oil is defined, it will be appreciated by persons skilled in the art that except the pole of the invention illustratively provided
It spends other than the additional amount of hydrogenated vegetable oil, the deep hydrogenation vegetable oil of other additional amounts still is able to achieve the object of the present invention,
The benefit cost ratio of cottonseed oil fractionation method of the present invention is only reduced to a certain extent.At of the invention one
In preferred embodiment, the amount of the deep hydrogenation vegetable oil being added is the 0.05wt%-2wt%, preferably of cottonseed oil weight
0.1wt%-0.5wt%, more preferable 0.1-0.3wt%.
In another preferred embodiment of the invention, the iodine number of the deep hydrogenation vegetable oil is less than 5g I2/100g、
Preferably smaller than 3g I2/ 100g, more preferably less than 1g I2/100g。
In another preferred embodiment of the invention, deep hydrogenation rapeseed oil is added into cottonseed oil.Wherein, the pole
Degree hydrogenated rapeseed oil is the product that rapeseed oil is handled by refining, hydrogenation, ester exchange process, or is passed through for refined rapeseed oil
The product that over hydrogenation is handled.It is preferred that the iodine number of deep hydrogenation rapeseed oil is less than 5g I2/100g。
In another preferred embodiment of the invention, deep hydrogenation palm oil is added into cottonseed oil.Wherein, the pole
Degree hydrogenated palm oil is the product that palm oil is handled by refining, hydrogenation, ester exchange process, or is passed through for refined palm oil
The product that over hydrogenation is handled.It is preferred that the iodine number of deep hydrogenation palm oil is less than 5g I2/100g。
In another preferred embodiment of the invention, deep hydrogenation soybean oil is added into cottonseed oil.Wherein, the pole
Degree oil with hydrogenated soybean is the product that soybean oil is handled by refining, hydrogenation, ester exchange process, or is passed through for purified soyabean oil
The product that over hydrogenation is handled.It is preferred that the iodine number of deep hydrogenation soybean oil is less than 5g I2/100g。
In another embodiment of the present invention, the present invention provides the fractionation method of cottonseed oil, the method includes such as
Lower step:
(1) cottonseed oil is conveyed into crystallizing tank, deep hydrogenation vegetable oil is then added into crystallizing tank, it is mixed to obtain grease
Object is closed, rich mixture is heated to being completely melt；
(2) following first stage cooling is carried out to the rich mixture after fusing in step (1), with 0.2-70 DEG C/h
Cooling velocity, the mixture is cooled to 3-20 DEG C by stirring in 0.5-10 hours, obtains the first cooling mixture；With
Afterwards, following second stage cooling is carried out to the first cooling mixture, with 0.05-20 DEG C/h of cooling velocity, by the first cooling
Mixture is cooled to 0-10 DEG C by stirring in 0.5-10 hours, obtains the second cooling mixture；Then, start with the second cooling
Mixture carries out growing the grain；
(3) the second cooling mixture for completing crystallization is separated, thus obtains cottonseed liquid oil and cottonseed solid grease.
In a preferred embodiment of the present invention, in above-mentioned steps (1), cottonseed oil be by depickling and degumming at
The cottonseed oil of the three-level of reason and the above rank.
In a preferred embodiment of the present invention, in above-mentioned steps (1), deep hydrogenation vegetable oil is selected from: extremely
Oil with hydrogenated soybean, deep hydrogenation rapeseed oil, deep hydrogenation palm oil, deep hydrogenation corn oil, deep hydrogenation sunflower oil, extreme
Cotmar, deep hydrogenation palm-kernel oil, deep hydrogenation peanut oil, deep hydrogenation coconut oil, deep hydrogenation Canola oil or
Any mixture of the above-mentioned grease of person.In further preferred embodiment, deep hydrogenation vegetable oil is deep hydrogenation palm
Oil, deep hydrogenation rapeseed oil, deep hydrogenation soybean oil or their any mixture.
In a preferred embodiment of the present invention, in above-mentioned steps (1), the deep hydrogenation vegetable oil that is added
Amount is 0.05wt%-2wt%, preferably 0.1wt%-0.5wt%, the more preferable 0.1wt%-0.3wt% of cottonseed oil weight.
In a preferred embodiment of the present invention, in above-mentioned steps (1), the iodine number of deep hydrogenation vegetable oil is less than
5g I2/ 100g, preferably smaller than 3g I2/ 100g, more preferably less than 1g I2/100g。
In a preferred embodiment of the present invention, in above-mentioned steps (1), deep hydrogenation vegetable oil is less than for iodine number
5g I2The deep hydrogenation rapeseed oil of/100g.In another preferred embodiment of the invention, in above-mentioned steps (1), extremely
Hydrogenated vegetable oil is that iodine number is less than 5g I2The deep hydrogenation palm oil of/100g.In another preferred embodiment of the invention,
In above-mentioned steps (1), deep hydrogenation vegetable oil is that iodine number is less than 5g I2The deep hydrogenation soybean oil of/100g.
In further preferred embodiment of the present invention, deep hydrogenation vegetable oil is that iodine number is less than 5gI2The pole of/100g
Spend hydrogenated rapeseed oil, iodine number is less than 5g I2The deep hydrogenation palm oil or iodine number of/100g is less than 5g I2The deep hydrogenation of/100g
Any mixture of soybean oil.
In a preferred embodiment of the present invention, in above-mentioned steps (1), by rich mixture be heated to 40 DEG C-
80℃。
In a preferred embodiment of the present invention, in above-mentioned steps (2), in the first stage in cooling, with 5-50
Rev/min speed the mixture is stirred.In another preferred embodiment of the invention, in above-mentioned steps (2)
In, in the cooling of second stage, the first cooling mixture is stirred with 5-50 revs/min of speed.In this hair
In bright further preferred embodiment, in above-mentioned steps (2), the duration of growing the grain is 2-12 hours.The present invention into
In one step preferred embodiment, in above-mentioned steps (2), growing the grain is accompanied by the stirring carried out with 5-50 revs/min of speed.
In further preferred embodiment of the present invention, in above-mentioned steps (2), first stage cooling is cold with 0.5-5 DEG C/h
But speed carries out.In present invention embodiment still more preferably, in above-mentioned steps (2), second stage cooling with
0.05-2 DEG C/h, preferably carried out with 0.1-2 DEG C/h of cooling velocity.
In a preferred embodiment of the present invention, in above-mentioned steps (3), completion is crystallized using diaphragm filter press
Second cooling mixture separated.In further preferred embodiment of the present invention, the operating pressure of diaphragm filter press
For 0.01-2MPa.
In another embodiment of the invention, the present invention provides the conducts in cotton seed oil mentions of deep hydrogenation vegetable oil
The purposes of crystallization-promoter.
In a preferred embodiment of the present invention, cottonseed oil is for the three-level by depickling and degumming process and with higher level
Other cottonseed oil.
In a preferred embodiment of the present invention, the amount for the deep hydrogenation vegetable oil being added is cottonseed oil weight
0.05wt%-2wt%, preferably 0.1wt%-0.5wt%, more preferable 0.1wt%-0.3wt%.
In a preferred embodiment of the present invention, deep hydrogenation vegetable oil is selected from: deep hydrogenation soybean oil, extreme hydrogen
Change rapeseed oil, deep hydrogenation palm oil, deep hydrogenation corn oil, deep hydrogenation sunflower oil, deep hydrogenation cottonseed oil, extreme hydrogen
Change any of palm-kernel oil, deep hydrogenation peanut oil, deep hydrogenation coconut oil, deep hydrogenation Canola oil or above-mentioned grease
Mixture.In further preferred embodiment of the present invention, deep hydrogenation vegetable oil is deep hydrogenation palm oil, deep hydrogenation
Rapeseed oil, deep hydrogenation soybean oil or their any mixture.
In an embodiment of the invention, the iodine number of deep hydrogenation vegetable oil is less than 5g I2/ 100g, it is preferably smaller than
3g I2/ 100g, more preferably less than 1g I2/100g。
In an embodiment of the invention, deep hydrogenation vegetable oil is that iodine number is less than 5g I2The deep hydrogenation of/100g
Rapeseed oil.In another embodiment of the present invention, deep hydrogenation vegetable oil is that iodine number is less than 5g I2The deep hydrogenation of/100g
Palm oil.In another embodiment of the invention, deep hydrogenation vegetable oil is that iodine number is less than 5g I2The deep hydrogenation of/100g
Soybean oil.
The high cottonseed liquid oil of the cottonseed oil of iodine number score in advance and iodine number can be obtained in the fractionation method through the invention
The low cottonseed solid grease of the cottonseed oil that score shifts to an earlier date.Cottonseed liquid oil obtained freezes 5.5 hours or more at 0 DEG C is still
Bright clarification meets the refrigeration test requirement in national standard about cottonseed liquid oil.Meanwhile it being mentioned with the tradition of unused crystallization-promoter point
Method is compared, and fractionation method of the present invention can effectively shorten cotton seed oil and mention the time, to be conducive to improve production
The economic benefit of enterprise.
The contents of the present invention will be described in more details based on following embodiment.But those skilled in the art can
Understand, protection scope of the present invention is not limited to embodiments illustrated below.
Embodiment
Embodiment 1
Cottonseed oil point mention using following techniques.
Step 1: using cottonseed oil as feedstock transportation into crystallizing tank, and deep hydrogenation palm oil being added into the crystallizing tank
As crystallization-promoter, obtains rich mixture and be heated to 80 DEG C, be completely melt the rich mixture, wherein to be added
The amount of deep hydrogenation palm oil is the 0.1wt% of cottonseed oil weight, and the iodine number of the deep hydrogenation palm oil is 1.0g I2/
100g；
Step 2: following first stage cooling being carried out to the rich mixture after melting in step 1, with 1.13 DEG C/minute
The cooling velocity of clock, and the mixture is stirred 1 hour with 30 revs/min of mixing speed, so that the mixture is cooled to 12
DEG C, obtain the first cooling mixture；Then, following second stage cooling is carried out to the first cooling mixture, with 0.058
DEG C/min cooling velocity, by the first cooling mixture by 2 hours stirring (mixing speed be 30 revs/min) drops
Temperature obtains the second cooling mixture to 5 DEG C；Then, start to carry out growing the grain with the second cooling mixture, the growing the grain is held
The continuous time is 12 hours, during growing the grain, is stirred with 30 revs/min of speed；
Step 3: use diaphragm filter press, under the operating pressure of 0.5MPa to complete crystallization second cooling mixture into
Row separation, obtains cottonseed solid oil fraction and cottonseed liquid oil part.
Refrigeration test detection is carried out according to the regulation in GB 1537-2003 to the cottonseed liquid oil that the present embodiment obtains: will be obtained
The cottonseed liquid oil obtained is put into 0 DEG C of water-bath and keeps standing, and observes its time for keeping clear state.
The cottonseed oil fractionation method described in embodiment 1 uses deep hydrogenation palm oil as crystallization-promoter, and crystallizes, growing the grain
Time is only 15 hours in total, and obtained cottonseed liquid oil can be kept 7 hours of clear state at 0 DEG C.
Embodiment 2
Cottonseed oil point mention using following techniques.
Step 1: using cottonseed oil as feedstock transportation into crystallizing tank, and deep hydrogenation palm oil being added into the crystallizing tank
As crystallization-promoter, obtains rich mixture and be heated to 80 DEG C, be completely melt the rich mixture, wherein to be added
The amount of deep hydrogenation palm oil is the 0.05wt% of cottonseed oil weight, and the iodine number of the deep hydrogenation palm oil is 1.0g I2/
100g；
Step 2: following first stage cooling being carried out to the rich mixture after melting in step 1, with 1.13 DEG C/minute
The cooling velocity of clock, and the mixture is stirred 1 hour with 30 revs/min of mixing speed, so that the mixture is cooled to 12
DEG C, obtain the first cooling mixture；Then, following second stage cooling is carried out to the first cooling mixture, with 0.058
DEG C/min cooling velocity, by the first cooling mixture by 2 hours stirring (mixing speed be 30 revs/min) drops
Temperature obtains the second cooling mixture to 5 DEG C；Then, start to carry out growing the grain with the second cooling mixture, the growing the grain is held
The continuous time is 12 hours, during growing the grain, is stirred with 30 revs/min of speed；
Step 3: use diaphragm filter press, under the operating pressure of 0.5MPa to complete crystallization second cooling mixture into
Row separation, obtains cottonseed solid oil fraction and cottonseed liquid oil part.
Refrigeration test detection is carried out to the cottonseed liquid oil that the present embodiment obtains, used detection method is the same as embodiment 1.
The cottonseed oil fractionation method as described in example 2 uses deep hydrogenation palm oil as crystallization-promoter, and crystallizes, growing the grain
Time is only 15 hours in total, and obtained cottonseed liquid oil can be kept 6 hours of clear state at 0 DEG C.
Embodiment 3
Cottonseed oil point mention using following techniques.
Step 1: using cottonseed oil as feedstock transportation into crystallizing tank, and deep hydrogenation palm oil being added into the crystallizing tank
As crystallization-promoter, obtains rich mixture and be heated to 80 DEG C, be completely melt the rich mixture, wherein to be added
The amount of deep hydrogenation palm oil is the 0.2wt% of cottonseed oil weight, and the iodine number of the deep hydrogenation palm oil is 1.0g I2/
100g；
Step 2: following first stage cooling being carried out to the rich mixture after melting in step 1, with 1.13 DEG C/minute
The cooling velocity of clock, and the mixture is stirred 1 hour with 30 revs/min of mixing speed, so that the mixture is cooled to 12
DEG C, obtain the first cooling mixture；Then, following second stage cooling is carried out to the first cooling mixture, with 0.058
DEG C/min cooling velocity, by the first cooling mixture by 2 hours stirring (mixing speed be 30 revs/min) drops
Temperature obtains the second cooling mixture to 5 DEG C；Then, start to carry out growing the grain with the second cooling mixture, the growing the grain is held
The continuous time is 12 hours, during growing the grain, is stirred with 30 revs/min of speed；
Step 3: use diaphragm filter press, under the operating pressure of 0.5MPa to complete crystallization second cooling mixture into
Row separation, obtains cottonseed solid oil fraction and cottonseed liquid oil part.
Refrigeration test detection is carried out to the cottonseed liquid oil that the present embodiment obtains, used detection method is the same as embodiment 1.
The cottonseed oil fractionation method described in embodiment 3 uses deep hydrogenation palm oil as crystallization-promoter, and crystallizes, growing the grain
Time is only 15 hours in total, and obtained cottonseed liquid oil can be kept 9 hours of clear state at 0 DEG C.
Embodiment 4
Cottonseed oil point mention using following techniques.
Step 1: using cottonseed oil as feedstock transportation into crystallizing tank, and deep hydrogenation rapeseed oil being added into the crystallizing tank
As crystallization-promoter, obtains rich mixture and be heated to 80 DEG C, be completely melt the rich mixture, wherein to be added
The amount of deep hydrogenation rapeseed oil is the 0.1wt% of cottonseed oil weight, and the iodine number of the deep hydrogenation rapeseed oil is 0.8g I2/
100g；
Step 2: following first stage cooling being carried out to the rich mixture after melting in step 1, with 1.13 DEG C/minute
The cooling velocity of clock, and the mixture is stirred 1 hour with 30 revs/min of mixing speed, so that the mixture is cooled to 12
DEG C, obtain the first cooling mixture；Then, following second stage cooling is carried out to the first cooling mixture, with 0.058
DEG C/min cooling velocity, by the first cooling mixture by 2 hours stirring (mixing speed be 30 revs/min) drops
Temperature obtains the second cooling mixture to 5 DEG C；Then, start to carry out growing the grain with the second cooling mixture, the growing the grain is held
The continuous time is 12 hours, during growing the grain, is stirred with 30 revs/min of speed；
Step 3: use diaphragm filter press, under the operating pressure of 0.5MPa to complete crystallization second cooling mixture into
Row separation, obtains cottonseed solid oil fraction and cottonseed liquid oil part.
Refrigeration test detection is carried out to the cottonseed liquid oil that the present embodiment obtains, used detection method is the same as embodiment 1.
The cottonseed oil fractionation method as described in example 4 uses deep hydrogenation rapeseed oil as crystallization-promoter, and crystallizes, growing the grain
Time is only 15 hours in total, and obtained cottonseed liquid oil can be kept 8 hours of clear state at 0 DEG C.
Embodiment 5
Cottonseed oil point mention using following techniques.
Step 1: using cottonseed oil as feedstock transportation into crystallizing tank, and deep hydrogenation rapeseed oil being added into the crystallizing tank
As crystallization-promoter, obtains rich mixture and be heated to 80 DEG C, be completely melt the rich mixture, wherein to be added
The amount of deep hydrogenation rapeseed oil is the 0.05wt% of cottonseed oil weight, and the iodine number of the deep hydrogenation rapeseed oil is 0.8g I2/
100g；
Step 2: following first stage cooling being carried out to the rich mixture after melting in step 1, with 1.13 DEG C/minute
The cooling velocity of clock, and the mixture is stirred 1 hour with 30 revs/min of mixing speed, so that the mixture is cooled to 12
DEG C, obtain the first cooling mixture；Then, following second stage cooling is carried out to the first cooling mixture, with 0.058
DEG C/min cooling velocity, by the first cooling mixture by 2 hours stirring (mixing speed be 30 revs/min) drops
Temperature obtains the second cooling mixture to 5 DEG C；Then, start to carry out growing the grain with the second cooling mixture, the growing the grain is held
The continuous time is 12 hours, during growing the grain, is stirred with 30 revs/min of speed；
Step 3: use diaphragm filter press, under the operating pressure of 0.5MPa to complete crystallization second cooling mixture into
Row separation, obtains cottonseed solid oil fraction and cottonseed liquid oil part.
Refrigeration test detection is carried out to the cottonseed liquid oil that the present embodiment obtains, used detection method is the same as embodiment 1.
Cottonseed oil fractionation method described in the embodiment 5 uses deep hydrogenation rapeseed oil as crystallization-promoter, and crystallizes, growing the grain
Time is only 15 hours in total, and obtained cottonseed liquid oil can be kept 7 hours of clear state at 0 DEG C.
Embodiment 6
Cottonseed oil point mention using following techniques.
Step 1: using cottonseed oil as feedstock transportation into crystallizing tank, and deep hydrogenation rapeseed oil being added into the crystallizing tank
As crystallization-promoter, obtains rich mixture and be heated to 80 DEG C, be completely melt the rich mixture, wherein to be added
The amount of deep hydrogenation rapeseed oil is the 0.2wt% of cottonseed oil weight, and the iodine number of the deep hydrogenation rapeseed oil is 0.8g I2/
100g；
Step 2: following first stage cooling being carried out to the rich mixture after melting in step 1, with 1.13 DEG C/minute
The cooling velocity of clock, and the mixture is stirred 1 hour with 30 revs/min of mixing speed, so that the mixture is cooled to 12
DEG C, obtain the first cooling mixture；Then, following second stage cooling is carried out to the first cooling mixture, with 0.058
DEG C/min cooling velocity, by the first cooling mixture by 2 hours stirring (mixing speed be 30 revs/min) drops
Temperature obtains the second cooling mixture to 5 DEG C；Then, start to carry out growing the grain with the second cooling mixture, the growing the grain is held
The continuous time is 12 hours, during growing the grain, is stirred with 30 revs/min of speed；
Step 3: use diaphragm filter press, under the operating pressure of 0.5MPa to complete crystallization second cooling mixture into
Row separation, obtains cottonseed solid oil fraction and cottonseed liquid oil part.
Refrigeration test detection is carried out to the cottonseed liquid oil that the present embodiment obtains, used detection method is the same as embodiment 1.
Cottonseed oil fractionation method described in the embodiment 6 uses deep hydrogenation rapeseed oil as crystallization-promoter, and crystallizes, growing the grain
Time is only 15 hours in total, and obtained cottonseed liquid oil can be kept 10 hours of clear state at 0 DEG C.
Embodiment 7
Cottonseed oil point mention using following techniques.
Step 1: using cottonseed oil as feedstock transportation into crystallizing tank, and deep hydrogenation soybean oil being added into the crystallizing tank
As crystallization-promoter, obtains rich mixture and be heated to 80 DEG C, be completely melt the rich mixture, wherein to be added
The amount of deep hydrogenation soybean oil is the 0.1wt% of cottonseed oil weight, and the iodine number of the deep hydrogenation soybean oil is 0.9g I2/
100g；
Step 2: following first stage cooling being carried out to the rich mixture after melting in step 1, with 1.13 DEG C/minute
The cooling velocity of clock, and the mixture is stirred 1 hour with 30 revs/min of mixing speed, so that the mixture is cooled to 12
DEG C, obtain the first cooling mixture；Then, following second stage cooling is carried out to the first cooling mixture, with 0.058
DEG C/min cooling velocity, by the first cooling mixture by 2 hours stirring (mixing speed be 30 revs/min) drops
Temperature obtains the second cooling mixture to 5 DEG C；Then, start to carry out growing the grain with the second cooling mixture, the growing the grain is held
The continuous time is 12 hours, during growing the grain, is stirred with 30 revs/min of speed；
Step 3: use diaphragm filter press, under the operating pressure of 0.5MPa to complete crystallization second cooling mixture into
Row separation, obtains cottonseed solid oil fraction and cottonseed liquid oil part.
Refrigeration test detection is carried out to the cottonseed liquid oil that the present embodiment obtains, used detection method is the same as embodiment 1.
Cottonseed oil fractionation method described in the embodiment 7 uses deep hydrogenation soybean oil as crystallization-promoter, and crystallizes, growing the grain
Time is only 15 hours in total, and obtained cottonseed liquid oil can be kept 6 hours of clear state at 0 DEG C.
Embodiment 8
Cottonseed oil point mention using following techniques.
Step 1: using cottonseed oil as feedstock transportation into crystallizing tank, and deep hydrogenation soybean oil being added into the crystallizing tank
As crystallization-promoter, obtains rich mixture and be heated to 80 DEG C, be completely melt the rich mixture, wherein to be added
The amount of deep hydrogenation soybean oil is the 0.05wt% of cottonseed oil weight, and the iodine number of the deep hydrogenation soybean oil is 0.9g I2/
100g；
Step 2: following first stage cooling being carried out to the rich mixture after melting in step 1, with 1.13 DEG C/minute
The cooling velocity of clock, and the mixture is stirred 1 hour with 30 revs/min of mixing speed, so that the mixture is cooled to 12
DEG C, obtain the first cooling mixture；Then, following second stage cooling is carried out to the first cooling mixture, with 0.058
DEG C/min cooling velocity, by the first cooling mixture by 2 hours stirring (mixing speed be 30 revs/min) drops
Temperature obtains the second cooling mixture to 5 DEG C；Then, start to carry out growing the grain with the second cooling mixture, the growing the grain is held
The continuous time is 12 hours, during growing the grain, is stirred with 30 revs/min of speed；
Step 3: use diaphragm filter press, under the operating pressure of 0.5MPa to complete crystallization second cooling mixture into
Row separation, obtains cottonseed solid oil fraction and cottonseed liquid oil part.
Refrigeration test detection is carried out to the cottonseed liquid oil that the present embodiment obtains, used detection method is the same as embodiment 1.
Cottonseed oil fractionation method described in the embodiment 8 uses deep hydrogenation soybean oil as crystallization-promoter, and crystallizes, growing the grain
Time is only 15 hours in total, and obtained cottonseed liquid oil can be kept 5.5 hours of clear state at 0 DEG C.
Embodiment 9
Cottonseed oil point mention using following techniques.
Step 1: using cottonseed oil as feedstock transportation into crystallizing tank, and deep hydrogenation soybean oil being added into the crystallizing tank
As crystallization-promoter, obtains rich mixture and be heated to 80 DEG C, be completely melt the rich mixture, wherein to be added
The amount of deep hydrogenation soybean oil is the 0.2wt% of cottonseed oil weight, and the iodine number of the deep hydrogenation soybean oil is 0.9g I2/
100g；
Step 2: following first stage cooling being carried out to the rich mixture after melting in step 1, with 1.13 DEG C/minute
The cooling velocity of clock, and the mixture is stirred 1 hour with 30 revs/min of mixing speed, so that the mixture is cooled to 12
DEG C, obtain the first cooling mixture；Then, following second stage cooling is carried out to the first cooling mixture, with 0.058
DEG C/min cooling velocity, by the first cooling mixture by 2 hours stirring (mixing speed be 30 revs/min) drops
Temperature obtains the second cooling mixture to 5 DEG C；Then, start to carry out growing the grain with the second cooling mixture, the growing the grain is held
The continuous time is 12 hours, during growing the grain, is stirred with 30 revs/min of speed；
Step 3: use diaphragm filter press, under the operating pressure of 0.5MPa to complete crystallization second cooling mixture into
Row separation, obtains cottonseed solid oil fraction and cottonseed liquid oil part.
Refrigeration test detection is carried out to the cottonseed liquid oil that the present embodiment obtains, used detection method is the same as embodiment 1.
Cottonseed oil fractionation method described in the embodiment 9 uses deep hydrogenation soybean oil as crystallization-promoter, and crystallizes, growing the grain
Time is only 15 hours in total, and obtained cottonseed liquid oil can be kept 7 hours of clear state at 0 DEG C.
Comparative example 1
Cottonseed oil point mention using following techniques.
Step 1: using cottonseed oil as feedstock transportation into crystallizing tank, being heated to 80 DEG C, be completely melt cottonseed oil；
Step 2: following first stage cooling is carried out to the cottonseed oil in crystallizing tank, with 1.13 DEG C/min of cooling velocity,
And the cottonseed oil is stirred 1 hour with 30 revs/min of mixing speed, so that the cottonseed oil is cooled to 12 DEG C, obtains the first drop
Warm cottonseed oil；Then, following second stage cooling is carried out to the first cooling cottonseed oil, with 0.058 DEG C/min of cooling speed
The first cooling cottonseed oil is cooled to 5 DEG C by stirring (mixing speed is 30 revs/min) in 2 hours, obtains second by degree
Cool down cottonseed oil；Then, starting to carry out growing the grain with the second cooling cottonseed oil, the duration of the growing the grain is 12 hours,
During growing the grain, it is stirred with 30 revs/min of speed；
Step 3: use diaphragm filter press, under the operating pressure of 0.5MPa to complete crystallization second cooling cottonseed oil into
Row separation, obtains cottonseed solid oil fraction and cottonseed liquid oil part.
Refrigeration test detection is carried out to the cottonseed liquid oil that this comparative example obtains, used detection method is the same as embodiment 1.
Crystallization-promoter, and crystallization, rearing crystal time and implementation therein is not used in cottonseed oil fractionation method described in the comparative example 1
Example 1-3 is identical, but obtained cottonseed liquid oil is only capable of keeping 4.5 hours of clear state at 0 DEG C, and GB is not achieved
Cottonseed liquid oil in 1537-2003 requires (being still able to maintain clear through 5.5 hours at 0 DEG C).
Comparative example 2
Cottonseed oil point mention using following techniques.
Step 1: using cottonseed oil as feedstock transportation into crystallizing tank, being heated to 80 DEG C, be completely melt cottonseed oil；
Step 2: following first stage cooling is carried out to the cottonseed oil in crystallizing tank, with 1.13 DEG C/min of cooling velocity,
And the cottonseed oil is stirred 1 hour with 30 revs/min of mixing speed, so that the cottonseed oil is cooled to 12 DEG C, obtains the first drop
Warm cottonseed oil；Then, following second stage cooling is carried out to the first cooling cottonseed oil, with 0.058 DEG C/min of cooling speed
The first cooling cottonseed oil is cooled to 5 DEG C by stirring (mixing speed is 30 revs/min) in 2 hours, obtains second by degree
Cool down cottonseed oil；Then, start to carry out growing the grain with the second cooling cottonseed oil, the duration of growing the grain is 16 hours, is being supported
During crystalline substance, it is stirred with 30 revs/min of speed；
Step 3: use diaphragm filter press, under the operating pressure of 0.5MPa to complete crystallization second cooling cottonseed oil into
Row separation, obtains cottonseed solid oil fraction and cottonseed liquid oil part.
Refrigeration test detection is carried out to the cottonseed liquid oil that this comparative example obtains, used detection method is the same as embodiment 1.
Crystallization-promoter is not used in cottonseed oil fractionation method described in the comparative example 2, and obtained cottonseed liquid oil can be kept at 0 DEG C
It is 6 hours of clear state, identical as the result in embodiment 3.But the crystallization, rearing crystal time in comparative example 2 need in total
Want 19 hours, compared with method described in embodiment 3 spend more 4 hours of expense (that is, the crystallization spent in 2 the method for comparative example and
26.7%) rearing crystal time is more about.
By the way that cottonseed oil fractionation method described in 1-9 of the embodiment of the present invention is mentioned with cotton seed oil described in comparative example 1-2
Method, which is compared, can be seen that, for conventional cottonseed oil dry fractionation method, it is small to be shorter than 19 in crystallization and rearing crystal time
In the case of, the cottonseed liquid oil met in GB 1537-2003 about refrigeration test requirement can not be obtained.Using institute of the present invention
Cottonseed oil fractionation method of the addition deep hydrogenation vegetable oil stated as crystallization-promoter, can be in significant shorter crystallization and growing the grain
Interior (for example, only needing in embodiment 1-9 15 hours) obtains satisfactory cottonseed liquid oil.
It can be seen that the cottonseed oil fractionation method of the present invention using deep hydrogenation vegetable oil as crystallization-promoter can have
Effect ground shortens dividing for cottonseed oil and mentions the time, and the cottonseed liquid oil that can obtain meeting above-mentioned requirements of the national standard simultaneously is (that is, gained
The cottonseed liquid oil arrived can be kept clear state 5.5 hours or more at 0 DEG C).
Claims (24)
1. a kind of method for shortening cotton seed oil and mentioning the time, which is characterized in that described method includes following steps: Xiang Suoshu cottonseed
Deep hydrogenation vegetable oil is added in oil；
Wherein, the deep hydrogenation vegetable oil be deep hydrogenation palm oil, deep hydrogenation rapeseed oil, deep hydrogenation soybean oil or
Their any mixture；And wherein, the iodine number of the deep hydrogenation vegetable oil is less than 1g I2/100g。
2. the method according to claim 1, wherein the cottonseed oil is the three-level by depickling and degumming process
And the cottonseed oil of the above rank.
3. method according to claim 1 or 2, which is characterized in that the amount for the deep hydrogenation vegetable oil being added is cottonseed
The 0.05wt%-2wt% of oily weight.
4. according to the method described in claim 3, it is characterized in that, the amount for the deep hydrogenation vegetable oil being added is cottonseed oil weight
The 0.1wt%-0.5wt% of amount.
5. according to the method described in claim 4, it is characterized in that, the amount for the deep hydrogenation vegetable oil being added is cottonseed oil weight
The 0.1wt%-0.3wt% of amount.
6. a kind of fractionation method of cottonseed oil, which is characterized in that the method includes the following steps:
(1) cottonseed oil is conveyed into crystallizing tank, deep hydrogenation vegetable oil is then added into the crystallizing tank, obtains oil
The rich mixture is heated to being completely melt by lipoprotein mixture；
(2) following first stage cooling is carried out to the rich mixture after fusing in step (1), it is cold with 0.2-70 DEG C/h
The mixture is cooled to 3-20 DEG C by stirring in 0.5-10 hours, obtains the first cooling mixture by but speed；Then,
Following second stage cooling is carried out to the first cooling mixture, with 0.05-20 DEG C/h of cooling velocity, by described the
One cooling mixture is cooled to 0-10 DEG C by stirring in 0.5-10 hours, obtains the second cooling mixture；Then, start with institute
It states the second cooling mixture and carries out growing the grain；
(3) the second cooling mixture for completing crystallization is separated, thus obtains cottonseed liquid oil and cottonseed solid grease；
Wherein, the deep hydrogenation vegetable oil be deep hydrogenation palm oil, deep hydrogenation rapeseed oil, deep hydrogenation soybean oil or
Their any mixture；And wherein, the iodine number of the deep hydrogenation vegetable oil is less than 1g I2/100g。
7. according to the method described in claim 6, it is characterized in that, the cottonseed oil is by depickling in the step (1)
With the three-level of degumming process and the cottonseed oil of the above rank.
8. method according to claim 6 or 7, which is characterized in that in the step (1), the deep hydrogenation that is added
The amount of vegetable oil is the 0.05wt%-2wt% of cottonseed oil weight.
9. according to the method described in claim 8, it is characterized in that, the amount for the deep hydrogenation vegetable oil being added is cottonseed oil weight
The 0.1wt%-0.5wt% of amount.
10. according to the method described in claim 9, it is characterized in that, the amount for the deep hydrogenation vegetable oil being added is cottonseed oil
The 0.1wt%-0.3wt% of weight.
11. method according to claim 6 or 7, which is characterized in that in the step (1), by the rich mixture
It is heated to 40-80 DEG C.
12. method according to claim 6 or 7, which is characterized in that in the step (2), dropped in the first stage
Middle benefit gas is stirred the mixture with 5-50 revs/min of speed.
13. method according to claim 6 or 7, which is characterized in that in the step (2), in the second stage
In cooling, the first cooling mixture is stirred with 5-50 revs/min of speed.
14. method according to claim 6 or 7, which is characterized in that in the step (2), the growing the grain it is lasting when
Between be 2-12 hours.
15. method according to claim 6 or 7, which is characterized in that in the step (2), the growing the grain be accompanied by with
The stirring that 5-50 revs/min of mixing speed carries out.
16. method according to claim 6 or 7, which is characterized in that in the step (2), the first stage cooling
It is carried out with 0.5-5 DEG C/h of cooling velocity.
17. method according to claim 6 or 7, which is characterized in that in the step (2), the second stage cooling
It is carried out with 0.05-2 DEG C/h, with 0.1-2 DEG C/h of cooling velocity.
18. method according to claim 6 or 7, which is characterized in that in the step (3), using diaphragm filter press pair
The the second cooling mixture for completing crystallization is separated.
19. according to the method for claim 18, which is characterized in that the operating pressure of the diaphragm filter press is 0.01-
2MPa。
20. deep hydrogenation vegetable oil is in cotton seed oil mentions as the purposes of crystallization-promoter；
Wherein, the deep hydrogenation vegetable oil be deep hydrogenation palm oil, deep hydrogenation rapeseed oil, deep hydrogenation soybean oil or
Their any mixture；And wherein, the iodine number of the deep hydrogenation vegetable oil is less than 1g I2/100g。
21. purposes according to claim 20, which is characterized in that the cottonseed oil is three by depickling and degumming process
The cottonseed oil of grade and the above rank.
22. the purposes according to claim 20 or 21, which is characterized in that the amount for the deep hydrogenation vegetable oil being added is institute
State the 0.05wt%-2wt% of cottonseed oil weight.
23. purposes according to claim 22, which is characterized in that the amount for the deep hydrogenation vegetable oil being added is the cotton
The 0.1wt%-0.5wt% of seed oil weight.
24. purposes according to claim 23, which is characterized in that the amount for the deep hydrogenation vegetable oil being added is the cotton
The 0.1wt%-0.3wt% of seed oil weight.
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| CN201510434915.8A CN106367202B (en) | 2015-07-22 | 2015-07-22 | Shorten cotton seed oil and proposes the purposes of the method for time, the fractionation method of cottonseed oil and deep hydrogenation vegetable oil as crystallization-promoter |
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| CN201510434915.8A CN106367202B (en) | 2015-07-22 | 2015-07-22 | Shorten cotton seed oil and proposes the purposes of the method for time, the fractionation method of cottonseed oil and deep hydrogenation vegetable oil as crystallization-promoter |
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|---|---|---|---|---|
| CN1869182A (en) * | 2006-07-07 | 2006-11-29 | 白长军 | Method of extracting cotton seed oil |
| CN101760297A (en) * | 2008-12-24 | 2010-06-30 | 嘉里特种油脂（上海）有限公司 | Method for carrying out solid-liquid separation on plant oil or modified grease thereof |
| CN102228092A (en) * | 2011-05-31 | 2011-11-02 | 江南大学 | Method for preparing low/zero-trans fatty acid shortening by enzymatic interesterification |
| CN104629906A (en) * | 2013-11-07 | 2015-05-20 | 丰益(上海)生物技术研发中心有限公司 | Crystallization aid and fat fractionation method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8115022B2 (en) * | 2010-04-06 | 2012-02-14 | Heliae Development, Llc | Methods of producing biofuels, chlorophylls and carotenoids |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1869182A (en) * | 2006-07-07 | 2006-11-29 | 白长军 | Method of extracting cotton seed oil |
| CN101760297A (en) * | 2008-12-24 | 2010-06-30 | 嘉里特种油脂（上海）有限公司 | Method for carrying out solid-liquid separation on plant oil or modified grease thereof |
| CN102228092A (en) * | 2011-05-31 | 2011-11-02 | 江南大学 | Method for preparing low/zero-trans fatty acid shortening by enzymatic interesterification |
| CN104629906A (en) * | 2013-11-07 | 2015-05-20 | 丰益(上海)生物技术研发中心有限公司 | Crystallization aid and fat fractionation method |
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