CN101744080B - Manufacturing method of rapid-crystallization low trans fatty acid containing cocoa butter substitute - Google Patents
Manufacturing method of rapid-crystallization low trans fatty acid containing cocoa butter substitute Download PDFInfo
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- CN101744080B CN101744080B CN2008102044579A CN200810204457A CN101744080B CN 101744080 B CN101744080 B CN 101744080B CN 2008102044579 A CN2008102044579 A CN 2008102044579A CN 200810204457 A CN200810204457 A CN 200810204457A CN 101744080 B CN101744080 B CN 101744080B
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- Edible Oils And Fats (AREA)
- Fats And Perfumes (AREA)
- Confectionery (AREA)
Abstract
The invention discloses a manufacturing method of rapid-crystallization low trans fatty acid containing cocoa butter substitute, comprising the following steps: palm-kernel oil (PKO), palm-kernel oil fractionation substance (PKST), palm-kernel oil stearin (ST) and hard palm-kernel oil stearin (hard ST) are mixed to carry out ester exchange to obtain the cocoa butter substitute; the iodine value of the palm-kernel oil stearin is 30-35, the iodine value of the hard palm-kernel oil stearin is 14-20, and the weight ratio of the palm-kernel oil, the palm-kernel oil fractionation substance, the palm-kernel oil stearin and the hard palm-kernel oil stearin is 0.7-15:0.05-0.5:0.6-3.0:0.3-1.5.
Description
Technical field
The present invention relates to field of food, relate in particular to a kind of preparation method of the cocoa butter that contains low trans fatty acid of rapid crystallization.
Background technology
Natural cocoa butter (CB) is to be raw material with the cocoa bean, through cleaning, removes the peel, and series of processes such as squeezing make grease.Because this grease has raciness, be difficult for oxidation and do not decomposed by lipolytic enzyme, viscosity was suitable when processing was chocolate, be easy to advantages such as blending and moulding, thereby it was to produce the indispensable lubricant component of good chocolate.Cocoa chocolate tree is grown in the torrid areas, owing to receive the limitation of area and weather, the cocoa butter that makes with cocoa bean can not satisfy the demand that chocolate industry develops far away, because of this grease source of goods is not enough, costs an arm and a leg in recent years, gives chocolate manufacturer very big difficulty.
Use cocoa butter substitute production chocolate can enlarge its output, reduce production costs.The cocoa butter substitute mainly is divided into:
(1) cacaolike butter (cocoa butter equivalents) (CBE), is also referred to as cocoa butter equivalent and extension.
(2) substitute of cocoa fat (cocoa butter substitutes) (CBS) is also referred to as bay type cocoa butter substituent.
(3) cocoa butter (cocoa butter replacers) (CBR) is also referred to as non-bay type cocoa butter substituent.
Chemical composition and the cocoa butter of CBE are similar, mainly contain symmetric form triglycerides 1,3-palmitic acid-2-olein (POP), 1-palmitic acid-2-oleic acid-3-tristerin (POS), 1,3-stearic acid-2-olein (SOS).The production of CBE mainly is the fat of using the triglycerides identical with CB, and that usually adopts has palm oil, mango butter, shea butter etc. to divide to carry to obtain.CBE can use arbitrary proportion to mix mutually with CB under different temperatures.The shortcoming of CB and CBE fat is their significant crystalline polymorph characteristic and low-down crystalline rate.Polymorphic fat must carry out temperature adjustment to obtain the product of stable storing in complex apparatus before curing.And temperature adjustment is a complicacy and expensive technology.
CBS is that to contain laurate with coconut oil, palm kernel wet goods be the grease that approaches the cocoa butter physical property that the raw oil material of main component obtains through technologies such as selective hydrations, contains the laurate more than 50% usually.When making chocolate with CBS, crystallization rate is fast, time of staying weak point in cooling device, and product price is cheap.But CBS has following shortcoming: CBS and has lower cocoa butter tolerance limit on the one hand, can cause the defective of chocolate product outer surface frosting; If have lipase in the system on the other hand, CBS can produce soapy flavor.
CBR is with cotton seed oil, and it is main vegetable fat that palm oil, soybean oil and rice bran wet goods contain C16 and sweet three esters of C18 aliphatic acid, the grease that approaches the cocoa butter physical property that obtains through selecting technology such as hydrogenation.The aliphatic acid of CBR is formed similar with natural cocoa butter, mainly is stearic acid (S), palmitic acid acid (P), oleic acid (O), therefore is superior to CBS with the cocoa butter compatibility.Because it is more to contain antiform oleic acid, so the fusing point broad.Chocolate ratio with CBR makes is cheaply half the with cocoa butter, and processing chocolate emits the frostwork phenomenon less, does not produce the danger of soapy flavor, good heat resistance, and the sense of wax shape is arranged.But contain the trans-fatty acid more than 40% in the CBR triglycerides usually, these trans-fatty acids can improve blood cholesterol levels, and have the danger of coronary heart disease.
The crystal property of fat mainly receives the influence of the polymorphic microstructure of fat.Fat mainly contains three kinds of crystal formation α, β ' and β usually.Traditional C BR exists with α and β ' crystal formation, and its stable crystal formation is β '.The triglycerides of traditional C BR contains a large amount of trans-fatty acids, such as PEP, sweet three esters of PPE (E elaidic acid) can make CBR when the crystallization very soon from its stable β ' crystal formation of alpha-crystal form conversion.Contain a certain amount of lauric CBR in addition and also can reach same effect.And contain a small amount of trans-fatty acid or lauric CBR its during from its stable β ' crystal formation of alpha-crystal form conversion speed comparatively slow.Have fast that the CBR of crystalline rate can improve production efficient, practice thrift cost.
CN101035434 has reported that a kind of production hangs down laurate, trans-fatty acid fat composition method, but the used technology of this method complicated (ester exchange, solvent branch are carried and hydrogenation process) contains nearly 11% trans-fatty acid in this product in addition.
The palm kernel oil content of mentioning among the US2005276900 is carried tristearin (PKST) and fractionated palm oil and is carried the fat that the method for tristearin (ST) ester exchange is not contained trans acids, then with itself and the mixed margarine of high oleic sunflower oil.The method can't reach the requirement of solid fat content requirement of CBR and fast crystallization rate.So-called CBR consolidates fat content and is meant that CBR need reach the characteristic of cocoa butter as the substitute of cocoa butter: promptly in the time of 30 ℃, consolidate fat content 35%; Still be solid, this moment was both hard and crisp, was enough to resist finger-marks power; And in the time of 35 ℃; Gu fat content is 0, just when being lower than human temperature slightly, all melt.Promptly to satisfy the characteristic that cocoa butter " only is dissolved in mouth, is insoluble to hand ".
Therefore this area presses for and a kind ofly has the low trans fatty acid content, has fast crystallization rate, while not only but also can reach the cocoa butter that CBR consolidates the fat content requirement; And the letter of said cocoa butter need be provided, not need the preparation method of complicated temperature adjustment program.
Summary of the invention
The present invention aims to provide a kind ofly to be had the low trans fatty acid content, not only have fast crystallization rate, while but also can reach the simple and convenient process for preparing of the cocoa butter of the solid fat content requirement of CBR.
In first aspect of the present invention, a kind of preparation method of cocoa butter is provided, described method comprises step:
Palm-kernel oil (PKO), palm-kernel oil fraction leach-s/tive (PKST), fractionated palm oil are carried tristearin (ST) and fractionated palm oil to be carried tristearin (Hard ST) and mixes the back and in the presence of catalyst, carry out ester exchange and obtain cocoa butter;
Said palm-kernel oil, palm-kernel oil fraction leach-s/tive, fractionated palm oil are carried tristearin and fractionated palm oil, and to put forward the weight ratio of tristearin be 0.7-1.5: 0.05-0.5: 0.6-3.0: 0.3-1.5.
In another preference, it is 30-35 that said fractionated palm oil is put forward stearic iodine value, and it is 14-20 that fractionated palm oil is put forward stearic iodine value.
In another preference, iodine value is that to put forward stearic and iodine value be that the weight ratio that the fractionated palm oil of 14-20 is carried tristearin is 1.0-3.0 to the fractionated palm oil of 30-35: 1; More preferably, weight ratio is 1.5-2.5: 1.
In another preference, said palm-kernel oil, palm-kernel oil fraction leach-s/tive, fractionated palm oil are carried tristearin and fractionated palm oil to put forward the weight ratio of tristearin are 0.9-1.2: 0.1-0.35: 1.2-1.5: 0.5-0.8.
In another preference, carried out ester exchange 30-60 minute at 60-100 ℃.
In another preference, described ester exchange catalyst is selected from sodium methoxide, caustic alcohol; More preferably, be sodium methoxide.
In another preference, described method comprises step:
(1) palm-kernel oil (PKO), palm-kernel oil fraction leach-s/tive (PKST), fractionated palm oil are carried tristearin (ST) and fractionated palm oil and carry tristearin (Hard ST) and mix the back and dehydrate, obtain mixture I at 90-120 ℃; Said palm-kernel oil, palm-kernel oil fraction leach-s/tive, fractionated palm oil are carried tristearin and fractionated palm oil, and to put forward the weight ratio of tristearin be 0.7-1.5: 0.05-0.5: 0.6-3.0: 0.3-1.5; Preferred weight ratio is 0.9-1.2: 0.1-0.35: 1.2-1.5: 0.5-0.8; With
(2) mixture I and ester exchange catalyst mixing back were obtained cocoa butter in 30-60 minute 60-100 ℃ of reaction; Described ester exchange catalyst is selected from sodium methoxide, caustic alcohol.
More preferably, described ester exchange catalyst is a sodium methoxide.
In another preference, adopt two kinds of said fractionated palm oils to carry tristearin: a kind of iodine value is carried tristearin for the 30-35 fractionated palm oil, and another kind of iodine value is carried hard tristearin for the 14-20 fractionated palm oil; Iodine value is that to put forward stearic and iodine value be that the weight ratio that the fractionated palm oil of 14-20 is carried tristearin is 1.0-3.0 to the fractionated palm oil of 30-35: 1.
In another preference, said palm-kernel oil, palm-kernel oil fraction leach-s/tive, fractionated palm oil are carried tristearin and fractionated palm oil to put forward the weight ratio of tristearin are 0.9-1.2: 0.1-0.35: 1.2-1.5: 0.5-0.8; Iodine value be the fractionated palm oil of 30-35 carry stearic and iodine value be the fractionated palm oil of 14-20 carry tristearin weight ratio for being 1.5-2.5: 1.
In second aspect of the present invention, a kind of cocoa butter is provided, described cocoa butter is through preparing like above-mentioned preparation method provided by the invention.
In view of the above, the invention provides and a kind ofly have the low trans fatty acid content, not only have fast crystallization rate, while but also can reach the cocoa butter of the solid fat content requirement of CBR; And the letter of said cocoa butter is provided, has not needed the preparation method of complicated temperature adjustment program.
Description of drawings
Fig. 1 has shown that the solid fat of the CBR of embodiment 1 gained contains discharge curve.
Fig. 2 has shown that the solid fat of the CBR of embodiment 2 gained contains discharge curve.
Fig. 3 has shown that the solid fat of the CBR of embodiment 3 gained contains discharge curve.
Fig. 4 has shown the crystalline rate contrast situation of four kinds of products in the time of 10 ℃.
The specific embodiment
The inventor is through extensive and deep research; An amount of laurate is introduced in discovery in the raw material of ester exchange reaction; The cocoa butter that can obtain to have the low trans fatty acid content and have fast crystallization rate; Further, if with fractionated palm oil carry tristearin (ST), fractionated palm oil carries tristearin (Hard ST) and palm-kernel oil (PKO), palm-kernel oil fraction leach-s/tive (PKST) carry out ester exchange together, the cocoa butter that is obtained also has the solid fat content of satisfactory CBR simultaneously.
Definition
As used herein, " palm kernel " also can be described as " trachycarpi,fructus ", is meant the ripening fruits of Palmae Trachycarpus plant palm Trachycarpus fortunei (Hook.) H.Wendl..
As used herein, " palm-kernel oil (PKO) " is meant the vegetable oil that from palm kernel, extracts, and obtains grease through refining.
As used herein, " palm-kernel oil fraction leach-s/tive (PKST) " palm-kernel oil fraction leach-s/tive (PKST) is meant takes freezing branch to put forward the generally component between 5-7 of iodine value that technology obtains from PKO.
As used herein, " fractionated palm oil is carried tristearin (ST) " is meant and from palm oil, takes freezing branch to put forward the generally component between 30-45 of iodine value that technology obtains.
As used herein, " fractionated palm oil is carried tristearin (Hard ST) " is meant to carry from fractionated palm oil and takes freezing branch to put forward the generally component between 14-25 of iodine value that technology obtains the tristearin.
As used herein, " iodine value (IV) " is meant that the quality (in iodine) of the halogen of addition on grease makes iodine number again, and promptly every 100g grease can absorb the quality (in gram) of iodine.Iodine value is pressed GB/T 5532-1995 standard test.
The preparation method
The present invention provides the method for the rapid crystallization cocoa butter that a kind of production has the low trans fatty acid content.Comprise make contain a) palm-kernel oil (PKO) and palm-kernel oil fraction leach-s/tive (PKST) and b) fractionated palm oil carry tristearin (ST) and fractionated palm oil and carry fat blend that tristearin (Hard ST) forms through ester exchange.Wherein said fractionated palm oil is put forward tristearin (ST) iodine value at 30-35; Fractionated palm oil is put forward tristearin (Hard ST) iodine value at 14-20.
In one embodiment of the invention, described preparation method is:
A, drying: at elevated temperatures; Preferred 90-120 ℃; For example 105 ℃; Decompression (0-1000Pa) will contain down a) palm-kernel oil (PKO) and palm-kernel oil fraction leach-s/tive (PKST) and b) fractionated palm oil carry tristearin (ST) and fractionated palm oil and carry the fat blend that tristearin (Hard ST) forms and dehydrate so that prevent the inactivation of catalyst;
B, ester exchange: at elevated temperatures, preferred 60-100 ℃, for example 80 ℃; Under the condition of high degree of agitation, add known ester exchange catalyst (for example, sodium methoxide) and make the fat blend ester exchange that obtains in the steps A; Accomplish preferred 45min behind general about 30-60min;
C, make catalysqt deactivation, for example, through adding 10% hot water or adding 8% citric acid hydrothermal solution; With
D, conventional refining.
In another preference of the present invention; In said refinement step, remove the soap that forms in the ester exchange process through repeated water washing; And the product after under 500Pa, will washing is once more after the drying, obtains cocoa butter with fat blend decolouring and the deodorization after with ester exchange of the method for routine.
The present invention will be used as the raw materials for production of the more valuable CBR of the present invention, the high-melting-point cut that described accessory substance is carried such as but not limited to fractionated palm oil from relatively cheap accessory substance that the vegetable oil branch is carried.
Cocoa butter
The cocoa butter that method of the present invention makes has following characteristic:
1. solid fat content (measuring) according to AOCS Cd 16b-93 method
| Temperature (℃) | Gu fat content (%) |
| 10 | 80-97 |
| 20 | 60-90 |
| 30 | 30-45 |
| 35 | 10-20 |
| 40 | 0-8 |
2. aliphatic acid is formed
| Aliphatic acid | Content (wt%) |
| C8:0 | 0-5 |
| C10:0 | 0-10 |
| C12:0 | 10-25 |
| C14:0 | 0-10 |
| C16:0 | 35-50 |
| C18:0 | 3-10 |
| C18:1 | 10-30 |
| C18:2 | 0-10 |
| Trans acids | 0-1 |
Can obtain the cocoa butter that rapid crystallization has the low trans fatty acid content through method of the present invention, its content of trans fatty acids is at most 1%.
The above-mentioned characteristic that the present invention mentions, or the characteristic that embodiment mentions can combination in any.All characteristics that this case specification is disclosed can with any composition forms and usefulness, each characteristic that is disclosed in the specification can anyly provide the alternative characteristics of identical, impartial or similar purpose to replace.Therefore removing has special instruction, the characteristic that is disclosed to be merely the general example of equalization or similar features.
Major advantage of the present invention is:
1, the product that preparation method provided by the invention obtained has the crystalline rate faster than commercially available low-antiform CBR;
The amount of the trans-fatty acid that the CBR that 2, preparation method provided by the invention obtained contains can be used as the cocoa butter substitute that does not contain trans-fatty acid less than 1%;
3, preparation method provided by the invention has reduced production cost significantly:
1) through utilizing fractionated palm oil to carry accessory substance and ester exchange acquisition CBR, fractionated palm oil is carried accessory substance and is fully used, and has reduced the cost of raw materials for production;
2) technology is simple: do not need hydrogenation, do not need the solvent branch to carry;
3) improved the crystalline rate of low-antiform CBR, production efficiency is accelerated in the time of can making CBR as coating, thereby reduces CBR coating cost.
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in the restriction scope of the present invention.The experimental technique of unreceipted actual conditions in the following example is usually according to the normal condition or the condition of advising according to manufacturer.Unless otherwise indicated, otherwise all percentage, ratio, ratio or umber by weight.
Only if definition separately, employed all specialties are identical with the meaning that scientific words and one skilled in the art are familiar with in the literary composition.In addition, any with the institute similar content of putting down in writing or the equalization method and material all can be applicable in the inventive method.The usefulness that preferable implementation method described in the literary composition and material only present a demonstration.
Used palm-kernel oil fraction leach-s/tive (PKST), palm-kernel oil (PKO), palm stearin branch are carried tristearin (ST) and are purchased in Nanhai Grease Industrial (Chi Wan) Co., Ltd. among the embodiment, and fractionated palm oil is carried tristearin (Hard ST) and purchased the Sdn.Bhd. in PGEO Edible Oils
Embodiment 1
Preparation cocoa butter I
With PKST (IV=6.2), PKO (IV=17), ST (IV=33) and Hard ST (IV=16) by weight 33: 7: 42: 18 mix, and heat to 105 ℃, vacuumize stirring simultaneously, keep 1h, dehydration; In the ester exchange jar, add 0.5% catalyst sodium methoxide, react 45min down at 80 ℃; Add 8% aqueous citric acid solution then, continue to stir 20min, cessation reaction.Reactant washed wash, take off soap, be heated to 105 ℃ again, keep 30min to dehydrate to pH=7; The atlapulgite of adding 2% keeps 30min to decolour down at 110 ℃, filters, and gets the ester exchange grease.After 230 ℃, 200Pa and nitrogen are advertised down with ester exchange grease deodorization 4h, obtain cocoa butter I at last, its aliphatic acid is formed and is seen table 1.
Table 1
| Aliphatic acid | Content (wt%) |
| C8:0 | 1.0 |
| C10:0 | 1.3 |
| C12:0 | 22.8 |
| C14:0 | 9.3 |
| C16:0 | 44.2 |
| C18:0 | 3.8 |
| C18:1 | 13.9 |
| C18:2 | 2.8 |
| Trans acids | 0.12 |
Preparation cocoa butter II
Press the method for embodiment 1, its rich mixture baking temperature is 90 ℃, and transesterification reaction temperature is 60 ℃, and the reaction time is 60min; With PKST (IV=5.4), PKO (IV=18.3), ST (IV=34.1) and Hard ST (IV=17.4) by weight 31: 9: 39: 21 mixed esters exchanges, obtain cocoa butter II after the refining, its aliphatic acid is formed and is seen table 2.
Table 2
| Aliphatic acid | Content (wt%) |
| C8:0 | 1.1 |
| C10:0 | 0.8 |
| C12:0 | 17.0 |
| C14:0 | 8.5 |
| C16:0 | 45.5 |
| C18:0 | 4.7 |
| C18:1 | 18.4 |
| C18:2 | 3.4 |
| Trans acids | 0.5 |
Embodiment 3
Preparation cocoa butter III
Press the method for embodiment 1, its rich mixture baking temperature is 120 ℃, and transesterification reaction temperature is 100 ℃, and the reaction time is 30min; With PKST (IV=5.4), PKO (IV=18.3), ST (IV=34.1) and Hard ST (IV=15) by weight 31: 9: 41: 19 mixed esters exchanges, obtain cocoa butter III after the refining, its aliphatic acid is formed and is seen table 3.
Table 3
| Aliphatic acid | Content (wt%) |
| C8:0 | 0.6 |
| C10:0 | 0.9 |
| C12:0 | 19.4 |
| C14:0 | 8.9 |
| C16:0 | 45.5 |
| C18:0 | 4.2 |
| C18:1 | 16.2 |
| C18:2 | 3.1 |
| Trans acids | 0.5 |
Embodiment 4
The crystalline rate test
With the crystalline rate test comparison of product of the present invention (CBR) with three kinds of CBR that can on market, buy.
The test product:
-according to cocoa butter III
-DP3839K (originating from loders croklaan) comprises trans-fatty acid less than 1%;
-Akopol LT 11 (originating from Karl shamns) comprises trans-fatty acid 11%;
-N1500 (originating from Nanhai Grease Industrial (Chi Wan) Co., Ltd.) comprises trans-fatty acid 45%;
Method of testing:
Under following prescription, each test product is tested:
Cocoa power 5%
Icing Sugar 48%
Whole milk powder 14%
Test product 32.5%
Lecithin 0.5%
By above prescription mixture is put into ball mill at 50 ℃, rotating speed mixes 10min for 6.5 grades, and 3 grades are mixed 30min.Make particle size reach 20-25 μ m, at last product is put into 65 ℃ of refining 12h on the conche.Then slurry is put into coating machine, use down,, in three grades of cooling tunnels, cool off subsequently to apply wafer at 45 ℃.Its temperature is set at: 12 ℃ of 8 ℃ of first sections, 7 ℃ of second sections and last sections.Use total time to be: 3,5,7,9,11,13,15 and 17min.
After each cooling cycle, coating is estimated.When product during not at sticking wrapping paper, product is then through organoleptic examination.
Test result:
See table 4 and Fig. 4.
Table 4
| The test product | Setting time (min) |
| Product of the present invention | 9 |
| N1500 | 7 |
| DP3893K | 11 |
| Akopol?LT?11 | 13 |
The result shows that product C BR crystalline rate of the present invention is slower slightly but faster than DP3893K and Akopol LT 11 than containing the more N1500 of trans-fatty acid in the time of 10 ℃.Show that product of the present invention has the freezing rate faster than commercially available low-antiform CBR, and is suitable with the freezing rate of high trans CBR.
The above is merely preferred embodiment of the present invention; Be not in order to limit essence technology contents scope of the present invention; Essence technology contents of the present invention is broadly to be defined in the claim scope of application, and if any technological entity or method that other people accomplish are defined identical with the claim scope of application; Also or a kind of change of equivalence, all will be regarded as and be covered by among this claim scope.
Claims (14)
1. the preparation method of a cocoa butter is characterized in that, described method comprises step:
Palm-kernel oil (PKO), palm-kernel oil fraction leach-s/tive (PKST), fractionated palm oil are carried tristearin (ST) and fractionated palm oil to be carried tristearin (Hard ST) and mixes the back and in the presence of catalyst, carry out ester exchange and obtain cocoa butter;
Said palm-kernel oil, palm-kernel oil fraction leach-s/tive, fractionated palm oil are carried tristearin and fractionated palm oil, and to put forward the weight ratio of tristearin be 0.7-1.5: 0.05-0.5: 0.6-3.0: 0.3-1.5;
Said palm-kernel oil fraction leach-s/tive (PKST) is meant takes freezing branch to put forward the component of iodine value between 5-7 that technology obtains from PKO;
Said fractionated palm oil is carried tristearin (ST) and is meant and from palm oil, takes freezing branch to put forward the component of iodine value between 30-45 that technology obtains;
Said fractionated palm oil is carried tristearin (Hard ST) and is meant to carry from fractionated palm oil and takes freezing branch to put forward the component of iodine value between 14-25 that technology obtains the tristearin.
2. preparation method as claimed in claim 1 is characterized in that, it is 30-35 that said fractionated palm oil is put forward stearic iodine value, and it is 14-20 that fractionated palm oil is put forward stearic iodine value.
3. preparation method as claimed in claim 2 is characterized in that, iodine value is that to put forward stearic and iodine value be that the weight ratio that the fractionated palm oil of 14-20 is carried tristearin is 1.0-3.0 to the fractionated palm oil of 30-35: 1.
4. preparation method as claimed in claim 3 is characterized in that, iodine value is that to put forward stearic and iodine value be that the weight ratio that the fractionated palm oil of 14-20 is carried tristearin is 1.5-2.5 to the fractionated palm oil of 30-35: 1
5. preparation method as claimed in claim 1 is characterized in that, said palm-kernel oil, palm-kernel oil fraction leach-s/tive, fractionated palm oil are carried tristearin and fractionated palm oil to put forward the weight ratio of tristearin be 0.9-1.2: 0.1-0.35: 1.2-1.5: 0.5-0.8.
6. preparation method as claimed in claim 1 is characterized in that, carries out ester exchange 30-60 minute at 60-100 ℃.
7. preparation method as claimed in claim 1 is characterized in that described ester exchange catalyst is selected from sodium methoxide, caustic alcohol.
8. preparation method as claimed in claim 7 is characterized in that described ester exchange catalyst is a sodium methoxide.
9. preparation method as claimed in claim 1 is characterized in that, described method comprises step:
(1) palm-kernel oil (PKO), palm-kernel oil fraction leach-s/tive (PKST), fractionated palm oil are carried tristearin (ST) and fractionated palm oil and carry tristearin (Hard ST) and mix the back and dehydrate, obtain mixture I at 90-120 ℃; Said palm-kernel oil, palm-kernel oil fraction leach-s/tive, fractionated palm oil are carried tristearin and fractionated palm oil, and to put forward the weight ratio of tristearin be 0.7-1.5: 0.05-0.5: 0.6-3.0: 0.3-1.5; With
(2) mixture I and ester exchange catalyst mixing back were obtained cocoa butter in 30-60 minute 60-100 ℃ of reaction; Described ester exchange catalyst is selected from sodium methoxide, caustic alcohol.
10. preparation method as claimed in claim 9 is characterized in that, palm-kernel oil, palm-kernel oil fraction leach-s/tive, fractionated palm oil described in the step (1) are carried tristearin and fractionated palm oil to put forward the weight ratio of tristearin be 0.9-1.2: 0.1-0.35: 1.2-1.5: 0.5-0.8.
11. preparation method as claimed in claim 9 is characterized in that, the ester exchange catalyst described in the step (2) is a sodium methoxide.
12. preparation method as claimed in claim 9 is characterized in that, it is 30-35 that said fractionated palm oil is put forward stearic iodine value, and the iodine value that said fractionated palm oil is carried tristearin is 14-20; Iodine value is that to put forward stearic and iodine value be that the weight ratio that the fractionated palm oil of 14-20 is carried tristearin is 1.0-3.0 to the fractionated palm oil of 30-35: 1.
13. preparation method as claimed in claim 12 is characterized in that, said palm-kernel oil, palm-kernel oil fraction leach-s/tive, fractionated palm oil are carried tristearin and fractionated palm oil to put forward the weight ratio of tristearin are 0.9-1.2: 0.1-0.35: 1.2-1.5: 0.5-0.8; Iodine value is that to put forward stearic and iodine value be that the weight ratio that the fractionated palm oil of 14-20 is carried tristearin is 1.5-2.5 to the fractionated palm oil of 30-35: 1.
14. a cocoa butter is characterized in that, described cocoa butter is through obtaining like arbitrary preparation method among the claim 1-13.
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| WO2012161105A1 (en) * | 2011-05-25 | 2012-11-29 | 不二製油株式会社 | Fat composition for chocolate |
| CN103907736B (en) * | 2013-01-09 | 2019-03-12 | 丰益(上海)生物技术研发中心有限公司 | Fat composition for chocolate coating |
| CN104126676B (en) * | 2013-05-03 | 2019-06-07 | 丰益(上海)生物技术研发中心有限公司 | Sandwich fat or oil composition |
| CN106922842B (en) * | 2015-12-29 | 2021-04-06 | 嘉里特种油脂（上海）有限公司 | Grease composition with stable beta' crystal form and preparation method thereof |
| WO2020178180A1 (en) * | 2019-03-01 | 2020-09-10 | Aak Ab (Publ) | A vegetable fat composition comprising c14 fatty acids |
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| CN1030604A (en) * | 1988-06-16 | 1989-01-25 | 江西师范大学 | A kind of preparation method of substitute of cocoa fat |
| US5932275A (en) * | 1998-03-31 | 1999-08-03 | Nestec S.A. | Palm kernel oil blends |
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