CN105454456A - Butter extractant as well as preparation method and application thereof - Google Patents

Butter extractant as well as preparation method and application thereof Download PDF

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Publication number
CN105454456A
CN105454456A CN201510849161.2A CN201510849161A CN105454456A CN 105454456 A CN105454456 A CN 105454456A CN 201510849161 A CN201510849161 A CN 201510849161A CN 105454456 A CN105454456 A CN 105454456A
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butter
oil
cream
short
molecular distillation
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***
芦晶
张书文
刘鹭
逄晓阳
高希西
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Institute of Food Science and Technology of CAAS
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Institute of Food Science and Technology of CAAS
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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23D—EDIBLE OILS OR FATS, e.g. MARGARINES, SHORTENINGS, COOKING OILS
    • A23D7/00—Edible oil or fat compositions containing an aqueous phase, e.g. margarines
    • A23D7/02—Edible oil or fat compositions containing an aqueous phase, e.g. margarines characterised by the production or working-up
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23D—EDIBLE OILS OR FATS, e.g. MARGARINES, SHORTENINGS, COOKING OILS
    • A23D7/00—Edible oil or fat compositions containing an aqueous phase, e.g. margarines
    • A23D7/005—Edible oil or fat compositions containing an aqueous phase, e.g. margarines characterised by ingredients other than fatty acid triglycerides
    • A23D7/0053—Compositions other than spreads

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Dairy Products (AREA)

Abstract

The invention discloses a butter extractant as well as a preparation method and an application thereof. The method comprises the following steps: dehydrated butter is subjected to short-path molecular distillation, and the butter extractant is obtained. The butter extractant prepared with the short-path molecular distillation technology has physicochemical characteristics and processing characteristics different from those of the butter as a raw material, advantages of components can be exerted better, and the application of the butter in the food field is broadened.

Description

Butter fractionation thing and preparation method thereof and application
Technical field
The invention belongs to Dairy Processing field, relate to a kind of butter fractionation thing and preparation method thereof and application.
Background technology
Cream (butter) has another name called butter, for raw material with newborn and (or) rare cream (through fermentation or azymic), add or do not add other raw materials, food additives and nutrition fortifier, the fat content through being processed into is not less than the product of 80.0%.Cream is a very important series products in dairy industry, and it has natural frankincense local flavor, good sensory attribute, abundant nutritive value and various functional characteristic.But some characteristics of cream, as broad thawing scope (-40 DEG C ~ 40 DEG C), higher cholesterol level and higher saturated fatty acid content etc., limit the application of cream in food processing field.Butter fractionation thing is the molecular size range of the triglycerides according to composition cream, is extracted, possess the fractionation component of some physicochemical characteristics being different from cream former state and processing characteristics by physical means from cream.The appearance of butter fractionation thing can play the advantage of each component better, expands cream in the application of field of food, but at present butter fractionation thing preparation and be applied in and domesticly still belong to blank.
Molecular clock (moleculardistillation) technology is again short-path distillation (short-pathdistillation) technology, a kind of liquid-liquid separation process, the main efficient separation relying on the difference of molecule mean free path between different compound to carry out compound.In molecular clock process, material composition to be separated can volatilize at far below the temperature of atmospheric boiling point, and the thermal histories of each component is very short, therefore becomes and be separated at present the gentleest distillating method of object product, be particularly suitable for the separation of higher boiling, viscosity is large, thermal sensitivity is poor natural material.Current molecular distillation technique has been successfully applied to the industries such as medical treatment, cosmetics, fine chemistry industry, perfume industry.
The extensive use of molecular distillation technique in other industry field is that the preparation of butter fractionation thing provides thinking.In general, the material molecule mean free path that molecular weight is little is large, on the contrary the material that molecular weight is large.Coordinate the change of some parameters (as vapo(u)rizing temperature, vacuum, charging rate, knifing rotating speed etc.) in molecular clock process, in cream, the triglycerides of different sized molecules amount can obtain certain separation by molecular distillation technique, thus prepares a series of butter fractionation thing being different from cream former state physicochemical characteristic and processing characteristics.Molecular distillation technique is a kind of pure physical fractionation process, do not need in production process to add any chemical substance, and the thermal histories of each component is very short, the natural structure of material can not be destroyed, the product produced has good functional characteristic, is with a wide range of applications at food processing field.
Summary of the invention
The object of this invention is to provide a kind of butter fractionation thing and preparation method thereof and application.
The method preparing butter fractionation thing provided by the invention, comprises the steps: to carry out short-range molecular distillation to anhydrous butter oil, obtains described butter fractionation thing.
In the anhydrous butter oil of said method, the mass percentage of fat is greater than 99.8%, specifically can be 99.9% or 100.0% or 99.9-100.0%, to prevent a small amount of water of existing in anhydrous butter oil and protein (especially water), damage is caused to the sliding vane rotary pump and oil diffusion pump that provide condition of high vacuum degree condition;
Described anhydrous butter oil is for obtaining according to comprising the steps method preparation: after being melted completely by cream, leave standstill, cooling, get upper oil phase.
In described cream, the mass percentage of moisture, not higher than 16.0%, specifically can be 13.0%, 14.54% or 15.01% or 14.54%-15.01%;
The mass percentage of fat is not less than 80.0%, specifically can be 82.36% or 83.28% or 82.36%-83.28% or 86%;
Acidity is not higher than 20.0 ° of T, specifically can be 18 ° of T;
The mass percentage of non-dairy fat solid is not higher than 2.0%, specifically can be 1.0%;
Total number of bacteria, not higher than 500,000/g, is specially 4.8 ten thousand/g;
Described by complete for cream thawing step, temperature is 50 DEG C-60 DEG C;
Described cooling stating step is to obtain best oil-water separation, to ensure to undope in next step oil phase pipetted the material such as moisture, protein as far as possible;
In described cooling stating step, temperature is 4 DEG C, and the time is 3-4 hour, to remove the liquid material such as moisture, protein in bottom, pipettes the oil phase that upper strata is solid-state.
In described short-range molecular distillation step, vacuum is 1 × 10 -3mbar-3 × 10 -3mbar;
Evaporating temperature is 150 DEG C-250 DEG C, is specially 165-240 DEG C, is more specifically 190 DEG C, 210 DEG C or 225 DEG C;
The rotating speed of film forming motor is 120r/min-180r/min, is specially 150r/min;
The oil bath temperature of feed system is 50 DEG C-70 DEG C, is specially 60 DEG C;
Charging rate is 1.5mL/min-2.5mL/min, is specially 2.0mL/min.
In described short-range molecular distillation step, instrument is made up of feed system, vacuum system, separated system, heating system and gathering system, disengagement area is not less than 0.048sqm, condensation area is not less than 0.065sqm, and most high evaporation temperature is 350 DEG C, and inlet amount is 0.1-1.5kg/h, heat medium is 330 conduction oils, as can purchased from Shenyang Xue Shi chemical products Co., Ltd, commodity be called QD330 conduction oil, and evaporimeter material is Pyrex.The evaporimeter of Pyrex manufacture is more conducive to observing still-process, particularly observes the generation whether having bubble or splash phenomena in the film forming of material, discharging process and still-process; Selecting the complete short course distillation device of full heating, being all furnished with chuck to carry out whole process heating to material from being fed to discharging, be suitable for distilling viscosity material that is very high or even solid at normal temperatures.
Described short-range molecular distillation step is the size in order to the triglycerides molecular weight according to composition cream, carries out fractionation, obtain the butter fractionation thing being different from cream former state physicochemical characteristic and processing characteristics to cream.
Described short-range molecular distillation step specifically comprises:
The air conducting valve that a, closedown instrument are all, liquid nitrogen being encased in (charge weight is more than half, lower than needing below half to add) in cold-trap, opening vavuum pump group (sliding vane rotary pump and oil diffusion pump coupling), vacuum drawn is carried out to system, makes vacuum reach 1 × 10 -3mbar-3 × 10 -3mbar;
Primary heater (in order to avoid in evaporimeter, air heats expansion is pressed in producing and damages glass container) opened again by b, guarantee instrument after first reaching vacuum state, setting evaporating temperature is 150 DEG C-250 DEG C, has set rear startup optimization;
C, when evaporator temperature reaches 150 DEG C, open film forming motor, prevent film forming roller from damaging, the rotating speed of adjustment film forming motor is 120r/min-180r/min;
D, the oil bath temperature of feed system is adjusted to 50 DEG C-70 DEG C, adjustment charging rate is 1.5mL/min-2.5mL/min.
Described short-range molecular distillation step more specifically comprises:
The air conducting valve that a, closedown instrument are all, liquid nitrogen being encased in (charge weight is more than half, lower than needing below half to add) in cold-trap, opening vavuum pump group (sliding vane rotary pump and oil diffusion pump coupling), vacuum drawn is carried out to system, makes vacuum reach 1 × 10 -3mbar;
Primary heater (in order to avoid in evaporimeter, air heats expansion is pressed in producing and damages glass container) opened again by b, guarantee instrument after first reaching vacuum state, setting evaporating temperature is 165 DEG C-240 DEG C, has set rear startup optimization;
C, when evaporator temperature reaches 150 DEG C, open film forming motor, prevent film forming roller from damaging, the rotating speed of adjustment film forming motor is 150r/min;
D, the oil bath temperature of feed system is adjusted to 60 DEG C, adjustment charging rate is 2.0mL/min.
Described method also comprises the steps:
After described short-range molecular distillation step, collected the light component obtained in described butter fractionation thing by light phase discharging opening;
The heavy constituent obtained in described butter fractionation thing is collected by heavy phase discharging opening.
Short-range molecular distillation instrument only has two discharging openings, and one receives the material flow down along Distallation systm tube wall, is heavy phase discharging opening; One receives the material flow down along condenser, is light phase discharging opening.
In addition, the butter fractionation thing prepared according to the method described above and the product containing described butter fractionation thing, also belong to protection scope of the present invention.Wherein, described product specifically can be food.Described butter fractionation thing comprises two parts: light component and heavy constituent.
The present invention uses short-range molecular distillation technology to achieve fractionation to different molecular weight component in cream, successfully prepare the butter fractionation thing with some physicochemical characteristics being different from cream former state and processing characteristics, the advantage of each component can be played better, expand the application of cream at field of food.
Accompanying drawing explanation
Fig. 1 is the butter fractionation thing of anhydrous butter oil and preparation, is from left to right followed successively by anhydrous butter oil, the light component of embodiment 1, the heavy constituent of embodiment 1, the light component of embodiment 2, the heavy constituent of embodiment 2, the light component of embodiment 3, the heavy constituent of embodiment 3.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further elaborated, but the present invention is not limited to following examples.Described method is conventional method if no special instructions.Described raw material all can obtain from open commercial sources if no special instructions.Raw materials used cream is purchased from Shanghai De Yang Food Co., Ltd; Heating water bath equipment reliablely tests Instrument Ltd. purchased from Shanghai is gloomy; Short-range molecular distillation equipment is purchased from German UIC company.This short-range molecular distillation equipment is made up of feed system, vacuum system, separated system, heating system and gathering system, disengagement area is not less than 0.048sqm, condensation area is not less than 0.065sqm, most high evaporation temperature is 350 DEG C, and inlet amount is 0.1-1.5kg/h, and maximum vacuum is 0.00lmbar, heat medium is 330 conduction oils, purchased from Shenyang Xue Shi chemical products Co., Ltd, commodity are called QD330 conduction oil, and evaporimeter material is Pyrex.Raw material cream is purchased from Shanghai DS poplar Food Co., Ltd, and production code member is 19415007024061.
The preparation of embodiment 1, butter fractionation thing
(1) melt: get raw material cream 500g, the mass percentage of raw material milk water content in oil is 13.0%, the mass percentage of fat is 86.0%, and the mass percentage of non-dairy fat solid is 1.0%, acidity 18 ° of T, total number of bacteria 4.8 ten thousand/g; This raw material cream is heated until cream melts completely, profit layering under 60 DEG C of water bath condition.
(2) pipette oil phase: by 500g step 1) process after raw material cream cool under 4 DEG C of conditions leave standstill 4 hours, remove bottom liquid state the material such as moisture, protein, pipette the oil phase that upper strata is solid-state.The mass percentage obtaining fat is the anhydrous butter oil 419.5g of 99.9%.
(3) short-range molecular distillation: by step 2) gained anhydrous butter oil all drops in short-range molecular distillation equipment, and by the insulation oil bath of opening feed system, feeding temperature is stabilized in 60 DEG C;
After equipment power transmission, each attached parts (receiving the demolition part such as flask, cold-trap) are in place, close the air conducting valve that instrument is all, liquid nitrogen is encased in cold-trap that (charge weight is more than half, lower than needing below half to add), open vavuum pump group (sliding vane rotary pump and oil diffusion pump coupling), vacuum drawn is carried out to system, makes vacuum reach 1 × 10 -3mbar;
Ensure to open primary heater (in order to avoid in evaporimeter, air heats expansion is pressed in producing and damages glass container) after instrument first reaches vacuum state again, setting evaporating temperature is 190 DEG C, has set rear startup optimization;
When actuator temperature to be evaporated reaches 150 DEG C, open film forming motor, prevent film forming roller from damaging, the rotating speed regulating film forming motor is 150r/min;
Actuator temperature to be evaporated reach 190 DEG C and stable after, open feed containers needle-valve and start charging, adjustment charging rate is 2.0mL/min.
After having distilled, obtain light component and the heavy constituent of butter fractionation thing from two discharging openings respectively, weigh after bottling cooling, the productive rate obtaining light component is 7.63%, and the productive rate of heavy constituent is 91.85%.
The pictorial diagram of butter fractionation thing as shown in Figure 1.As seen from the figure, light component is the light yellow of uniformity, clear transparent; Heavy constituent shows slightly muddy, and in buff, a little crystalline deposit is arranged at bottom.
Anhydrous butter oil used for charging and distillation gained light component and heavy constituent are measured aliphatic acid composition and content according to chloroacetic chloride-methyl alcohol methyl esterization of GB5413.27-2010, specifically carry out as follows:
Under 60 DEG C of water bath condition, sample is melted completely, about 0.3g sample is taken in the screw socket glass tube of drying after stirring, add 5.0mL toluene, abundant concussion makes sample dissolve completely, then adds the chloroacetic chloride methanol solution of 6.0mL10% (volume fraction), is filled with nitrogen, screw screw lid immediately, in 80 DEG C ± 1 DEG C Water Under bath 2h after concussion mixing, period takes out every 20min and jolts for several times, makes its complete esterification.Take out after water-bath and be cooled to room temperature, reacted sample liquid is transferred in 50mL centrifuge tube, with 3.0mL sodium carbonate liquor, (6g natrium carbonicum calcinatum is dissolved in water, be settled in 100mL volumetric flask) cleaning glass tube, in triplicate, merge sodium carbonate liquor in 50mL plastic centrifuge tube, the centrifugal 5min of 5000r/min.Get 2mL supernatant and cross 0.2 μm of filter membrane, air inlet chromatograph.
Gas-chromatography condition of work and result are calculated as follows: chromatographic column is VarianCP-Sil88 (100m × 0.25mm × 0.2 μm).Chromatographic condition: carrier gas is high-purity nitrogen (99%), and flow velocity is 1.0mL/min; Injector temperature is 200 DEG C; Heating schedule is 80 DEG C and keeps 1min, is then warmed up to 200 DEG C with 2 DEG C/min, keeps 2min, then be warmed up to 230 DEG C with 5 DEG C/min, keep 15min.Adopt fid detector, detected temperatures is 300 DEG C; Air velocity is 300mL/min, and hydrogen flow rate is 30mL/min, and tail wind drift speed is 29mL/min.With reference to 37 kinds of fatty acid methyl esters mixed mark qualitative, quantitative, adopt area normalization method result of calculation.
Acquired results is as shown in table 1.
The aliphatic acid composition of table 1, anhydrous butter oil and butter fractionation thing and percentage composition (wt/wt)
Note 1: result is the average of twice parallel determinations;
Note 2:SCFA represents SCFA (C4-C8), MCFA represents medium chain fatty acid (C10-C15), and LCFA represents LCFA (C16-C18), and SFA represents saturated fatty acid, MUFA represents monounsaturated fatty acids, and PUFA represents polyunsaturated fatty acid.
As can be seen from Table 1, butter fractionation thing forms identical with the aliphatic acid of anhydrous butter oil, but content there occurs the change of certain rule.Aliphatic acid can be illustrated Changing Pattern better according to short chain (C4 ~ C8), medium chain (C10 ~ C15), long-chain (C16 ~ C20) and saturated, the unsaturated classification analysis that carries out.
Compared with anhydrous butter oil, in light component, short chain and Medium chain fatty acid content raise, and long-chain fatty acid content reduces; Otherwise heavy constituent.Saturated fatty acid is enriched in light component more, the percentage composition light component > anhydrous butter oil > heavy constituent of saturated fatty acid.Above rule explanation, after short-range molecular distillation, composition in anhydrous butter oil obtains obvious separation according to the size of molecular weight, and especially the content of fatty acid of light component and anhydrous butter oil has bigger difference, makes it have the character that some are different from anhydrous butter oil.
Cholesterol level, the slip point testing result of anhydrous butter oil and distillation gained light component and heavy constituent are as shown in table 2.
The cholesterol level of table 2, anhydrous butter oil and butter fractionation thing and slip point
Note: result is the average of twice parallel determinations.
In anhydrous butter oil, the content of cholesterol is 3.620mg/g, is a kind of food that cholesterol level is higher.After short-range molecular distillation, cholesterol is mainly enriched in light component, and in heavy constituent, cholesterol level is only 0.300%, and this illustrates that short-range molecular distillation can the cholesterol of effective extracting more than 90%.
Compared with anhydrous butter oil, the slip point of light component obviously reduces, and the slip point of heavy constituent has certain rising, illustrates that the butter fractionation thing prepared by short-range molecular distillation technology has the processing characteristics being different from cream former state.
The preparation of embodiment 2, butter fractionation thing
(1) melt: get raw material cream 300g, the mass percentage of raw material milk water content in oil is 13.0%, the mass percentage of fat is 86.0%, and the mass percentage of non-dairy fat solid is 1.0%, acidity 18 ° of T, total number of bacteria 4.8 ten thousand/g; This raw material cream is heated until cream melts completely, profit layering under 60 DEG C of water bath condition.
(2) pipette oil phase: by 300g step 1) process after raw material cream cool under 4 DEG C of conditions leave standstill 4 hours, remove bottom liquid state the material such as moisture, protein, pipette the oil phase that upper strata is solid-state.The mass percentage obtaining fat is the anhydrous butter oil 251.7g of 99.9%.
(3) short-range molecular distillation: by step 2) gained anhydrous butter oil all drops in short-range molecular distillation equipment, and by the insulation oil bath of opening feed system, feeding temperature is stabilized in 60 DEG C;
After equipment power transmission, each attached parts (receiving the demolition part such as flask, cold-trap) are in place, close the air conducting valve that instrument is all, liquid nitrogen is encased in cold-trap that (charge weight is more than half, lower than needing below half to add), open vavuum pump group (sliding vane rotary pump and oil diffusion pump coupling), vacuum drawn is carried out to system, makes vacuum reach 1 × 10 -3mbar;
Ensure to open primary heater (in order to avoid in evaporimeter, air heats expansion is pressed in producing and damages glass container) after instrument first reaches vacuum state again, setting evaporating temperature is 210 DEG C, has set rear startup optimization;
When actuator temperature to be evaporated reaches 150 DEG C, open film forming motor, prevent film forming roller from damaging, the rotating speed regulating film forming motor is 150r/min;
Actuator temperature to be evaporated reach 210 DEG C and stable after, open feed containers needle-valve and start charging, adjustment charging rate is 2.0mL/min.
After having distilled, obtain light component and the heavy constituent of butter fractionation thing from two discharging openings respectively, weigh after bottling cooling, the productive rate obtaining light component is 12.22%, and the productive rate of heavy constituent is 86.89%.
The pictorial diagram of butter fractionation thing as shown in Figure 1.As seen from the figure, light component is the faint yellow of uniformity, clear transparent; Heavy constituent shows slightly muddy, and in buff, bottom has partially crystallizable to precipitate.
The preparation of embodiment 3, butter fractionation thing
(1) melt: get raw material cream 250g, the mass percentage of raw material milk water content in oil is 13.0%, the mass percentage of fat is 86.0%, and the mass percentage of non-dairy fat solid is 1.0%, acidity 18 ° of T, total number of bacteria 4.8 ten thousand/g; This raw material cream is heated until cream melts completely, profit layering under 60 DEG C of water bath condition.
(2) pipette oil phase: by 250g step 1) process after raw material cream cool under 4 DEG C of conditions leave standstill 4 hours, remove bottom liquid state the material such as moisture, protein, pipette the oil phase that upper strata is solid-state.The mass percentage obtaining fat is the anhydrous butter oil 208.7g of 99.9%.
(3) short-range molecular distillation: by step 2) gained anhydrous butter oil all drops in short-range molecular distillation equipment, and by the insulation oil bath of opening feed system, feeding temperature is stabilized in 60 DEG C;
After equipment power transmission, each attached parts (receiving the demolition part such as flask, cold-trap) are in place, close the air conducting valve that instrument is all, liquid nitrogen is encased in cold-trap that (charge weight is more than half, lower than needing below half to add), open vavuum pump group (sliding vane rotary pump and oil diffusion pump coupling), vacuum drawn is carried out to system, makes vacuum reach 1 × 10 -3mbar;
Ensure to open primary heater (in order to avoid in evaporimeter, air heats expansion is pressed in producing and damages glass container) after instrument first reaches vacuum state again, setting evaporating temperature is 225 DEG C, has set rear startup optimization;
When actuator temperature to be evaporated reaches 150 DEG C, open film forming motor, prevent film forming roller from damaging, the rotating speed regulating film forming motor is 150r/min;
Actuator temperature to be evaporated reach 225 DEG C and stable after, open feed containers needle-valve and start charging, adjustment charging rate is 2.0mL/min.
After having distilled, obtain light component and the heavy constituent of butter fractionation thing from two discharging openings respectively, weigh after bottling cooling, the productive rate obtaining light component is 18.92%, and the productive rate of heavy constituent is 80.49%.
The pictorial diagram of butter fractionation thing as shown in Figure 1.As seen from the figure, light component is the dark yellow of uniformity, clear transparent free from admixture; Heavy constituent shows slightly muddy, and in buff, bottom has partially crystallizable to precipitate.
Integrated embodiment 1,2,3, carry out the detection of aliphatic acid, cholesterol, slip point to anhydrous butter oil and distillation gained light component and heavy constituent, result is as shown in table 3.
The aliphatic acid composition of table 3, anhydrous butter oil and butter fractionation thing, cholesterol level and slip point
Note 1: result is the average of twice parallel determinations;
Note 2:SFA represents saturated fatty acid; A, B, C represent embodiment 1,2,3 respectively, as light component A represents the light component in embodiment 1, by that analogy.
Note 3: measure saturated fatty acid percentage composition with reference to GB5413.27-2010, measures cholesterol level with reference to T-CHOL RNA isolation kit, measures slip point with reference to GB/T24892-2010.
Saturated fatty acid percentage composition and cholesterol level represent the chemical composition of anhydrous butter oil and butter fractionation thing, and slip point represents processing characteristics.After short-range molecular distillation, the saturated fatty acid percentage composition of heavy constituent reduces, and cholesterol level reduces, and slip point slightly raises, on the contrary light component.The slip point of light component comparatively anhydrous butter oil has obvious reduction, at room temperature presents liquid state, illustrates that short-range molecular distillation significantly can improve the processing characteristics of butter fractionation thing; In heavy constituent, cholesterol level is about less than 10 of anhydrous butter oil, illustrates that short-range molecular distillation can cholesterol effectively in extracting anhydrous butter oil
In addition, 50mL beaker is placed in above-described embodiment 1,2,3 gained butter fractionation thing, hears its smell, under natural daylight, observe color and luster and structural state, carry out sensory evaluation, evaluation result is: light component is the light yellow of uniformity, have strong frankincense local flavor, structural state is clear transparent; Heavy constituent shows slightly muddy, and in buff, have good frankincense local flavor, a little crystalline deposit is arranged at bottom.
Microbiological indicator detection is carried out to embodiment 1,2,3 gained butter fractionation thing, detection method and testing result as shown in table 4:
The microorganism detection of table 4, butter fractionation thing
As seen from table, in gained butter fractionation thing, light component and heavy constituent all meet above-mentioned standard through Micro biological Tests.
To sum up illustrate, the butter fractionation thing utilizing short-range molecular distillation technology to prepare has the physicochemical characteristic different from raw material cream and processing characteristics, can play the advantage of each component better, expands the application of cream at field of food.

Claims (10)

1. prepare a method for butter fractionation thing, comprise the steps:
Short-range molecular distillation is carried out to anhydrous butter oil, obtains described butter fractionation thing.
2. method according to claim 1, is characterized in that: in described anhydrous butter oil, and the mass percentage of fat is greater than 99.8%.
3. method according to claim 1 and 2, is characterized in that: described anhydrous butter oil is for obtaining according to comprising the steps method preparation:
After being melted completely by cream, cooling leaves standstill, and gets upper oil phase.
4. method according to claim 3, it is characterized in that: in described cream, the mass percentage of moisture is not higher than 16.0%, the mass percentage of fat is not less than 80.0%, acidity is not higher than 20.0 ° of T, the mass percentage of non-dairy fat solid is not higher than 2.0%, and total number of bacteria is not higher than 500,000/g.
5. the method according to claim 3 or 4, is characterized in that: described by complete for cream thawing step, temperature is 50 DEG C-60 DEG C;
In described cooling stating step, temperature is 4 DEG C, and the time is 3-4 hour.
6., according to described method arbitrary in claim 1-5, it is characterized in that: in described short-range molecular distillation step, vacuum is 1 × 10 -3mbar-3 × 10 -3mbar;
Evaporating temperature is 150 DEG C-250 DEG C;
The rotating speed of film forming motor is 120r/min-180r/min;
The oil bath temperature of feed system is 50 DEG C-70 DEG C;
Charging rate is 1.5mL/min-2.5mL/min.
7., according to described method arbitrary in claim 1-6, it is characterized in that: described method also comprises the steps:
After described short-range molecular distillation step, collected the light component obtained in described butter fractionation thing by light phase discharging opening;
The heavy constituent obtained in described butter fractionation thing is collected by heavy phase discharging opening.
8. the butter fractionation thing that in claim 1-7, arbitrary described method prepares.
9. the product containing butter fractionation thing described in claim 8.
10. product according to claim 9, is characterized in that: described product is food.
CN201510849161.2A 2015-11-27 2015-11-27 Butter extractant as well as preparation method and application thereof Pending CN105454456A (en)

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EP0442184A1 (en) * 1990-02-15 1991-08-21 Campbell Soup Company Production of low cholesterol animal fat by short path distillation
CN1964631A (en) * 2004-07-30 2007-05-16 不二制油株式会社 Water-in-oil type emulsifying composition to be rolled in

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