CN106497674A - A kind of high strength supersonic is coupled the method that emulsifying agent promotes fat crystals - Google Patents
A kind of high strength supersonic is coupled the method that emulsifying agent promotes fat crystals Download PDFInfo
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- CN106497674A CN106497674A CN201610977945.8A CN201610977945A CN106497674A CN 106497674 A CN106497674 A CN 106497674A CN 201610977945 A CN201610977945 A CN 201610977945A CN 106497674 A CN106497674 A CN 106497674A
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- palm oil
- grease
- emulsifying agent
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B3/00—Refining fats or fatty oils
- C11B3/001—Refining fats or fatty oils by a combination of two or more of the means hereafter
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B3/00—Refining fats or fatty oils
- C11B3/005—Refining fats or fatty oils by wave energy or electric current, e.g. electrodialysis
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Microbiology (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- Edible Oils And Fats (AREA)
- Fats And Perfumes (AREA)
Abstract
The invention discloses a kind of high strength supersonic is coupled the method that emulsifying agent promotes fat crystals, belonging to fat crystals improves and control field.The present invention by palm oil and palm oil-base compounding grease be heated to uniform temperature eliminate crystallization memory, add different emulsifiers after heating stirring certain time, carry out after being cooled to ultrasonic temperature ultrasonically treated, obtain crystallographic property improvement grease.The present invention processes the palm oil and palm oil-base compounding fat crystals speed quickening for obtaining, and after the same terms storage, crystallization content increases, and crystallographic particle diameter diminishes, has a good application prospect.
Description
Technical field
The present invention relates to a kind of high strength supersonic is coupled the method that emulsifying agent promotes fat crystals, belong to fat crystals improvement
With control field.
Background technology
With people to palm oil and its point carry grease consumption figure increasing, the functional characteristic of its product is also increasingly
Paid attention to by consumer, but palm oil and its point carry grease and there are some defects in use, such as, with palm
Oil is the shortening of basic oil, margarine crystallization is relatively slow, so as to easily form big spherocrystal, has occurred in storage
Sand, rear hard phenomenon, have a strong impact on the feature of product, and needing the crystallization property to palm oil badly improves.
The method for improving palm oil crystal defect at present mainly includes carrying out palm oil point carrying, compound, ester exchange, hydrogenation
Deng.Meanwhile, people are also trying to explore and are studying new technology, to can preferably control on the basis of not feed change oil
Liquefaction fat crystallization process.It is a kind of new methods for changing fat crystals to add emulsifying agent in system, and emulsifying agent is to grease knot
Brilliant impact has much relations with the similitude on grease and emulsifier molecules structure.
Ultrasonic wave is a kind of elastic mechanical ripple of the frequency more than 20kHz.According to ultrasound intensity and the size of frequency, can surpass
The application of technology of acoustic wave is divided into following three class：1. high-strength ultrasonic：20～100kHz (destructiveness)；2. low-intensity ultrasonic：
100kHz～1MHz (non-destructive)；3. diagnostic ultrasound：1～10MHz (non-destructive).The energy source of high-strength ultrasonic
Insulating particles mechanical oscillation caused by it is in material medium, this vibration are interacted with the medium of surrounding, can produce sky
Change effect, be more likely formed nucleus around cavitation bubble, i.e., first nucleation, and void effect is burst apart the moment of closure, can be allowed to
Before be present in the crystal of ice crystal end and be crashed to pieces, define the crystal fragments of many, these crystal fragments can serve as new again
Nucleus, promotes secondary nucleation, shortens fat crystals induction time, accelerates crystallization.
Content of the invention
It is an object of the invention to provide a kind of method for improving fat crystals, reaches raising palm oil and palm oil-base compounding
Fat crystals speed, the purpose for improving its crystal habit.
Technical scheme comprises the steps：
(1) fat is eliminated crystallization memory；
(2) under the conditions of 60-85 DEG C, emulsifying agent is added in grease, the emulsifying agent is polyglyceryl fatty acid ester, distillation
Glycerin monostearate, stearoylketene sodium lactate or methyl glycol fatty acid ester, stir；
(3) cool to 20-35 DEG C；
(4) step (3) gained sample is processed using high strength supersonic, ultrasonic power is 190-285W, when ultrasonic
Between be 10-60s, wherein Ultrasound Instrument closes down 5s after often opening 5s.
In one embodiment of the invention, the grease is palm oil or palm oil-base compounding grease.
In one embodiment of the invention, step (1) the elimination crystallization memory is to place 5- at 60-85 DEG C
40min, to eliminate crystallization memory.
In one embodiment of the invention, the consumption of step (2) emulsifying agent is that palm oil or palm oil-base are multiple
0.5%-1.5% with grease.
In one embodiment of the invention, step (2) is with the speed stirred sample 5-30min of 150-400rpm.
The palm oil is that the fractionated palm oil of 24-60 DEG C of scope of fusing point carries grease；The palm oil-base compounding grease is palm fibre
Palmitic acid oil is 3-5 with vegetable oil in mass ratio:The grease of 1 compounding.
This method is coupled emulsifying agent using high strength supersonic improves the crystalline rate that palm oil and palm oil-base compound grease
And crystal habit, the present invention achieves following beneficial effect：
(1) method for being coupled emulsifying agent using high strength supersonic improves the crystallization that palm oil and palm oil-base compound grease
Property, compared to high strength supersonic is individually adopted, is coupled after there is the emulsifying agent for promoting fat crystals effect, and effect is more excellent.
(2) crystalline rate that palm oil and palm oil-base compound grease is improve, after the same terms storage same time, warp
The palm oil sample crystallization quantitative change for crossing high strength supersonic coupling emulsifying agent process is big, and crystallographic particle diameter diminishes.
(3) method is simple, and with low cost, effect is obvious.
Description of the drawings
Fig. 1. high strength supersonic is coupled impact of the emulsifying agent to palm oil crystalline rate.
Fig. 2. inhibitory action of the emulsifying agent to palm oil crystalline rate.
Fig. 3. high strength supersonic is coupled impact of the methyl glycol fatty acid ester to palm oil crystal habit；(A) feedstock oil without
Process is crossed, (B) feedstock oil high strength supersonic is processed, (C) feedstock oil adds methyl glycol fatty acid ester, (D) feedstock oil high intensity surpasses
Sound is coupled methyl glycol fatty acid ester and processes.
Specific embodiment
Following embodiments are using its thermostatical crystallization speed of desk-top nmr determination.
Embodiment 1
30g palm oils are taken in clean dried container, water-bath 30min in 80 DEG C of water-baths is placed in, crystallization memory is eliminated.Plus
Enter 0.3g Distilled glycerin monostearates, using temperature control magnetic agitation instrument under the conditions of 80 DEG C with the speed stirred sample of 200rpm
20min.10g samples are weighed in 50mL centrifuge tubes, ice-water bath cools down sample to 30 DEG C.Sample is carried out using high strength supersonic
Process, ultrasonic power is 237.5W, and ultrasonic time is 30s (stops containing pulse, open 5s, close 5s).Pipette 3-4mL samples special in nuclear-magnetism
With in glass tube, its solid fats content is determined using desk-top NMR every 30s.Cover glass, slide are put into 30 DEG C
In insulating box after preheating 30min, sample is distinguished after sample preparation, be placed in 4 DEG C of insulating box constant temperature and keep 12h, carry out microscope crystal
Microstructure observing.By its crystallization kinetics constant of Avrami equation analysis, gained crystallization rate constant k values are 0.0365,
More plus emulsifying agent, not ultrasound sample rate constant k values 0.00143 big, crystalline rate adds block, crystallizes quantitative change greatly, crystal particle diameter
Diminish.
Embodiment 2
30g palm oils are taken in clean dried container, water-bath 30min in 80 DEG C of water-baths is placed in, crystallization memory is eliminated.Plus
Enter 0.3g polyglyceryl fatty acid esters, using temperature control magnetic agitation instrument under the conditions of 80 DEG C with the speed stirred sample of 200rpm
20min.10g samples are weighed in 50mL centrifuge tubes, ice-water bath is cooled to 30 DEG C.Using high strength supersonic to sample at
Reason, ultrasonic power are 237.5W, and ultrasonic time is 30s (stops containing pulse, open 5s, close 5s).Pipette 3-4mL samples special in nuclear-magnetism
In glass tube, its solid fats content is determined using desk-top NMR every 30s.Cover glass, slide are put into 30 DEG C of perseverances
In incubator after preheating 30min, sample is distinguished after sample preparation, be placed in 4 DEG C of insulating box constant temperature and keep 12h, carry out microscope crystal micro-
See structure observation.By its crystallization kinetics constant of Avrami equation analysis, gained crystallization rate constant k values are 0.0313, compared with
Not plus emulsifying agent, not ultrasound sample rate constant k values 0.00143 big, crystalline rate adds block, and crystallization quantitative change is big, and crystal particle diameter becomes
Little.
Embodiment 3
Take 30g palm oil-bases compounding grease (24 DEG C of palm olein oils：54 DEG C of palm stearins：Soybean oil=45:35:20,w/w/
W) and in clean dried container, water-bath 30min in 80 DEG C of water-baths is placed in, eliminates crystallization memory.Add 0.3g propylene glycol fatties
Acid esters, using temperature control magnetic agitation instrument under the conditions of 80 DEG C with the speed stirred sample 20min of 200rpm.Weigh 10g samples in
In 50mL centrifuge tubes, ice-water bath is cooled to 30 DEG C.Sample is processed using high strength supersonic, ultrasonic power is 237.5W,
Ultrasonic time is 30s (stops containing pulse, open 5s, close 5s).3-4mL samples are pipetted in nuclear-magnetism special glass tube, using desk-top core
Magnetic resonance device determines its solid fats content every 30s.Cover glass, slide are put in 30 DEG C of insulating boxs after preheating 30min, right
After sample difference sample preparation, it is placed in 4 DEG C of insulating box constant temperature and keeps 12h, carry out microscope crystal microscopic structure observation.By Avrami
Equation analysis its crystallization kinetics constants, gained crystallization rate constant k values are 0.00251, more plus emulsifying agent, not ultrasonic sample
Rate constants k value 0.00143 is big, and under combination of ultrasound emulsifying agent treatment conditions, crystalline rate adds block, crystallization content as can be seen from Figure 3
Become big, crystal particle diameter diminishes.
Embodiment 4
On the basis of embodiment 3, emulsifying agent is replaced with sucrose ester, palm acidity sucrose ester, remaining reaction bar respectively
Part is consistent, and by its crystallization kinetics constant of Avrami equation analysis, as a result shows sucrose ester, palmitic acid-type is respectively adopted
When sucrose ester is emulsifying agent, gained crystallization rate constant k values respectively 0.00002,3.54E-7 do not add emulsifying agent, ultrasound
Sample rate constant k values 0.00143 are little, and crystalline rate slows down, and crystallization content diminishes, and crystal particle diameter becomes big.
Embodiment 5
On the basis of embodiment 3, emulsifying agent is replaced with stearoylketene sodium lactate, remaining reaction condition is consistent, led to
Avrami equation analysis its crystallization kinetics constants is crossed, and when as a result showing stearoylketene sodium lactate to be adopted for emulsifying agent, gained is crystallized
Rate constants k value is respectively 0.00729, more plus emulsifying agent, not ultrasound sample rate constant k values 0.00143 greatly, crystalline rate
Plus block, greatly, crystal particle diameter diminishes for crystallization quantitative change.
Although the present invention is disclosed as above with preferred embodiment, which is not limited to the present invention, any is familiar with this skill
The people of art, without departing from the spirit and scope of the present invention, can do various changes and modification, therefore protection model of the invention
Enclosing should be by being defined that claims are defined.
Claims (10)
1. a kind of promote fat crystals method, it is characterised in that comprise the steps：
(1) grease is eliminated crystallization memory；
(2) under the conditions of 60-85 DEG C, in grease, emulsifying agent, the emulsifying agent is added to be polyglyceryl fatty acid ester, distill list firmly
Glycerol, stearoylketene sodium lactate or methyl glycol fatty acid ester, stir；
(3) cool to 20-35 DEG C；
(4) step (3) gained sample is processed using high strength supersonic, ultrasonic power is 190-285W, ultrasonic time is
10-60s, wherein Ultrasound Instrument close down 5s after often opening 5s.
2. method according to claim 1, it is characterised in that the grease is palm oil or palm oil-base compounding grease.
3. method according to claim 1, it is characterised in that step (1) is described to eliminate crystallization memory is put at 60-85 DEG C
5-40min is put, to eliminate crystallization memory.
4. method according to claim 1, it is characterised in that the consumption of step (2) emulsifying agent is palm oil or palm fibre
Palmitic acid oil base compounds the 0.5%-1.5% of grease.
5. method according to claim 1, it is characterised in that step (2) is with the speed stirred sample 5- of 150-400rpm
30min.
6. according to the arbitrary described method of Claims 1 to 5, it is characterised in that the palm oil is 24-60 DEG C of scope of fusing point
Fractionated palm oil carries grease；It is 3-5 with vegetable oil in mass ratio that the palm oil-base compounding grease is palm oil:The grease of 1 compounding.
7. the method according to claim 1 or 3, it is characterised in that step (1) is described to eliminate crystallization memory is put at 80 DEG C
30min is put, to eliminate crystallization memory.
8. method according to claim 1 or 5, it is characterised in that step (2) is with the speed stirred sample of 200rpm
20min.
9. method according to claim 1 or 5, it is characterised in that step (4) ultrasonic power is 237.5W, ultrasonic time
For 30s, wherein Ultrasound Instrument closes down 5s after often opening 5s.
10. according to the arbitrary described method of claim 1～9, it is characterised in that the consumption of step (2) emulsifying agent is palm fibre
Palmitic acid oil or the 1% of palm oil-base compounding grease.
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| CN201610977945.8A CN106497674B (en) | 2016-11-08 | 2016-11-08 | A kind of method that high strength supersonic coupling emulsifier promotes fat crystals |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110655981A (en) * | 2019-11-20 | 2020-01-07 | 中储粮油脂工业东莞有限公司 | Palm oil ultrasonic wave that combines two crystallizer is divided and is carried equipment |
| CN110982616A (en) * | 2019-11-20 | 2020-04-10 | 东莞理工学院 | Ultrasonic fractionation equipment for palm oil |
| CN114806699A (en) * | 2022-04-27 | 2022-07-29 | 广汉市迈德乐食品有限公司 | Method for improving hardness of beef tallow based on strengthening internal structure of fat crystal |
| CN115053931A (en) * | 2022-05-31 | 2022-09-16 | 江南大学 | Grease crystallization promoter and preparation method and application thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110655981A (en) * | 2019-11-20 | 2020-01-07 | 中储粮油脂工业东莞有限公司 | Palm oil ultrasonic wave that combines two crystallizer is divided and is carried equipment |
| CN110982616A (en) * | 2019-11-20 | 2020-04-10 | 东莞理工学院 | Ultrasonic fractionation equipment for palm oil |
| CN114806699A (en) * | 2022-04-27 | 2022-07-29 | 广汉市迈德乐食品有限公司 | Method for improving hardness of beef tallow based on strengthening internal structure of fat crystal |
| CN114806699B (en) * | 2022-04-27 | 2023-09-08 | 广汉市迈德乐食品有限公司 | Butter hardness improvement method based on strengthening fat crystal internal structure |
| CN115053931A (en) * | 2022-05-31 | 2022-09-16 | 江南大学 | Grease crystallization promoter and preparation method and application thereof |
| CN115053931B (en) * | 2022-05-31 | 2023-08-25 | 江南大学 | Grease crystallization promoter and preparation method and application thereof |
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