CN105524710A - A squeezing preparing method for 6S1D soybean oil - Google Patents
A squeezing preparing method for 6S1D soybean oil Download PDFInfo
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- CN105524710A CN105524710A CN201511008175.8A CN201511008175A CN105524710A CN 105524710 A CN105524710 A CN 105524710A CN 201511008175 A CN201511008175 A CN 201511008175A CN 105524710 A CN105524710 A CN 105524710A
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- soybean oil
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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
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/06—Production of fats or fatty oils from raw materials by pressing
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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
- C11B3/008—Refining fats or fatty oils by filtration, e.g. including ultra filtration, dialysis
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
A squeezing preparing method for 6S1D soybean oil is disclosed. The method includes steps of (1) smashing soybean, (2) squeezing at 35-55 DEG C, (3) adding an acid solution into crude oil prepared by squeezing with the mass of the acid solution being 2-8 wt% of the mass of the crude oil, and stirring for 25-35 min, (4) precipitating and (5) filtering. According to the method, improvements are made on traditional soybean oil refining processes at present, main reasons for soybean oil color reversion in refining processes are found, and the phosphorus content of the oil after degumming with the composite acid solution is significantly reduced, and therefore degummed oil with a low phosphorus content, a low acid value and a bright and clear color can be obtained, color reversion of the soybean oil is effectively inhibited, refining processes are simplified, energy consumption is reduced, the amount of industrial waste discharge is reduced, the refining yield of the crude oil is increased and the production cost is saved.
Description
Technical field
The present invention relates to soybean oil processing technique field, be specifically related to a kind of 6S1D soybean oil squeezing preparation method.
Background technology
Soybean oil derives from soybean seeds, is one of modal food oils of people's daily life.The process that at present both at home and abroad grease factory produces is come unstuck, depickling, decolouring, deodorization purified soyabean oil, its product color is faint yellow, but in storage, transport and process of consumption, the purified soyabean oil color of deodorization can produce constantly deepens phenomenon, i.e. so-called grease color reversion phenomenon.All can there is color reversion phenomenon in the grease produced under physical refining and chemical refining two kinds of modes, especially serious with physical refining, comprise from the external production line for refining introduced, the grease of production also color reversion phenomenon can occur.The degree of soybean oil generation color reversion because of internal factor and external condition difference and there is obvious difference, a few hours at least, long then about half a year, namely color reaches the top of color reversion, and purified soyabean oil generation color reversion phenomenon is more obvious than other food oils.
In recent years, domestic soybean consumption continues to increase, and mainly grease production amount increases very fast.Monthly supply and demand report display is announced on January 11st, 2011 according to USDA, 2010/2011 annual global soybean oil output will increase by 8.05% on year-on-year basis, consumption will increase by 9.17% on year-on-year basis, all create the all-time new and high, and soybean oil output amplification is not as good as consumption amplification.Soybean oil not only output is huge, and nutritive value is very high, and the lipid acid composition of soybean oil better, is rich in essential fatty acid linolic acid, linolenic acid, also containing a large amount of vitamin-E, vitamins D and abundant Yelkin TTS, is all highly profitable to HUMAN HEALTH.In addition, human consumption's specific absorption of soybean oil, up to 98%, is the excellent edible oil that a kind of nutritive value is very high.
In the too high situation of residual quantity of phospholipid in lipid, in high temperature deodorization workshop section, the poor heat stability of phosphatide, easily hot polymerization coking occurs, become brown material, production practice show, when in grease, phosphorus content reaches more than 5mg/kg, color reversion speed is obviously accelerated.Although phospholipids content index is not listed within soybean oil state quality standard, but residual phosphatide has a great impact the quality of salad oil, use value tool, as color with oil color during fried food deepens blackening very soon, the visual appearance of fried food product and mouthfeel can decline greatly.So be necessary in workshop section of coming unstuck, the phosphatide in grease removed totally as far as possible, then removes further in depickling, decolorization, obtain the grease that residual phosphorus amount is less, thus extend the color reversion time of grease.
Grease is in vacuum deodorization process, and after pyroprocessing, the natural antioxidantss such as tocopherol are subject to destroying in various degree decomposition, causes the stability of processed oil to reduce.Grease is in storage process, and owing to being subject to the impacts such as oxygen, temperature, light, tocopherol generating portion is oxidized, generate tocopherol oxide compound and impel redness and yellow increase, wherein major part is because tocopherol is oxidized to caused by chroman-5,6-quinone, is a kind of deep red material.
The invention provides a kind of 6S1D soybean oil squeezing preparation method, effectively can solve the color reversion problem of soybean oil.
Summary of the invention
For the deficiencies in the prior art, technical problem to be solved by this invention is to provide a kind of 6S1D soybean oil squeezing preparation method.
For achieving the above object, the technology used in the present invention solution is:
A kind of 6S1D soybean oil squeezing preparation method, comprises the following steps:
(1) soybean is pulverized;
(2) squeeze, pressing temperature is 35-55 DEG C;
(3) acid solution adding quality of crude oil 2-8wt% is extremely squeezed in the crude oil obtained, and stirs 25-35min;
(4) precipitate;
(5) filter.
The acid solution of described step (3) is citric acid, lactic acid and the tartaric aqueous solution, and wherein the concentration of citric acid is 0.015-0.035wt%, and the concentration of lactic acid is 0.015-0.035wt%, and tartaric concentration is 0.015-0.035wt%.
The soybean oil that described step (5) obtains first carries out prefiltration with 20,40,60,100 order filter clothes successively, then uses flame filter press to filter, and flame filter press filters employing 180 object filter cloth, and control pressure is 0.2-0.4Mpa.
Concrete, in the present invention:
Citric acid, No. CAS: 77-92-9.
Tartrate, No. CAS: 526-83-0.
Lactic acid, No. CAS: 50-21-5.
A kind of 6S1D soybean oil squeezing of the present invention preparation method (also known as: soybean oil squeezing preparation method), selected Non-transgenic soybean (select), through Soybean Pretreatment (Smash), squeezing (squeeze), come unstuck (degumming), precipitation (sediment), filter (seep), low temperature storage (store) for five times, seven road technical process, because there is the initial of six English words to be that ' S ' starts, 1 starts with " D ", so be called for short " 6S1D ".6S1D soybean oil squeezing preparation method of the present invention; Current traditional soybean oil refinement technique is improved, find out in refining process the major cause causing soybean oil color reversion, significantly reduced by oily phosphorus content after adopting composite acid solution degumming process, not only can obtain the degummed oil that low phosphorus content, low acid value, color are bright, also effectively inhibit the color reversion of soybean oil, simplify refinery practice, reduce energy consumption, reduce industrial waste discharge amount, improve crude oil refining yield, save production cost.
Embodiment
Below in conjunction with embodiment, the present invention is described further, the following stated, only to preferred embodiment of the present invention, not do other forms of restriction to the present invention, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed to the Equivalent embodiments of equal change.Everyly do not depart from the present invention program's content, any simple modification done following examples according to technical spirit of the present invention or equivalent variations, all drop in protection scope of the present invention.
Soybean adopts the Non-transgenic soybean of Hailun City soybean producing region, Heilongjiang Province plantation.
Embodiment 1
A kind of 6S1D soybean oil squeezing preparation method, described preparation method comprises the following steps:
(1) Soybean Pretreatment: the soybean selecting full grains, use clear water to rinse, removal of impurities, polishing is peeled, and dries, and controlling water content in soybean is 13wt%, then is crushed to 20 orders, for subsequent use;
(2) squeeze: adopted by the soybean processed through step (1) Ke Meite (KOMET) cold oil press of German IBG door good fortune (IBGMonforts) company to carry out physics cold press, the temperature of squeezing is 50 DEG C, pressure is 30MPa, the time of pressure process is that pressure (is namely risen to 30MPa from 0 with the 20min time by 15min, per minute pressure increase 2MPa), keep pressure to be 35min in the time of 30MPa, obtain crude oil;
(3) come unstuck: at temperature 65 DEG C, crude oil 10000 revs/min of homogenization treatment 1min (adopt FJ200-SH digital display high speed dispersion clarifixator, Shanghai Sample Model Factory), the acid solution adding quality of crude oil 4.5wt% is more extremely squeezed in the crude oil obtained and (that is: is added 4.5g acid solution in every 100g crude oil), continues 1000 revs/min of stirring reaction 30min; Finally under 4000r/min, centrifugal 30min removal glue is assorted to obtain degummed oil (adopting TDZ5-WS table-type low-speed whizzer, Xiang Yi whizzer Instrument Ltd.);
(4) degummed oil is placed in indoor standing 7 days, the impurity sedimentation in oil gets off, and reaches the effect of pure physics decon;
Filter for (5) five times: after step (4) being left standstill, first carry out prefiltration with 20,40,60,100 order filter clothes successively (that is: first uses 20 order filter cloth prefiltrations to degummed oil, use 40 order filter cloth prefiltrations again, use 60 order filter cloth prefiltrations again, finally use 100 order filter cloth prefiltrations); Then use flame filter press to filter, flame filter press filters employing 180 object filter cloth, and control pressure is 0.3Mpa;
The acid solution of described step (3) is citric acid, lactic acid and the tartaric aqueous solution, and wherein the concentration of citric acid is 0.025wt%, and the concentration of lactic acid is 0.025wt%, and tartaric concentration is 0.025wt%.
Embodiment 2
Extract oil by the preparation method of embodiment 1, difference is only: the acid solution of described step (3) is citric acid and newborn aqueous acid, and wherein the concentration of citric acid is 0.0375wt%, and the concentration of lactic acid is 0.0375wt%.Obtain the soybean oil of embodiment 2.
Embodiment 3
Extract oil by the preparation method of embodiment 1, difference is only: the acid solution of described step (3) is citric acid and the tartaric aqueous solution, and wherein the concentration of citric acid is 0.0375wt%, and tartaric concentration is 0.0375wt%.Obtain the soybean oil of embodiment 3.
Embodiment 4
Extract oil by the preparation method of embodiment 1, difference is only: the acid solution of described step (3) is lactic acid and the tartaric aqueous solution, and wherein the concentration of lactic acid is 0.0375wt%, and tartaric concentration is 0.0375wt%.Obtain the soybean oil of embodiment 4.
Comparative example 1
Extract oil by the preparation method of embodiment 1, but do not carry out step (3) operation, namely degumming process is not carried out to the crude oil that cold press obtains.Obtain the soybean oil of comparative example 1.
Test case 1
Carry out spectrophotometry analysis of phospholipid to the degummed oil obtained after embodiment 1-4 step (3) degumming process, according to GB/T5537-2008, molybdenum blue colorimetric method measures.Concrete outcome is in table 1.
Table 1: degummed oil phospholipids content table
| Phospholipids content, mg/kg | |
| Embodiment 1 | 52.8 |
| Embodiment 2 | 74.0 |
| Embodiment 3 | 71.1 |
| Embodiment 4 | 71.9 |
Test case 2
(the employing of grease color reversion mensuration is carried out to the soybean oil that embodiment 1-4 and comparative example 1 obtain
SMY-2000 colour examining colour-difference-metre, Beijing great reputation raises scientific and technological development limited liability company), oxidation due to soybean oil may promote the change of tocopherol thus cause soybean oil color reversion, so the antioxidant TBHQ to the soybean oil interpolation 200mg/kg that embodiment 1-4 and comparative example 1 obtain, to suppress the oxidation of soybean oil.Color and luster change is in table 2.
Table 2: absorbancy region area table of integral
| 0d | 10d | 20d | 40d | 60d | |
| Embodiment 1 | 0.112 | 0.347 | 0.495 | 0.671 | 0.803 |
| Embodiment 2 | 0.146 | 0.909 | 1.238 | 1.529 | 1.932 |
| Embodiment 3 | 0.137 | 0.817 | 1.094 | 1.419 | 1.761 |
| Embodiment 4 | 0.140 | 0.885 | 1.117 | 1.453 | 1.827 |
| Comparative example 1 | 0.469 | 6.086 | 9.147 | 11.284 | 15.173 |
After comparing embodiment 1-4 and comparative example 1, embodiment 1-4 adopt acid solution to come unstuck, color and luster changes and is far smaller than comparative example 1; Especially, comparing embodiment 1 and embodiment 2-4, embodiment 1 (acid solution adopt citric acid, lactic acid and tartrate composite) color and luster change be significantly less than embodiment 2-4 (acid solution adopt in citric acid, lactic acid and tartrate any two kinds composite).After the soybean oil placement 30d of embodiment 1, color and luster changing value is 0.709, color and luster change does not occur substantially, can effectively reduce phospholipids content in soybean oil, and oxygen barrier is preserved when delaying soybean oil oxidation can effectively delay grease color reversion; Other indexs all meet the parameter value specified in soybean oil standard GB/T 1535-2003 soybean oil and GB2716-2005 edible vegetable oil hygienic standard.
A kind of 6S1D soybean oil squeezing of the present invention preparation method, main to the soybean oil internal composition of grease color reversion such as phosphatide, tocopherol, metal ion and extraneous factor (temperature, illumination, air) etc. may be caused to investigate, find out in refining process the major cause causing soybean oil color reversion, significantly reduced by oily phosphorus content after adopting composite acid solution degumming process, not only can obtain the degummed oil that low phosphorus content, low acid value, color are bright, also effectively inhibit the color reversion of soybean oil; Present invention, avoiding existing soybean oil squeezing process brings the nutritive ingredient such as unsaturated fatty acids, VE to destroy seriously, and avoid the problem such as the healthy materials of harm such as producing propylene chlorohydrin precursor, trans fatty acid and extra interpolation oxidation inhibitor, soybean oil-yielding ratio is high, decreases environmental pollution.
Claims (2)
1. a 6S1D soybean oil squeezing preparation method, is characterized in that, comprise the following steps:
(1) soybean is pulverized;
(2) squeeze, pressing temperature is 35-55 DEG C;
(3) acid solution adding quality of crude oil 2-8wt% is extremely squeezed in the crude oil obtained, and stirs 25-35min;
(4) precipitate;
(5) filter.
The acid solution of squeezing described step (3) is citric acid, lactic acid and the tartaric aqueous solution, and wherein the concentration of citric acid is 0.015-0.035wt%, and the concentration of lactic acid is 0.015-0.035wt%, and tartaric concentration is 0.015-0.035wt%.
2. a kind of 6S1D soybean oil squeezing preparation method as claimed in claim 1, it is characterized in that, the soybean oil that described step (5) obtains first carries out prefiltration with 20,40,60,100 order filter clothes successively, then flame filter press is used to filter, flame filter press filters employing 180 object filter cloth, and control pressure is 0.2-0.4Mpa.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511008175.8A CN105524710A (en) | 2015-12-29 | 2015-12-29 | A squeezing preparing method for 6S1D soybean oil |
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| CN201511008175.8A CN105524710A (en) | 2015-12-29 | 2015-12-29 | A squeezing preparing method for 6S1D soybean oil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106753777A (en) * | 2016-12-12 | 2017-05-31 | 怀化学院 | Heavy fragrant plant oil and method of refining |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106753777A (en) * | 2016-12-12 | 2017-05-31 | 怀化学院 | Heavy fragrant plant oil and method of refining |
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Application publication date: 20160427 |