CN102839048B - Method for reducing color of soybean oil through synergistic effect of monochromatic light and activated clay - Google Patents
Method for reducing color of soybean oil through synergistic effect of monochromatic light and activated clay Download PDFInfo
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- CN102839048B CN102839048B CN201210330803.4A CN201210330803A CN102839048B CN 102839048 B CN102839048 B CN 102839048B CN 201210330803 A CN201210330803 A CN 201210330803A CN 102839048 B CN102839048 B CN 102839048B
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Abstract
The invention provides a method for reducing a color of soybean oil through a synergistic effect of a monochromatic light and activated clay. The method solves problems that organic pigments are easily transformed into other color matters during a temperature rise process in a grease discoloring process, and newly-generated pigments are hard to be removed, and a large number of the activated clay is consumed. The method adopts a two-sectional type discoloring method, which means that colorful matters, such as carotenoid is removed by being irradiated by sunshine of VIS-450, and then is pre-processed via regeneration activated clay to remove newly-generated pigments during a monochromatic light irradiating process. The carotenoid has various variation rules due to influences of different factors. Factors of oxygen, light and heat and the like can produce a destructive effect to stability of the carotenoid, thus, the color of grease can be reduced; and moreover, a light absorbing value of the carotenoid under VIS-450 can reach the maximum value nearly, so a VIS-450 visible light is served as a discoloring condition; the visible light brings a small oxidizing degree to soybean oil, thus, a larger influence to quality of the soybean oil can be avoided, and a discoloring rate can be improved.
Description
Technical field
The present invention relates to food oils manufacture field, be specifically related to the method that monochromatic ray in oil alkali refining process and atlapulgite decolour for bleaching process.
Background technology
In grease-decolor process, organic pigment is easily converted into other color and luster materials in temperature elevation process, and these newly-generated pigments are difficult to remove, and can consume a large amount of atlapulgites simultaneously.The present invention adopts the method for two-part decolouring, both first with VIS-450 sun exposure, removes the coloring matters such as carotenoid, and recycling the Regeneration Bleaching Clay carries out pretreated mode, removes pigment newly-generated in monochromatic ray irradiation process.
Carotenoid is subject to the impact of different factors, causes it to occur different Changing Patterns.Wherein the factor such as oxygen, light, heat all can produce damaging influence to the stability of carotenoid, thereby reduces the color and luster of grease.And carotenoid almost reaches maximum at VIS-450 place light absorption value.Therefore selecting VIS-450 visible ray is decolorization condition, and visible ray is little to soybean oil degree of oxidation, can not affect greatly soybean oil quality, and percent of decolourization increases.
Summary of the invention
In order to overcome the defect of conventional decolouring production soybean oil, reduce the consumption of carclazyte, adapt to modern technologies development, meet the demand in market, we have proposed a kind of improved decoloring method:
Soybean oil lucifuge is placed, under optical wavelength VIS-450, carry out rayed, at strength of current 17-25A, carry out decoloring reaction, reaction times is at 15-25min, temperature of reaction, at 70 ℃-90 ℃, adds oil to weigh 0.5% atlapulgite, stirring velocity 70-90r/min under same test conditions after to be illuminated completing, then get upper strata bleached oil, survey its color and luster;
Useful point of the present invention is:
1, application daylight irradiates, and then has reduced oil loss, and decolorizing effect and oil quality are better.
2, the consumption that reduces carclazyte in decolorization, effectively reduces the carclazyte taste in grease, reduces environmental pollution, improves factory's operating environment, facilitates the follow-up refining of soybean oil, has saved clay treatment expense simultaneously.
Step of the present invention is as follows:
Step 1: raw material lucifuge is placed, and with VIS-450 daylight, soybean oil is irradiated, and removes variable pigment in grease;
Step 2: add oil to weigh 0.5% atlapulgite in a certain amount of soybean oil, select 5-25A strength of current, at certain temperature and stirring velocity, stir for some time and carry out decoloring reaction, then with 5000r/min centrifugation 10min, get upper strata bleached oil, survey its color and luster, determine strength of current;
Step 3: add oil to weigh 0.5% atlapulgite in a certain amount of soybean oil, select 50-100 ℃ of bleaching temperature, stir for some time and carry out decoloring reaction under certain stirring velocity, then with 5000r/min centrifugation 10min, get upper strata bleached oil, survey its color and luster, determine bleaching temperature;
Step 4: add oil to weigh 0.5% atlapulgite in a certain amount of soybean oil, select 5-30min bleaching time, stir at a certain temperature, carry out decoloring reaction, then, with 5000r/min centrifugation 10min, get upper strata bleached oil, survey its color and luster, determine bleaching time;
Step 5: add oil to weigh 0.5% atlapulgite in a certain amount of soybean oil, under the condition of definite temperature and time, select 40-90r/min stirring velocity, carry out decoloring reaction, then, with 5000r/min centrifugation 10min, get upper strata bleached oil, survey its color and luster, determine stirring velocity;
Key of the present invention is determining of decolorization condition, comprises that electric current is slight, bleaching time, temperature and stirring velocity.According to optimal processing parameter test, obtain bleached oil, survey its percent of decolourization 97.8%, also proved carclazyte and the synergistic effect of light simultaneously.
Embodiment:
Embodiment one: the step of present embodiment is as follows:
Step 1: raw material lucifuge is placed, and with VIS-450 daylight, soybean oil is irradiated, and removes variable pigment in grease;
Step 2: add oil to weigh 0.5% atlapulgite in a certain amount of soybean oil, select 5-25A strength of current, at certain temperature and stirring velocity, stir for some time and carry out decoloring reaction, then with 5000r/min centrifugation 10min, get upper strata bleached oil, survey its color and luster, determine strength of current;
Step 3: add oil to weigh 0.5% atlapulgite in a certain amount of soybean oil, select 50-100 ℃ of bleaching temperature, stir for some time and carry out decoloring reaction under certain stirring velocity, then with 5000r/min centrifugation 10min, get upper strata bleached oil, survey its color and luster, determine bleaching temperature;
Step 4: add oil to weigh 0.5% atlapulgite in a certain amount of soybean oil, select 5-30min bleaching time, stir at a certain temperature, carry out decoloring reaction, then, with 5000r/min centrifugation 10min, get upper strata bleached oil, survey its color and luster, determine bleaching temperature;
Step 5: add oil to weigh 0.5% atlapulgite in a certain amount of soybean oil, under the condition of definite temperature and time, select 40-90r/min stirring velocity, carry out decoloring reaction, then, with 5000r/min centrifugation 10min, get upper strata bleached oil, survey its color and luster, determine stirring velocity;
Specific implementation method two: this implementation method is that with specific implementation method one difference in step 2, strength of current is 17-25A, and other composition and step are identical with specific implementation method one;
Specific implementation method three: this implementation method is to select different bleaching temperature 70-90 ℃ in step 3 from specific implementation method one difference, and other composition and step are identical with specific implementation method one;
Specific implementation method four: this implementation method is to select different bleaching time 15-25min in step 4 from specific implementation method one difference, and other composition and step are identical with specific implementation method one;
Specific implementation method five: this implementation method is to select different stirring velocity 70-90r/min in step 5 from specific implementation method one difference, and other composition and step are identical with specific implementation method one.
Claims (1)
1. monochromatic ray and atlapulgite act synergistically to reduce a method for soybean oil color and luster, it is characterized in that its step is as follows:
Step 1: raw material lucifuge is placed, and carries out rayed under optical wavelength VIS-450, carries out decoloring reaction at strength of current 17-25A, and the reaction times, temperature of reaction removed variable pigment at 70 ℃-90 ℃ at 15-25min;
Step 2: add oil to weigh 0.5% atlapulgite in a certain amount of soybean oil and carry out 2 decolourings, select 5-25A strength of current, at certain temperature and stirring velocity, stir for some time and carry out decoloring reaction, then with 5000r/min centrifugation 10min, get upper strata bleached oil, survey its color and luster, determine strength of current;
Step 3: add oil to weigh 0.5% atlapulgite in a certain amount of soybean oil, select 50-100 ℃ of bleaching temperature, stir for some time and carry out decoloring reaction under certain stirring velocity, then with 5000r/min centrifugation 10min, get upper strata bleached oil, survey its color and luster, determine bleaching temperature;
Step 4: add oil to weigh 0.5% atlapulgite in a certain amount of soybean oil, select 5-30min bleaching time, stir at a certain temperature, carry out decoloring reaction, then, with 5000r/min centrifugation 10min, get upper strata bleached oil, survey its color and luster, determine bleaching time;
Step 5: add oil to weigh 0.5% atlapulgite in a certain amount of soybean oil, under the condition of definite temperature and time, select 40-90r/min stirring velocity, carry out decoloring reaction, then, with 5000r/min centrifugation 10min, get upper strata bleached oil, survey its color and luster, determine stirring velocity.
2. a kind of monochromatic ray according to claim 1 and atlapulgite act synergistically to reduce the method for soybean oil color and luster, it is characterized in that strength of current 21A in step 2.
3. a kind of monochromatic ray according to claim 1 and atlapulgite act synergistically to reduce the method for soybean oil color and luster, it is characterized in that in step 3 80 ℃ of temperature.
4. a kind of monochromatic ray according to claim 1 and atlapulgite act synergistically to reduce the method for soybean oil color and luster, it is characterized in that time 20min in step 4.
5. a kind of monochromatic ray according to claim 1 and atlapulgite act synergistically to reduce the method for soybean oil color and luster, it is characterized in that stirring velocity 80r/min in step 5.
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| CN201210330803.4A CN102839048B (en) | 2012-09-10 | 2012-09-10 | Method for reducing color of soybean oil through synergistic effect of monochromatic light and activated clay |
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| CN201210330803.4A CN102839048B (en) | 2012-09-10 | 2012-09-10 | Method for reducing color of soybean oil through synergistic effect of monochromatic light and activated clay |
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| CN102839048B true CN102839048B (en) | 2014-11-12 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103602520A (en) * | 2013-10-15 | 2014-02-26 | 哈尔滨商业大学 | Method for reducing color of soybean oil by using synergistic effect of monochromatic light and attapulgite |
| CN106032489A (en) * | 2015-03-16 | 2016-10-19 | 佳格食品股份有限公司 | Device and method to reduce colour and luster of oil |
| CN104877755A (en) * | 2015-05-07 | 2015-09-02 | 余庆县土司风味食品有限责任公司 | Processing method for high-quality soybean oil |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101906354A (en) * | 2010-08-06 | 2010-12-08 | 中国林业科学研究院林产化学工业研究所 | A kind of method of preparing high-quality colorless lacquer wax quickly by ultraviolet decoloring |
| CN102492548A (en) * | 2011-10-28 | 2012-06-13 | 东北农业大学 | Novel method for producing soybean oil based on moderate clay decoloring and high temperature treatment |
| CN102517142A (en) * | 2011-12-20 | 2012-06-27 | 山东渤海实业股份有限公司 | Zero trans-fatty acid multi-vitamin first-grade soybean oil and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906354A (en) * | 2010-08-06 | 2010-12-08 | 中国林业科学研究院林产化学工业研究所 | A kind of method of preparing high-quality colorless lacquer wax quickly by ultraviolet decoloring |
| CN102492548A (en) * | 2011-10-28 | 2012-06-13 | 东北农业大学 | Novel method for producing soybean oil based on moderate clay decoloring and high temperature treatment |
| CN102517142A (en) * | 2011-12-20 | 2012-06-27 | 山东渤海实业股份有限公司 | Zero trans-fatty acid multi-vitamin first-grade soybean oil and preparation method thereof |
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Inventor after: Jiang Lianzhou Inventor after: Zou Xiaoyu Inventor after: Li Jun Inventor after: Liang Baosheng Inventor after: Du Huanan Inventor after: Xu Duoxian Inventor after: Qi Xiaofen Inventor after: Yu Dianyu Inventor after: Li Baochang Inventor after: Wang Junguo Inventor after: Wang Liqi Inventor after: Zhang Chunyan Inventor after: Song Peng Inventor after: Wang Yue Inventor after: Li Wanzhen Inventor before: Yu Dianyu Inventor before: Song Yunhua Inventor before: Zou Xiaoyu Inventor before: Jiang Lianzhou Inventor before: Li Baochang Inventor before: Wang Junguo Inventor before: Liu Xin Inventor before: Zhang Chunyan Inventor before: Song Peng Inventor before: Wang Yue Inventor before: Li Wanzhen |
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