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Method for reducing content of trichloropropanol in grease and ester thereof

A technology of oil and content, applied in the direction of oil/fat refining, fat production, etc., to achieve the effect of simple and easy operation

Active Publication Date: 2017-01-04
WILMAR SHANGHAI BIOTECH RES & DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] The purpose of the present invention is to provide a kind of technology that reduces chloropropanol or its ester in oil, and this technology can obviously reduce the existing chloropropanol or its ester content in oil, solves the problem of excessive content of chloropropanol or its ester in oil. High problem, reduce its potential harm to the human body

Method used

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  • Method for reducing content of trichloropropanol in grease and ester thereof
  • Method for reducing content of trichloropropanol in grease and ester thereof
  • Method for reducing content of trichloropropanol in grease and ester thereof

Examples

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preparation example Construction

[0108] The preparation method of potassium ascorbate, potassium erythorbate is as follows:

[0109] Mix ascorbic acid or erythorbic acid with potassium bicarbonate molar ratio 1:1.2 and add it into a three-necked flat-bottomed flask, then add a certain amount of water according to the mass concentration of potassium bicarbonate of 20%, react at 55°C for 1 hour under nitrogen, and add no Precipitate with water and ethanol to obtain two phases, take the lower layer of the target product phase and continue to rinse with absolute ethanol twice, and rotary evaporate to obtain a brownish-yellow solid, which is potassium ascorbate and potassium erythorbate.

[0110] The preparation method of potassium ascorbyl palmitate is as follows:

[0111] First add ascorbyl palmitate to 20 times of absolute ethanol and heat up to 50°C to dissolve, then add potassium bicarbonate and a small amount of water according to the molar ratio of ascorbyl palmitate and potassium bicarbonate at 1:2. Keep ...

Embodiment 1-26

[0128] Refined palm oil (purchased from Kerry Special Oils (Shanghai) Co., Ltd.) 2 Stirring and heating to 200°C for 120 minutes and a pressure of 1 bar. After the reaction of the system is finished, the refined palm oil with reduced 3-MCPD ester content is obtained.

[0129]

[0130]

[0131]

[0132] Conclusion: Adding a certain amount of antioxidants such as rosemary extract and α-tocopherol can significantly reduce the content of 3-MCPD ester in RPO; adding a certain amount of antioxidant derivatives such as ascorbate, ascorbyl palmitate, potassium salt of TBHQ and Its fatty acid ester, phytate and its fatty acid ester all can reduce the 3-MCPD ester in the RPO of initial high 3-MCPD ester content, especially the good reduction rate of effect can reach more than 90%; Similarly, antioxidant Mixtures of derivatives also reduced 3-MCPD esters in RPOs initially high in 3-MCPD esters; antioxidant derivatives also reduced 3-MCPD esters in RPOs low in 3-MCPD esters.

Embodiment 27-32

[0134] With refined palm oil (purchased from Kerry Special Oils (Shanghai) Co., Ltd.) as raw material, add 1% potassium ascorbyl palmitate by oil weight, pass N 2 Stir and heat to a certain temperature and react for 120 minutes with a pressure of 1 bar. After the reaction of the system is finished, RPO with reduced 3-MCPD ester content is obtained.

[0135]

[0136] Conclusion: The reduction degree of 3-MCPD ester is different under different temperature. It can be seen from the above data that with the increase of temperature, the reduction degree of 3-MCPD ester first increases and then decreases, and there is an optimal temperature point in the middle.

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Abstract

The invention relates to a method for reducing content of trichloropropanol in grease and ester thereof. The method comprises the steps of causing grease to contact with an antioxidant and / or an antioxidant derivative, wherein the system pressure during the contact is larger than or equal to 0.1 bar, and the antioxidant and / or the antioxidant derivative does not include an organic acid antioxidant. The invention also provides a method for preparing the grease by adopting the means, the grease prepared accordingly and application of the antioxidant and / or the antioxidant derivative to reduction of the content of 3-MCPD in the refined grease or ester thereof. The method has an obvious effect of reducing 3-MCPD ester, there is no requirement for the content of the 3-MCPD ester in the raw materials, the grease production or refining process is not affected, follow-up processing only needs to be performed, and the method is simple to operate and practical.

Description

technical field [0001] The invention relates to a method for reducing the content of trichloropropanol or its esters in fats and oils. Background technique [0002] 3-Chloro-1,2-propanediol (3-MCPD) ester is an ester formed by connecting a single hydroxyl group or two hydroxyl groups in 3-chloro-1,2-propanediol to long-chain fatty acids. In recent years, researchers have found 3-chloropropanediol esters in many foods, such as bread, coffee, refined vegetable oil, infant milk powder, salty crackers, malt products, French fries, donuts, pickled olives and herring. Among them, the diester content is more, accounting for 85% of the total, and the monoester accounts for up to 15%. In 2008, 3-MCPD esters were also detected in breast milk, with a content of <300-2195 μg / kg fat or 6-76 μg / kg breast milk, indicating that 3-MCPD esters can be absorbed by the body and distributed to various tissues and organs of the body. organ. [0003] During 2006-2008, German scholar Weisshaa...

Claims

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Application Information

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IPC IPC(8): C11B3/02
Inventor 张敏张海王任勋王勇姜元荣
Owner WILMAR SHANGHAI BIOTECH RES & DEV CENT
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