Method for reducing 3-MCPD ester and/or glycidyl ester in oil

A technology for glycidyl esters and oils, which is applied in the field of reducing 3-MCPD esters and/or glycidyl esters in oils, and can solve the problems of reduced oil yield and low oil yield

Active Publication Date: 2015-06-10
WILMAR SHANGHAI BIOTECH RES & DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Acidified water washing and degumming will produce a large amount of sewage and lead to low oil yield; the use of organic solvents, such as alcohol washing, will bring diffic

Method used

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  • Method for reducing 3-MCPD ester and/or glycidyl ester in oil
  • Method for reducing 3-MCPD ester and/or glycidyl ester in oil

Examples

Experimental program
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Effect test

Embodiment 1

[0178] 3-MCPD ester and glycidyl ester in embodiment 1, common refined oil

[0179] 1. Degumming: Take 1000g of refined palm oil, add citric acid solution (50wt%) of 0.5% oil weight, stir at 80°C for 30 minutes, centrifuge at 4500rpm for 10 minutes, collect the oil phase, and obtain degummed oil;

[0180] 2. Alkali refining: Add NaOH solution (concentration 15%) to the degummed oil, until the excess alkali is 20%, that is, a total of 53.04g solution is added; after stirring at 80°C for 30 minutes, wash the oil phase with hot water with 20% oil weight To neutrality, centrifuge at 4500rpm for 15 minutes each time; then vacuum dry (90°C) for 10 minutes to obtain desoaped oil;

[0181] 3. Decolorization: Add Taiko Supreme1B (Taiko PGEO and SBE Gold) with 1wt% oil weight to the desoaped oil at 105°C, keep vacuum (25mbr) and stir for 30 minutes, and suction filter while it is hot (50°C) to obtain decolorized oil;

[0182] 4. Deodorization: Use nitrogen gas as the deodorization medi...

Embodiment 2

[0184] Embodiment 2, the effect of adding rosemary extract on 3-MCPD ester and glycidyl ester in deodorization section

[0185] According to the method in Example 1, the decolorized oil was prepared.

[0186] Add 6% rosemary extract of oily weight (purchased from Kalsec company) to the decolorized oil while stirring, then feed nitrogen as a deodorizing medium, and keep it for 1 hour at a vacuum of 10-20mbar at 240°C. ℃ to break the vacuum, and stop nitrogen, and collect refined palm oil 2.

[0187] After testing, the 3-MCPD ester content in the obtained refined palm oil 2 was 0.43ppm, and the glycidyl ester content was 0.33ppm.

Embodiment 3

[0188] Embodiment 3, the effect of adding natural α-tocopherol on 3-MCPD ester and glycidyl ester in the deodorization section

[0189] According to the method in Example 1, the decolorized oil was prepared.

[0190] Add 6% natural alpha-tocopherol (purchased from DSM) to the decolorized oil while stirring, then feed nitrogen as a deodorizing medium, and keep it for 1 hour at a vacuum of 10-20mbar at 240°C , the vacuum was broken at 50° C., and the nitrogen flow was stopped, and refined palm oil 3 was collected.

[0191] After testing, the 3-MCPD ester content in the obtained refined palm oil 3 was 1.76ppm, and the glycidyl ester content was 0.16ppm.

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Abstract

The invention provides a method for reducing 3-MCPD ester and/or glycidyl ester in oil, an oil processing method, oil with a low 3-MCPD ester and/or glycidyl ester content, oil for deodorization treatment, application of an antioxidant to preparing oil with a low 3-MCPD ester and/or glycidyl ester content, and an oil composition. The oil processing method provided by the invention comprises the following steps: adding one or more antioxidants into oil after the oil is decolorized or before the oil is deodorized, and then performing deodorization. Through the adoption of the methods provided by the invention, the oil with a low 3-MCPD ester and/or glycidyl ester content and the corresponding oil composition can be obtained.

Description

technical field [0001] The invention belongs to the field of oil processing, in particular to a method for reducing 3-MCPD ester and / or glycidyl ester in oil. Background technique [0002] Both 3-chloropropanediol (3-MCPD) and glycidol (Glycidol) are internationally recognized strong genetic carcinogens. As early as 1978, Italian scholar Velisek et al. (Z.Lebensm.Unters.Forsch., 1978,167,241-244) reported the existence of free 3-chloropropanol in products such as hydrolyzed vegetable protein and soy sauce. Health poses a great safety risk, and countries all over the world immediately began to control and formulate corresponding safety regulations: 1mg / L in China, 1mg / L in the United States, 1mg / L in Canada, 20μg / L in the European Union, and 10μg / L in the United Kingdom. With the deepening of research, researchers also found that these two substances are commonly found in various daily heat-processed foods, such as baked foods. In 2001, the European Union stipulated that th...

Claims

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Application Information

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IPC IPC(8): C11B3/00C11B3/02C11B3/04C11B3/06C11B3/10C11B3/14
Inventor 张海孙周平王勇姜元荣
Owner WILMAR SHANGHAI BIOTECH RES & DEV CENT
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