Method for controlling glycidyl ester in grease

A technology of glycidol and fat, which is applied in the direction of edible oil/fat, fat production, fat oil/fat refining, etc., to achieve the effect of industrial scale production and increase factory cost

Inactive Publication Date: 2013-04-24
WILMAR SHANGHAI BIOTECH RES & DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] In summary, it is necessary to improve t

Method used

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  • Method for controlling glycidyl ester in grease
  • Method for controlling glycidyl ester in grease
  • Method for controlling glycidyl ester in grease

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] Embodiment 1: dry degumming VS. water washing degumming

[0082] Crude palm oil: See Table 1 for quality

[0083] Activated clay: Taiko Supreme 1B (PH=6.23, H 2 SO 4 activation)

[0084] The process flow is as follows:

[0085] Take crude palm oil as follows:

[0086] 1. Degumming: in two ways

[0087] Dry degumming: add 0.5% oily heavy citric acid (made into a 50% mass concentration solution) to the oil, keep vacuum stirring at 75°C for 30 minutes, then centrifuge to get the light phase;

[0088] Water elution and degumming: add 0.5% oily heavy citric acid (to make a 50% mass concentration solution) and 10% oily heavy pure water into the oil, stir at 75°C for 30 minutes, then centrifuge to get the light phase;

[0089] 2. Alkali refining: at 80°C, add alkali solution, stir from fast to slow, react for 30 minutes, centrifuge to take the light phase; the amount of alkali added = 7.13×10 -4 × oil weight × acid value × (1+ super-alkali content), the super-alkali con...

Embodiment 2

[0097] Embodiment 2: the activated clay contrast of different pH values

[0098] Crude palm oil: See Table 1 for quality

[0099] Activated clay: Tonsil 212FF, Taiko Supreme 1B, B-80

[0100] The process flow is as follows:

[0101] Take crude palm oil as follows:

[0102] 1. Degumming: Acidified water elution Degumming: Add 0.5% oily heavy citric acid (made into a 50% mass concentration solution) and 10% oily pure water to the oil, stir at 75°C for 30 minutes, then centrifuge to get the light phase;

[0103] 2. Alkali refining: at 80°C, add alkali solution, stir from fast to slow, react for 30 minutes, centrifuge to take the light phase; the amount of alkali added = 7.13×10 -4 × oil weight × acid value × (1+ super-alkali content), the super-alkali content is 20%, and the concentration of lye is 14%;

[0104] 3. Soap removal: Stir with 20% oil-heavy deionized water at 85°C for 15 minutes. The deionized water needs to be preheated to 85°C, and then centrifuged to take the upp...

Embodiment 3

[0111] Embodiment 3: Comparative experiment of different citric acid crystal addition amounts (added to the deodorization section)

[0112] Crude palm oil: See Table 1 for quality

[0113] Activated clay: Taiko Supreme 1B

[0114] The process flow is as follows:

[0115] Take crude palm oil as follows:

[0116] 1. Degumming: Acidified water elution Degumming: Add 0.5% oily heavy citric acid (made into a 50% mass concentration solution) and 10% oily pure water to the oil, stir at 75°C for 30 minutes, then centrifuge to get the light phase;

[0117] 2. Alkali refining: at 80°C, add alkali solution, stir from fast to slow, react for 30 minutes, centrifuge to take the light phase; the amount of alkali added = 7.13×10 -4 × oil weight × acid value × (1+ super-alkali content), the super-alkali content is 20%, and the concentration of lye is 14%;

[0118] 3. Soap removal: Stir with 20% oil-heavy deionized water at 85°C for 15 minutes. The deionized water needs to be preheated to 8...

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Abstract

The invention relates to a method for controlling glycidyl ester in grease and the grease obtained by the method. The method for controlling glycidyl ester in grease is characterized in that a proper amount of citric acid crystals or solution can be added in bleached oil and the final deodorization is carried out. The method provided by the invention greatly reduces the content of glycidol and/or its ester in refined grease.

Description

technical field [0001] The invention belongs to the field of edible oil processing, and in particular relates to an improved edible oil processing method. Background technique [0002] Glycidol (Glycidol), scientific name: glycidol or 2,3-epoxy-1-propanol, is a colorless and transparent liquid with a wide range of industrial uses. After long-term animal experiments, in 2000, it was defined by IRAC (International Agency for Research on Cancer) and DFG (German Safety Evaluation Organization) as a possible hereditary carcinogen to humans. In addition, the nervous system of the human body will also be affected by it. [0003] Glycidyl ester (Glycidol ester or Glycidyl ester) usually appears in food in the form of monoester, so it is very easy to think that it will be rapidly hydrolyzed into free glycidol under the action of human intestinal enzymes, which will pose a safety risk to the human body. Although there is still no effective safety assessment conclusion yet, some safe...

Claims

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Application Information

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IPC IPC(8): C11B3/04C11B3/00C11B3/06C11B3/10A23D9/04
Inventor 骆威姜元荣王勇刘叶挺
Owner WILMAR SHANGHAI BIOTECH RES & DEV CENT
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