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Edible oil plasticizer removing method

A technology for edible oil and plasticizer, which is applied in the field of removing impurities in edible oil and removing plasticizer in edible oil, achieving the effects of low cost, low cost and simple method

Inactive Publication Date: 2015-06-17
HENAN YALINJIE BIOLOGICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no method that can effectively remove plasticizers in edible oils

Method used

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  • Edible oil plasticizer removing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] ①Material mixing: Weigh 500kg of peanut oil (the residual amount of DBP is 0.93 mg / kg, the content of BBP is 0.35 mg / kg, and the content of DiDP is 0.52 mg / kg after testing the plasticizer index), add an equivalent amount of methanol, and use The pump pumps the peanut oil from the lower part of the extraction tank to the upper part of the tank, sprays it on the methanol layer, and the metered peanut oil is circulated 20 times;

[0017] ②Material separation: then stand still for 5 hours to allow the peanut oil and methanol to separate completely in layers;

[0018] ③Desolventization of edible oil: Use a pump to pump peanut oil into the precipitation tank, heat the peanut oil to vaporize part of the methanol dissolved in the oil and separate it from the oil;

[0019] ④Methanol recovery: The separated methanol gas enters the methanol condenser, condenses into a liquid and then flows into the methanol storage tank for recycling. After all the peanut oil in the extrac...

Embodiment 2

[0022] ①Material mixing: Weigh 500kg of peanut oil (after testing the plasticizer index, it is found that the residual amount of DBP is 0.63 mg / kg, the content of BBP is 0.15 mg / kg, and the content of DiDP is 0.22 mg / kg), add 2 times the weight of methanol, Use a pump to pump peanut oil from the lower part of the extraction tank to the upper part of the tank, spray it on the methanol layer, and measure the peanut oil to be circulated 15 times;

[0023] ②Material separation: then stand still for 10 hours to allow the peanut oil and methanol to separate completely in layers;

[0024] ③Desolventization of edible oil: Use a pump to pump peanut oil into the precipitation tank, heat the peanut oil to vaporize part of the methanol dissolved in the oil and separate it from the oil;

[0025] ④Methanol recovery: The separated methanol gas enters the methanol condenser, condenses into a liquid and then flows into the methanol storage tank for recycling. After all the peanut oil in...

Embodiment 3

[0028] ①Material mixing: Weigh 500kg of rapeseed oil (the residual amount of DBP is 0.56 mg / kg, the content of BBP is 0.32 mg / kg, and the content of DiDP is 0.38 mg / kg after testing the plasticizer index), add 5 times the weight of For methanol, the rapeseed oil is pumped from the lower part of the extraction tank to the upper part of the tank, sprayed onto the methanol layer, and the metered rapeseed oil is circulated 15 times;

[0029] ②Material separation: then stand still for 10 hours to allow the peanut oil and methanol to separate completely in layers;

[0030] ③ Edible oil desolventization: Pump the rapeseed oil into the desolventization tank, heat the rapeseed oil to vaporize part of the methanol dissolved in the oil and separate it from the oil;

[0031] ④Methanol recovery: The separated methanol gas enters the methanol condenser, condenses into a liquid and then flows into the methanol storage tank for recycling. After all the rapeseed oil in the extraction tank...

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Abstract

The present invention discloses an edible oil plasticizer removing method which belongs to the technical field of edible oil processing and food safety. The plasticizer removing method uses methanol as solvent, conducts liquid-liquid extraction for the edible oil and separates the methanol and the edible oil after extraction. The plasticizer removing method has high removal efficiency and no plasticizer compositions are detected in the treated edible oils. The plasticizer removing method almost has no effect on other ingredients in the edible oils and the appearance, color, and physical and chemical properties of the treated edible oils are not changed. Besides, the removing method has fast-rate processing and low cost.

Description

technical field [0001] The invention relates to a method for removing impurities in edible oil, in particular to a method for removing plasticizers in edible oil, and belongs to the technical fields of edible oil processing and food safety. Background technique [0002] Plasticizers are phthalates. Phthalates, as plasticizers and softeners for polyvinyl chloride plastics (PVC), are widely used in plastics, and are also widely used in insect repellents, insecticide carriers, cosmetics, synthetic rubber, lubricants , Additives for printing inks, etc. It is an important class of compounds in environmental hormones. Commonly used plasticizers are dimethyl phthalate (DMP), diethyl phthalate (DEP), dipropyl phthalate (DPP), dibutyl phthalate (DnBP), diisobutyl phthalate (DiBP), butyl benzyl phthalate (BBP), dihexyl phthalate (DHP ), dioctyl phthalate DnOP, (2-ethylhexyl) phthalate (DEHP), diisononyl phthalate (DiNP), diisodecyl phthalate (DiDP). [0003] Plasticizers can be m...

Claims

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Application Information

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IPC IPC(8): A23D7/005A23D9/007
Inventor 祁鲲杨倩
Owner HENAN YALINJIE BIOLOGICAL TECH
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