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A water extraction process for edible oil

An edible oil and process technology, applied in the production of fat/fat, fat production, etc., can solve the problem of leaching oil not being recognized by consumers, and achieve the effects of easy operation, simple separation, and improved oil yield

Inactive Publication Date: 2018-12-14
苗昊宇 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is precisely because of the residual n-hexane that the leaching oil is not recognized by consumers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 1) Crush the soybeans, mix them according to the mass ratio of soybeans and pure water 1:4.7, and stir for 12 minutes. The temperature of the pure water is 60°C; then add decaglycerol palmitate and hexaglycerol monolaurate with 1% pure water quality A composite surfactant mixed with acid esters at a mass ratio of 77:23 was stirred for 15 minutes and left to stand, and solid-liquid separation was carried out after standing to obtain oil-water mixture and water-containing soybean dregs;

[0019] 2) The water-containing soybean dregs obtained in step 1) are added to a juicer, and the push rod of the juicer is pressed down to squeeze out the water in the water-containing soybean dregs to obtain deoiled soybean cakes; the oil-water mixture obtained in step 1) is Stand for stratification, separate the oil layer by the liquid separation process to obtain soybean oil, and return the water squeezed out by the juicer and the water separated by the liquid separation process to step...

Embodiment 2

[0021] 1) Crush the soybeans, mix them according to the mass ratio of soybeans and pure water 1:5.2, and stir for 12.5 minutes. The temperature of the pure water is 65°C; The composite surfactant mixed with lauric acid ester at a mass ratio of 76:24 was stirred for 16 minutes and then left to stand, and after standing, solid-liquid separation was carried out to obtain oil-water mixture and water-containing soybean dregs;

[0022] 2) The water-containing soybean dregs obtained in step 1) are added to a juicer, and the push rod of the juicer is pressed down to squeeze out the water in the water-containing soybean dregs to obtain deoiled soybean cakes; the oil-water mixture obtained in step 1) is Stand for stratification, separate the oil layer by the liquid separation process to obtain soybean oil, and return the water squeezed out by the juicer and the water separated by the liquid separation process to step 1) for reuse; the average oil yield in this example is calculated to re...

Embodiment 3

[0024] 1) Crush the soybeans, mix them according to the mass ratio of soybeans and pure water 1:4.2, and stir for 13 minutes. The temperature of the pure water is 55°C; then add ten polyglycerol palmitate and hexapolyglycerol monolaurate in pure water quality 1.1% A composite surfactant mixed with acid esters at a mass ratio of 78:22 was stirred for 15.5 minutes and then left to stand. After standing, solid-liquid separation was carried out to obtain oil-water mixture and water-containing soybean dregs;

[0025] 2) The water-containing soybean dregs obtained in step 1) are added to a juicer, and the push rod of the juicer is pressed down to squeeze out the water in the water-containing soybean dregs to obtain deoiled soybean cakes; the oil-water mixture obtained in step 1) is Stand for stratification, separate the oil layer by the liquid separation process to obtain soybean oil, and return the water squeezed out by the juicer and the water separated by the liquid separation pro...

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PUM

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Abstract

A water extraction process for edible oil is provided, belonging to the technical field of edible oil preparation. The process is characterized in that the process includes a step of crushing an oil-bearing material, mixing the oil-bearing material and pure water in a mass ratio of 1:3.5-6.5, then stirring the mixture for 12-18 min, adding a composite surfactant formed by mixing polyglyceryl-10 palmitate and polyglyceryl-6 monolaurate in a mass ratio of 73-82:18-27, with the mass of the composite surfactant being 0.7-1.3% of the mass of the pure water, stirring the mixture for 15-18 min, allowing the mixture to stand, and then performing solid-liquid separation to obtain an oil-water mixture and water-containing oil-bearing material dregs; a step of adding the dregs into a juicer, and squeezing the water in the dregs out through extrusion by a pushing bar of the juicer to obtain oil-bearing material cake; and a step of allowing the oil-water mixture to stand and layer, and separating an oil layer through a liquid separation process to obtain oil. The water extraction process enables more sufficient leaching of oil so that the oil yield is greatly increased, and the oil-bearing material is leached with the pure water, thus ensuring safety and no toxicity.

Description

technical field [0001] The invention discloses an edible oil water extraction process, which belongs to the technical field of edible oil preparation. Background technique [0002] There are mainly two methods of oil extraction: pressing and leaching. Although the quality of the pressed oil is high, the oil yield is low, and a large amount of oil remains in the pressed waste. Moreover, in the process of pressing out the oil, a high-temperature heating process is generally required, and the protein components contained in the pressing waste will be carried during the process, causing damage. Affects the nutritional value of press waste used as feed. Most of the current oil extraction methods use n-hexane to extract the oil, and the use of n-hexane will cause n-hexane residues to remain in edible oils and fats. Although n-hexane is of low toxicity, it is more toxic than neohexane, and has high volatility, high fat solubility, and accumulation. The toxic effect is a mild in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/04C11B1/06C11B1/10
CPCC11B1/04C11B1/06C11B1/10C11B1/108
Inventor 杨勇苗昊宇王吟箫
Owner 苗昊宇