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Rapeseed oil production process

A production process and technology of rapeseed oil, applied in the production of fat oil/fat, production of fat, essential oil/spice, etc., can solve the problems of toxic residues, pollution, low oil yield, etc., achieve high-quality grades, improve output The effect of improving the oil rate and improving the ability of adsorbing toxic and harmful substances

Inactive Publication Date: 2013-02-27
李学超
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing rapeseed oil is fried and pressed, or extracted with organic solvents, or supercritically extracted, etc., all of which have problems such as organic solvent pollution, low oil yield, and toxic residues to varying degrees.

Method used

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Examples

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Embodiment Construction

[0025] A kind of production technology of rapeseed oil, comprises the following steps:

[0026] (1) Clean the rapeseed and dry it until the water content is 5-8%;

[0027] (2) Send it to the cold storage for 16-18 hours, the temperature of the cold storage is -25- -20°C; after taking it out, send it to the tunnel drying room for drying, the temperature of the drying room is 50-60°C, The time is 5-6 hours; repeated several times;

[0028] (3) Grind the rapeseed with water, add 0.3-0.5% salt to the water, separate the oil and water, and separate the primary ground rapeseed oil;

[0029] (4), the separated rapeseed residue is washed with water several times, and incorporated into the step (3) for refining, and the oil-water layer is carried out;

[0030] (5) The washed rapeseed dregs are dried at 50-60°C until the water content is 15-18%, and mixed with 10-20 mesh coarse powder of rapeseed hulls equivalent to 3-5% of the weight of rapeseed dregs (or not plus), enter and then e...

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PUM

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Abstract

The present invention discloses a rapeseed oil production process, wherein rapeseed is subjected to impurity removing through a cleaning sieve, and then is subjected to a freezing treatment to carry out wall breaking so as to easily achieve oil leaching. According to the present invention, a levigation process is adopted, and decoloration adopts a specially-treated absorbent; processes of freezing and heating are sequentially performed, such that wall breaking of rapeseed cells is easily achieved, and an oil yield of the production process of the present invention is increased, and is increased by 5-8% compared with an oil yield of the conventional pressing method; and the levigation process is adopted to take oil, such that no pollution is generated, oil product purity is ensured, a pure nature characteristic is provided, and green food requirements are met.

Description

technical field [0001] The invention relates to the field of rapeseed oil production, in particular to a rapeseed oil production process. Background technique [0002] Rapeseed oil, commonly known as rapeseed oil, is also called coriander oil. It is a transparent or translucent liquid obtained by pressing rapeseed. It is one of the main edible oils in my country. It is mainly produced in the Yangtze River Basin, Southwest, Northwest and other places. The world's first, the human body's absorption rate of rapeseed oil is very high, up to 99%. Therefore, the unsaturated fatty acids such as linoleic acid and vitamin E and other nutrients contained in it can be well absorbed by the body, and have certain effects of softening blood vessels and delaying aging. Existing rapeseed oil is fried and then squeezed, or extracted with organic solvents, or supercritically extracted, etc., all of which have problems such as organic solvent pollution, low oil yield, and toxic residues to var...

Claims

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Application Information

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IPC IPC(8): C11B1/04C11B1/06C11B3/14C11B3/16C11B3/10C11B9/02
Inventor 李学超
Owner 李学超
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