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Raw material oil pressing process with separated rapeseed shell and kernels

A technology of rapeseed shell and process, which is applied in the field of rapeseed raw material oil extraction process, can solve the problems of unfavorable leaching oil production, difficult solvent penetration, excessive volume, etc., and achieve low cost of oil production, high product quality, and low cost. The effect of high product value

Inactive Publication Date: 2003-11-26
罗永宗
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  • Summary
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  • Application Information

AI Technical Summary

Problems solved by technology

The pre-pressed cake has not been processed, the structure is compact, and the volume is too large, which is not conducive to leaching and oil production. Due to the difficulty of solvent penetration, the residual oil in the meal is at least 1% and is not stable enough.

Method used

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Embodiment Construction

[0016] Rapeseeds are first graded by a grading sieve and then sent to a conditioning machine, heated to 40-90°C, and then cooled by strong wind to below 30°C. The conditioned rapeseed is sent to the toothed roller sheller for shelling, and then passed through a vibrating screen and air separator to separate the shells and kernels. The husks are leached directly to extract the contained oils. Squeeze the rapeseed kernels into 0.2-0.3mm thin slices and then adjust the temperature to reduce the residual oil rate in the cake. You can also directly adjust the temperature of the rapeseed kernels. The temperature adjustment temperature is about 60°C. It can reduce the residual oil rate in the cake after one pressing. The temperature-adjusted rapeseed kernels are sent to a continuous screw oil press for oil extraction to obtain all-natural rapeseed oil, which retains all the nutrients in natural oil, has no phospholipids in the oil, and looks like refined oil. The cake is crushed in...

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Abstract

The rapeseed shell-kernel separating and raw material oil pressing process includes the steps of eliminating repeseed shell, separating rapessed shell from kernel, separated treatment of shell, squeezing oil with kernal at 35-80 deg.c and the condition of no change in protein property to obtain rapeseed cake and oil, and filtering oil to obtain product oil. The present invention is simple, low incost, high product quality and high in side product value.

Description

Technical field: [0001] The present invention relates to the process of extracting rapeseed raw meal oil. technical background: [0002] The existing raw rapeseed oil extraction process includes: (1) tempering the rapeseed to make the shell brittle and the kernel tough; (2) peeling the rapeseed, (3) separating the shell and the kernel, (4) The kernels are directly cold-pressed at room temperature, precipitated or filtered to obtain rapeseed kernel oil. The process is simple and the finished oil is low. The so-called cold pressing means that the oil is pressed under the temperature condition that the protein in rapeseed does not denature. The temperature at which the protein denatures significantly is generally above 90°C. The lower the temperature, the more denatured the protein. Because the protein is not denatured by cold pressing at room temperature, the resulting oil has no phospholipids, and the resulting meal contains undenatured protein, which can be used as high-qu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/06
Inventor 罗永宗
Owner 罗永宗
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