Extraction method for rapeseed oil

An extraction method, rapeseed oil technology, applied in the direction of fat oil/fat production, fat production, etc., can solve the problem of rapeseed oil colloid exceeding the standard, and achieve the effect of long shelf life, short extraction time and bright color

Inactive Publication Date: 2014-09-03
缪斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can form batches, the processed rapeseed oil colloid seriously exceeds the standard, and it needs to go through hydration degumming, alkali washing, water washing, and dehydration before it can be eaten.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A method for extracting rapeseed oil, characterized in that: comprising the following process steps,

[0016] (1) Put the rapeseed into the screening machine to sieve clean, remove impurities, then put it into the pulverizer and pulverize into powder;

[0017] (2) Put the rapeseed powder in the step (1) in the freezing equipment, and freeze at a temperature of -8°C for 1 to 2 times, and the freezing time for each time is 2.5 hours;

[0018] (3) The rapeseed powder frozen in step (2) is quickly placed in a baking container, placed in an oven, and baked at a temperature of 125°C for 70 seconds;

[0019] (4) Collect the rapeseed powder after roasting, put into the rapeseed powder and water in a ratio of 1:1 by mass, and stir evenly;

[0020] (5) Act for 7 minutes at a temperature of 40°C and a microwave power of 340W / L, stir and extract, and collect the filtrate;

[0021] (6) Standing and filtering the filtrate to obtain the finished product of rapeseed oil.

Embodiment 2

[0023] A method for extracting rapeseed oil, characterized in that: comprising the following process steps,

[0024] (1) Put the rapeseed into the screening machine to sieve clean, remove impurities, then put it into the pulverizer and pulverize into powder;

[0025] (2) Put the rapeseed powder in the step (1) in the freezer, freeze 1 to 2 times at a temperature of -8°C, and freeze for 2 hours each time;

[0026] (3) The rapeseed powder frozen in step (2) is quickly placed in a baking container, placed in an oven, and baked at a temperature of 125°C for 70 seconds;

[0027] (4) Collect the rapeseed powder after roasting, put into the rapeseed powder and water in a ratio of 1:1 by mass, and stir evenly;

[0028] (5) Act for 6 minutes at a temperature of 50°C and a microwave power of 340W / L, and collect the filtrate after stirring and extracting;

[0029] (6) Standing and filtering the filtrate to obtain the finished product of rapeseed oil.

Embodiment 3

[0031] A method for extracting rapeseed oil, characterized in that: comprising the following process steps,

[0032] (1) Put the rapeseed into the screening machine to sieve clean, remove impurities, then put it into the pulverizer and pulverize into powder;

[0033] (2) Put the rapeseed powder in the step (1) in a freezer, freeze 1 to 2 times at a temperature of -8°C, and freeze for 3 hours each time;

[0034] (3) The rapeseed powder frozen in step (2) is quickly placed in a baking container, placed in an oven, and baked at a temperature of 125°C for 70 seconds;

[0035] (4) Collect the rapeseed powder after roasting, put into the rapeseed powder and water in a ratio of 1:1 by mass, and stir evenly;

[0036] (5) Act for 5 minutes at a temperature of 55°C and a microwave power of 340W / L, stir and extract, and collect the filtrate;

[0037] (6) Standing and filtering the filtrate to obtain the finished product of rapeseed oil.

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PUM

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Abstract

An extraction method for rapeseed oil comprises the following technological steps: (1) putting rapeseeds into a screening machine to screen cleanly, remove impurities, and putting in a pulverizer to pulverize into a powder; (2) putting the rapeseed powder obtained in the step (1) in refrigeration equipment, and refrigerating at -8 DEG C for 2-3 h each time for 1-2 times; (3) rapidly transferring the refrigerated rapeseed powder obtained in the step (2) to a baking container, putting in a baker, and baking at 125 DEG C for 70 s; (4) collecting baked rapeseed powder, mixing rapeseed powder and water according to a mass ratio of 1:1, and stirring uniformly; (5) performing microwave processing at a temperature of 15-55 DEG C with the microwave power of 340 W/L for 5-10 min, performing stirring extraction and collecting a filtrate; and (6) performing standing filtering on the filtrate, so as to obtain the rapeseed oil finished product. The technology is simple and practicable, the extraction time is short, and the extracted rapeseed oil is pure in flavor, bright in color and free of precipitate.

Description

technical field [0001] The invention relates to the technical field of edible oil processing, in particular to a method for extracting rapeseed oil. Background technique [0002] As we all know, the rapeseed oil produced in traditional workshops is to send the rapeseed into the casserole for frying and then enter the oil press to press. The rapeseed oil oil colloid produced by this method exceeds the standard, and the oil color is dark. In order to solve this problem, people usually use the hydration method to directly precipitate, but the workshop producers usually have no refining equipment, so that the oil produced cannot meet the moisture standard specified by the secondary oil, resulting in a short shelf life of the oil, and some even appear a , Two months to become smelly phenomenon. Another processing method of traditional rapeseed oil is to heat the rapeseed with steam and put it into the 202 pre-pressing machine for pressing. Although this method can form batches...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/10
Inventor 缪斌兰伟
Owner 缪斌
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