Production process for improving oil yield of healthy pressed rapeseed oil

A production process and technology for rapeseed oil, applied in the direction of fat oil/fat production, fat production, etc., can solve the problems of low oil production rate, high residual oil content, high cost, and improve oil production rate, eliminate green odor, reduce cost effect

Inactive Publication Date: 2016-04-20
HEXIAN COUNTY LYUYOU GREASE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Physical pressing does not use chemical reagents and has no chemical residues, but the oil yield is low, and the residual oil content in the squeezed oil cake is relatively high, so the cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A production process for improving the oil yield of healthy pressed rapeseed oil, comprising the following steps:

[0024] (1) Select plump rapeseeds without mildew, and use coarse and fine sieves to remove silt, dust and other sundries on the rapeseeds;

[0025] (2) Soak the screened rapeseed in solution for 1.5 hours;

[0026] (3) putting the soaked rapeseed into an ultrasonic instrument with a frequency of 25 kHz for ultrasonic treatment, the number of times of treatment is 3 times, and each treatment time is 30 minutes;

[0027] (4) Drain the treated rapeseed, add it to a pulverizer for crushing, and heat the crushed rapeseed with a particle size of 10 mesh to 60° C. to promote the full rupture of the oily cells;

[0028] (5) After microwave radiation, steam and stir-fry to reduce the water content of the rapeseed to 5%. At the beginning, stir-fry on high heat. After about 0.5 hours, the rapeseed in the pot cracks and cracks. Turn to low heat and add some coarse br...

Embodiment 2

[0034] A production process for improving the oil yield of healthy pressed rapeseed oil, comprising the following steps:

[0035] (1) Select plump rapeseeds without mildew, and use coarse and fine sieves to remove silt, dust and other sundries on the rapeseeds;

[0036] (2) Soak the screened rapeseed in solution for 4 hours;

[0037] (3) putting the soaked rapeseed into an ultrasonic instrument with a frequency of 30 kHz for ultrasonic treatment, the number of treatments is 3 times, and each treatment time is 60 minutes;

[0038] (4) Drain the treated rapeseed, put it into a grinder for crushing, and heat the crushed rapeseed with a particle size of 20 mesh to 90° C. to promote the full rupture of the oily cells;

[0039] (5) After microwave radiation, steam and stir-fry to reduce the water content of the rapeseed to 15%. At the beginning, stir-fry on high heat. After about 0.5 hours, the rapeseed in the pot cracks and cracks. Turn to low heat and add some coarse bran togethe...

Embodiment 3

[0045] A production process for improving the oil yield of healthy pressed rapeseed oil, comprising the following steps:

[0046] (1) Select plump rapeseeds without mildew, and use coarse and fine sieves to remove silt, dust and other sundries on the rapeseeds;

[0047] (2) Soak the screened rapeseed in solution for 2 hours;

[0048] (3) putting the soaked rapeseed into an ultrasonic instrument with a frequency of 27 kHz for ultrasonic treatment, the number of treatments was 3 times, and each treatment time was 40 minutes;

[0049] (4) Drain the treated rapeseed, add it to a pulverizer for crushing, and heat the crushed rapeseed with a particle size of 20 mesh to 70° C. to promote the full rupture of the oily cells;

[0050] (5) After microwave radiation, steam and stir-fry to reduce the water content of the rapeseed to 8%. At the beginning, stir-fry on high heat. After about 0.5 hours, the rapeseed in the pot cracks and cracks. Turn to low heat and add some coarse bran toget...

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Abstract

The invention relates to the technical field of food processing and discloses a production process for improving oil yield of healthy pressed rapeseed oil. The production process for improving the oil yield of the healthy pressed rapeseed oil comprises the following steps: (1) selecting rapeseeds, and respectively removing sundries on the rapeseeds by virtue of thick and thin sieves; (2) soaking the screened rapeseeds for 1.5-4 hours with solution; (3) putting the soaked rapeseeds into an ultrasonic instrument to be subjected to ultrasonic treatment for 30-60min for three times; (4) draining the treated rapeseeds, smashing, and carrying out microwave irradiation heating on the crushed rapeseeds, so as to promote oil containing cells to be fully fractured; and (5) after microwave irradiation is finished, steaming and frying for reducing moisture content of the rapeseeds to 5-15%, wherein the rapeseeds are fired with a big fire, after about half hour, the rapeseeds are fired with a small fire and right amount of coarse bran is added and fried together; and when temperature of the rapeseeds reaches 100-150 DEG C, taking out the rapeseeds from a pot, and pressing. The production process provided by the invention can eliminate glucosinolate in the rapeseeds, so that 'green smell' of rapeseed oil is eliminated, and the rapeseed oil is green and healthy; meanwhile, oil yield of the pressed rapeseed oil is improved by 14%, and cost of the rapeseed oil is reduced.

Description

technical field [0001] The invention relates to the technical field of food processing, in particular to a production process for improving the oil yield of healthy pressed rapeseed oil. Background technique [0002] Rapeseed oil is referred to as "vegetable oil" for short, and is generally dark yellow or brown. Rapeseed oil contains 0.4-1.0% arachidic acid, 14-19% oleic acid, 12-24% linoleic acid, 31-55% erucic acid, flax Acid 1-10%. From the perspective of nutritional value, the human body can digest and absorb rapeseed oil as high as 99%, and it has a gallbladder function. 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 on softening blood vessels and delaying aging; Important for nerve and brain development; regular canola oil contains little or no cholesterol, so people who control their cholesterol intake can eat it with confidence. [0003] There are two mai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/04C11B1/06
CPCC11B1/025C11B1/04C11B1/06
Inventor 郑成龙
Owner HEXIAN COUNTY LYUYOU GREASE
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