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Refining method of rapeseed oil

A rapeseed oil and material technology, applied in the direction of fat oil/fat refining, fat production, etc., can solve the problems of increased economic cost, high oil consumption, poor removal effect of colloids such as phospholipids, etc., to increase storage time and reduce acidification speed , the effect of long storage time

Inactive Publication Date: 2018-04-13
DONGGUAN XIANGFEI INTELLIGENT EQUIP TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, refining is carried out by alkaline washing, and the soap formed by alkali and acid in the oil is used to absorb the pigment in the oil to improve the appearance of the rapeseed oil. This method consumes a lot of fuel and increases the economic cost. In addition, the refined rapeseed oil also The soluble impurities cannot be completely removed, and the removal effect of colloids such as phospholipids is poor, which limits the development of rapeseed oil processing technology

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  • Refining method of rapeseed oil

Examples

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Effect test

Embodiment 1

[0028] A kind of rapeseed oil refining method of the present embodiment, comprises the following steps:

[0029] Step 1, pretreatment: place the rapeseed oil at a temperature of 2°C, let it stand for 50 minutes, then perform microwave treatment, and then

[0030] Filter again to remove impurities to obtain substance A;

[0031] Step 2, degumming: heat up the substance A obtained in step 1 to 30°C, stir at a speed of 70r / min, and stir for 40min, then add tartaric acid, heat up to 40°C, continue to stir for 30min, stir at a speed of 50r / min, then add phosphoric acid, continue Stir for 45min at a stirring speed of 40r / min, then centrifuge to obtain supernatant B;

[0032] Step 3, deacidification: the supernatant B was added to a sodium carbonate solution with a mass fraction of 50%, the stirring time was 30min, and the stirring speed was 40r / min, and then added to a centrifuge for centrifugation, the centrifugation time was 35min, and the centrifugal speed was 40r / min. Substanc...

Embodiment 2

[0042] A method for refining rapeseed oil, comprising the following steps:

[0043] Step 1, pretreatment: put the rapeseed oil at a temperature of 2°C, let it stand for 50 minutes, then perform microwave treatment, and then filter to remove impurities to obtain substance A;

[0044] Step 2, degumming: heat up the substance A obtained in step 1 to 30°C, stir at a speed of 65r / min, and stir for 40min, then add tartaric acid, heat up to 40°C, continue to stir for 30min, stir at a speed of 50r / min, then add phosphoric acid, continue Stir for 45min at a stirring speed of 35r / min, then centrifuge to obtain supernatant B;

[0045] Step 3, deacidification: adding the supernatant B into the sodium carbonate solution with a mass fraction of 50%, stirring for 30 minutes at a stirring speed of 35r / min, then adding it to a centrifuge for centrifugation at a centrifugation time of 35min and a centrifugal speed of 40r / min, Substance C is obtained;

[0046] Step 4, decolorization: Stir the ...

Embodiment 3

[0055] A method for refining rapeseed oil, comprising the following steps:

[0056] Step 1, pretreatment: place the rapeseed oil at a temperature of 2°C, let it stand for 50 minutes, then perform microwave treatment, and then

[0057] Filter again to remove impurities to obtain substance A;

[0058] Step 2, degumming: heat up the substance A obtained in step 1 to 30°C, stir at a speed of 80r / min, and stir for 40min, then add tartaric acid, heat up to 40°C, continue to stir for 30min, stir at a speed of 70r / min, then add phosphoric acid, continue Stir for 45min at a stirring speed of 50r / min, then centrifuge to obtain supernatant B;

[0059] Step 3, deacidification: the supernatant B is added to the sodium carbonate solution with a mass fraction of 50%, the stirring time is 30min, and the stirring speed is 50r / min, and then added to the centrifuge for centrifugation, the centrifugation time is 35min, and the centrifugal speed is 40r / min. Substance C is obtained;

[0060] Ste...

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Abstract

The invention discloses a refining method of rapeseed oil. The method comprises the following steps: S1, pre-treatment: putting the rapeseed oil at 1-3 DEG C to leave the same to stand for 45-55min, then carrying out microwave treatment, and carrying out filtration to remove impurities to obtain a substance A; and S2, degumming: heating the substance A obtained in the step A to 25-35 DEG C, wherein the stirring speed is 65-75 r / min and the stirring time is 35-45min, and adding tartaric acid. The refining method of rapeseed oil disclosed by the invention is relatively low in oil consumption asthe alkali wash mode is not used, so that the economical cost is reduced. In the degumming process, soluble substances can be removed completely, and meanwhile, the removal effect of colloids such asphospholipid is good, so that the refining method is relatively high in using value and good in application prospect.

Description

technical field [0001] The invention relates to the technical field of rapeseed oil processing, in particular to a method for refining rapeseed oil. Background technique [0002] Rapeseed oil is what we commonly call rapeseed oil, also known as rapeseed oil, coriander oil, canola oil, sesame oil, and canola oil. It is a kind of edible oil squeezed out of rapeseed. It is one of the main edible oils in my country. In the Yangtze River Basin, Southwest, Northwest and other places, the output ranks first in the world. The human body has a high absorption rate of rapeseed oil, which can reach 99%. Therefore, the unsaturated fatty acids such as linoleic acid and vitamin E and other nutrients contained in it can It is well absorbed by the body and has a certain effect of softening blood vessels and delaying aging. From the production process, it can be divided into pressed rapeseed oil and leached rapeseed oil. According to whether the raw material is genetically modified, it can be ...

Claims

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Application Information

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IPC IPC(8): C11B3/00C11B3/04C11B3/06C11B3/10
CPCC11B3/001C11B3/005C11B3/008C11B3/04C11B3/06C11B3/10
Inventor 邓凯
Owner DONGGUAN XIANGFEI INTELLIGENT EQUIP TECH CO LTD
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