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Rice bran oil refining method

A technology of rice bran oil and rice bran, which is applied in the direction of fat oil/fat refining, recycling technology, and fat production to achieve the effects of accelerating the crystallization process, increasing the content, improving the refining efficiency and product quality

Active Publication Date: 2019-01-08
SHANDONG SANXING CORN IND SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Rice bran oil contains a certain amount of octacosanol, but for the existing rice bran oil refining process, only a very low content of octacosanol can be retained in the final product

Method used

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  • Rice bran oil refining method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The present embodiment provides a kind of rice bran oil refining method, comprises the following steps:

[0029] 1) Phosphoric acid degumming

[0030] Heat rice bran crude oil to 50°C, add 0.08% phosphoric acid (concentration: 80%) to the oil, stir and heat to 65°C, stop heating, and continue stirring for 15 minutes to obtain degummed oil.

[0031] 2) Alkali refining deacidification

[0032] Add lye at a temperature of 60°C and a concentration of 13°Bé, stir and heat to 85°C, react for 15 minutes, and then centrifuge to remove soapstock to obtain deacidified oil.

[0033] 3) Flash dehydration

[0034] The above-mentioned deacidified oil is transported to a flash tower for a flash evaporation to remove part of the water to obtain dehydrated oil.

[0035] 4) Level one relief

[0036] The dehydrated oil is transported to the preheater through the feed pump and preheated to a preheating temperature of 190°C. After that, the preheated dehydrated oil is sent from the top...

Embodiment 2

[0048]The present embodiment provides a kind of rice bran oil refining method, comprises the following steps:

[0049] 1) Phosphoric acid degumming

[0050] Heat rice bran crude oil to 45°C, add 0.07% phosphoric acid (concentration: 75%) to the oil, stir and heat to 60°C, stop heating, and continue stirring for 10 minutes to obtain degummed oil.

[0051] 2) Alkali refining deacidification

[0052] Add lye at a temperature of 55°C and a concentration of 12°Bé, stir and heat to 80°C, react for 10 minutes, and then centrifuge to remove soapstock to obtain deacidified oil.

[0053] 3) Flash dehydration

[0054] The above-mentioned deacidified oil is transported to a flash tower for a flash evaporation to remove part of the water to obtain dehydrated oil.

[0055] 4) Level one relief

[0056] The dehydrated oil is transported to the preheater through the feed pump and preheated to a preheating temperature of 180°C. Afterwards, the preheated dehydrated oil is sent from the top ...

Embodiment 3

[0068] The present embodiment provides a kind of rice bran oil refining method, comprises the following steps:

[0069] 1) Phosphoric acid degumming

[0070] Heat rice bran crude oil to 55°C, add 0.10% phosphoric acid (concentration: 85%) to the oil, stir and heat to 70°C, stop heating, and continue stirring for 20 minutes to obtain degummed oil.

[0071] 2) Alkali refining deacidification

[0072] Add lye with a temperature of 65°C and a concentration of 15°Bé, stir and heat to 90°C, react for 20 minutes, and then centrifuge to remove soapstock to obtain deacidified oil.

[0073] 3) Flash dehydration

[0074] The above-mentioned deacidified oil is transported to a flash tower for a flash evaporation to remove part of the water to obtain dehydrated oil.

[0075] 4) Level one relief

[0076] The dehydrated oil is transported to the preheater through the feed pump and preheated to a preheating temperature of 200°C. After that, the preheated dehydrated oil is fed from the to...

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Abstract

The invention discloses a rice bran oil refining method. The method comprises the steps for processing of rice bran crude oil as follows: pretreatment and graded dewaxing and deodorization to obtain finished rice bran oil. Compared with the prior art, the process comprises the multistage dewaxing and decolorization steps, the content of octacosanol reserved in the rice bran oil product can be significantly increased, and the refining efficiency and the product quality can be improved. Besides, light components are removed with a molecular distillation technology, purification is performed through high-pressure steam, impurities in the rice bran crude oil are removed more sufficiently, and the refining degree and the quality of the rice bran oil product are improved.

Description

technical field [0001] The invention relates to the technical field of oil processing, in particular to a method for refining rice bran oil. Background technique [0002] Rice bran oil is a kind of rice oil obtained from rice bran, a by-product of rice processing, by pressing or leaching. Rice bran oil has high nutritional value. In developed countries such as Europe, America, Korea, Japan, etc., it is a healthy nutritional oil as famous as olive oil. It is deeply loved by people with high blood fat and cardiovascular and cerebrovascular diseases, and has long become the daily health of Western families. cooking oil. [0003] Octacosanol (also known as n-octacosanol) is a naturally occurring monohydric higher fatty alcohol, and is a world-recognized anti-fatigue functional substance. It has been proved by research that it has a series of unique physiological functions and has a therapeutic effect on human reproductive disorders. On this basis, octacosanol has the function...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B3/00C11B3/10C11B3/04C11B3/06C11B3/12
CPCC11B3/001C11B3/04C11B3/06C11B3/10C11B3/12Y02W30/74
Inventor 王月华王明星张素芬孙德江成良玉
Owner SHANDONG SANXING CORN IND SCI CO LTD
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