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A kind of rice bran oil refining method

A technology of rice bran oil and rice bran, applied in the field of rice bran oil refining, to achieve the effects of accelerating the crystallization process, increasing the content, improving refining efficiency and product quality

Active Publication Date: 2022-05-24
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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  • A kind of rice bran oil refining method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The present embodiment provides a method for refining rice bran oil, comprising the following steps:

[0029] 1) Phosphoric acid degumming

[0030] Heat the crude rice bran to 50°C, add 0.08% phosphoric acid (concentration of 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 and deacidification

[0032] Add the alkaline solution with a temperature of 60°C and a concentration of 13°Bé, stir and heat to 85°C, react for 15 minutes, and then remove the soapstock by centrifugation to obtain a deacidified oil.

[0033] 3) Flash dehydration

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

[0035] 4) Level 1 lightening

[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 preheate...

Embodiment 2

[0048]The present embodiment provides a method for refining rice bran oil, comprising the following steps:

[0049] 1) Phosphoric acid degumming

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

[0051] 2) Alkali refining and deacidification

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

[0053] 3) Flash dehydration

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

[0055] 4) Level 1 lightening

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

Embodiment 3

[0068] The present embodiment provides a method for refining rice bran oil, comprising the following steps:

[0069] 1) Phosphoric acid degumming

[0070] Heat the crude rice bran to 55°C, add 0.10% phosphoric acid (85% concentration) 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 and deacidification

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

[0073] 3) Flash dehydration

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

[0075] 4) Level 1 lightening

[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 d...

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Abstract

The invention discloses a rice bran oil refining method, which comprises the following steps of processing rice bran crude oil: pretreatment, graded dewaxing, decolorization and deodorization to obtain finished rice bran oil. Compared with the prior art, the multistage dewaxing and decolorization steps are carried out in the process of the present invention, which can significantly increase the content of octacosanol retained in the rice bran oil product, and improve refining efficiency and product quality. In addition, the present invention adopts molecular distillation technology for light removal and high-pressure steam for purification, thereby more fully removing impurities in rice bran crude oil, and improving the refining degree and the quality of rice bran oil products.

Description

technical field [0001] The invention relates to the technical field of oil and fat processing, in particular to a method for refining rice bran oil. Background technique [0002] Rice bran oil is a kind of rice oil obtained by pressing or leaching method from the by-product rice bran obtained in the process of rice processing. Rice bran oil has high nutritional value. In developed countries such as Europe, America, South Korea and Japan, it is a healthy nutritional oil that is as famous as olive oil. edible oil. [0003] Octacosanol (also known as n-octacosanol) is a naturally occurring monohydric higher aliphatic alcohol, and is a world-recognized anti-fatigue functional substance. It has been confirmed by research that it has a series of unique physiological functions and has a therapeutic effect on reproductive disorders in the human body. On this basis, octacosanol can enhance endurance, energy and physical strength; improve response acuity; regulate motor nerve funct...

Claims

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Application Information

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Patent Type & Authority Patents(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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