Rice bran oil refining production method

A production method and technology of rice bran oil, applied in the direction of fat oil/fat production, fat oil/fat refining, fat production, etc., can solve the problems of high energy consumption, difficult deep processing, and many impurities in the production process, so as to reduce the content of impurities, The production process has the effect of low energy consumption and high oil yield

Inactive Publication Date: 2014-08-13
安徽渡民粮油有限公司
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Problems solved by technology

However, in the prior art, the rice bran oil produced by the solvent extraction method has the characteristics of darker color, and the production process consumes a lot of energy, the extraction of rice bran oil is incomplete, and contains many impurities. Affect the edible value and safe storage of fats and oils, and bring difficulties to deep processing

Method used

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Embodiment Construction

[0014] A rice bran oil refining production method, comprising the following steps

[0015] (1) Preservation of rice bran: Add leaching solvent isopropanol to fresh rice bran to obtain mixed rice bran crude oil; wherein, the weight ratio of leaching solvent to rice bran is 1.2:1, the temperature of the leaching process is 55-58°C, and the pH value 6.4-6.6; at the same time, add papain with a mass of 0.1-0.12% of rice bran, 8-12 times the amount of water, and stir evenly; the extraction time is 4-8h;

[0016] (2) The pretreatment process of the mixed rice bran crude oil: after the mixed rice bran crude oil is filtered, the solvent is evaporated and recovered, and the impurity content in the rice bran crude oil obtained after filtering is controlled below 0.2%;

[0017] (3) Degumming and dewaxing: place the crude rice bran oil obtained through the extraction of step (2) into a container with a stirrer, add 20-25% aqueous oxalic acid solution, stir and heat up to 62-64°C, and let ...

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Abstract

The invention discloses a rice bran oil refining production method. The method comprises the following steps: (1) freshness preservation of rice bran, namely adding isopropanol taken as a leaching solvent into fresh rice bran so as to leach a crude mixed rice bran oil; (2) preprocessing of the crude mixed rice bran oil, namely controlling the content of impurities in the crude rice bran oil to be below 0.2%; (3) degumming and dewaxing; (4) decoloring; (5) deacidification; and (6) deodorization, thereby obtaining rice bran oil. The method disclosed by the invention overcomes the defects in the prior art, and is low in energy consumption in a production process, high in oil yield and good in rice bran oil decoloring effect; the impurity treatment is carried out in the production process of the rice bran oil, so that the content of the impurities in the rice bran oil is further decreased. Thus, the quality of the rice bran oil is improved.

Description

technical field [0001] The invention relates to the technical field of food production, in particular to a rice bran oil refining production method. Background technique [0002] Rice bran is a by-product of rice processing, with an oil content of 15-22%, and rice bran oil is a high-quality edible oil containing glycolipids, glycoproteins, fatty acids and other lipids, which can promote human growth; , Anti-thermal oxidation and other advantages, known as "healthy oil", "nutritious oil", has a very good market prospect. There are three main production processes for rice bran oil, one is mechanical pressing, the other is solvent leaching, and the third is supercritical extraction. Among them, the oil yield of solvent leaching is higher than the other two, and it is easy to produce on a large scale, so , strong applicability. However, in the prior art, the rice bran oil produced by the solvent extraction method has the characteristics of darker color, and the production proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/10C11B3/04C11B3/10C11B3/06C11B3/12C11B3/00
Inventor 程进
Owner 安徽渡民粮油有限公司
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