De-waxing and refining production process of corn germ oil

A corn germ oil and production process technology, applied in the directions of fat oil/fat/wax solidification, production of fat, edible oil/fat, etc., can solve the problems of incomplete dewaxing, poor wax quality, and high oil content in wax, and achieve wax Easy quality filtration, qualified freezing test, good hardness

Inactive Publication Date: 2012-10-31
哈尔滨天通农业科技开发有限公司
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AI Technical Summary

Problems solved by technology

[0006] The present invention aims at incomplete dewaxing, high oil content in wax and poor wax quality in the current dewaxing process.

Method used

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Embodiment Construction

[0008] The oil to be dewaxed in the oil tank is pumped out through a pump, measured by a flow meter, and exchanged by a plate heat exchanger, which adjusts the temperature through automatic control. The temperature of the oil to be dewaxed was adjusted to 45°C. The heat-exchanged oil will be directly fed into the crystallization tower, which is equipped with a variable-speed stirring device and a cooling medium heat exchange tube. First, turn on the stirring device, set the rotation speed to 20-30 r / min, and set the temperature of the cooling medium in the heat exchange tube to 35 °C, and then start to feed the oil. After the oil in the tower is full, maintain the oil temperature at 35°C to 33°C for 280 minutes. Then, by adjusting the temperature of the cooling medium, the oil temperature was lowered to about 33°C, and the oil temperature was maintained at 33°C to 30°C for 200 minutes. Finally, the oil temperature was lowered to about 30°C by adjusting the temperature of the...

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PUM

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Abstract

The invention provides a de-waxing and refining production process of corn germ oil. The production process sequentially comprises the following steps of: 1, dissolution stage, to be specific, heating oil to be de-waxed to 45 DEG C and fully dissolving wax in the oil; 2, crystallization stage, wherein the temperature range from 35 DEG C to 28 DEG C is the main precipitation period of wax, the wax is separated out at 35 DEG C to 33 DEG C for 280 min, the wax is separated out at 33 DEG C to 30 DEG C for 200 min, and the wax is separated out at 30 DEG C to 28 DEG C for 280 min; and 3, crystal growing stage, wherein the temperature range from 25 DEG C to 12 DEG C is the main crystal growing time; the crystals are grown at 25 DEG C to 22 DEG C for 180 min, the crystals are grown at 22 DEG C to 18 DEG C for 180 min, and the crystals are grown at 18 DEG C to 15 DEG C for 160 min. Meanwhile, the stirring speed is reduced to 8-10 rpm. According to the production process, disclosed by the invention, parameters of the three key procedures including dissolution, crystallization and crystal growing and main technical indexes of the corn oil are formulated, crystallization rate is improved, corn oil quality is improved favorably and the quality of the corn oil is enabled to reach the first level of national standard.

Description

Technical field: [0001] The invention relates to a production process for dewaxing and purifying corn germ oil, which belongs to the field of food vegetable oil products. Background technique: [0002] Corn germ oil, also known as corn oil, is oil extracted from corn germ. Corn oil is golden and transparent in color, fragrant, light in taste, no beany smell, oily but not greasy. It can not only maintain the color, original taste and flavor of vegetables and food, but also does not lose nutritional value. It is very suitable for fast cooking and frying. Oil for frying. [0003] Corn oil is easily absorbed by the human body, and the absorption rate can be as high as 98%. It is an ideal edible health oil for most people, those with pathological changes in the digestive system, especially the elderly. It has a history of more than 100 years in developed countries such as Europe and the United States. In western developed countries, corn oil has become the mainstream oil for h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B3/00C11B15/00A23D9/04
Inventor 关宪峰
Owner 哈尔滨天通农业科技开发有限公司
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