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A kind of corn oil with the function of regulating lipid metabolism and its preparation method

A technology of lipid metabolism and corn oil, which is applied in the fields of fat oil/fat refining, function of food ingredients, fat production, etc., and can solve problems such as sterol and vitamin E loss

Active Publication Date: 2022-04-12
COFCO NUTRITION & HEALTH RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, decolorization by this method has the disadvantage of loss of sterols and vitamin E

Method used

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  • A kind of corn oil with the function of regulating lipid metabolism and its preparation method
  • A kind of corn oil with the function of regulating lipid metabolism and its preparation method
  • A kind of corn oil with the function of regulating lipid metabolism and its preparation method

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preparation example Construction

[0027] In the second embodiment, the present invention provides the preparation method of the corn oil product with the function of regulating lipid metabolism described in the first embodiment, wherein the method comprises the following steps:

[0028] 1) degumming: hydration and degumming of corn crude oil to obtain degummed corn crude oil;

[0029] 2) Dewaxing: subjecting the degummed crude corn oil to low-temperature freezing and dewaxing at -10 to 10°C to obtain dewaxed crude corn oil;

[0030] 3) Molecular distillation to concentrate sterols and vitamin E: deacidify the dewaxed crude corn oil in a deacidification tower with a temperature of 170°C and a vacuum of 133.3Pa after pre-dehydration gas treatment and two-stage molecular distillation , to obtain concentrated corn oil with improved sterol and vitamin E content;

[0031] 4) Deployment: mix the concentrated corn oil and ordinary refined first-grade corn oil in a blending tank according to the formula ratio, and fil...

Embodiment 1

[0051] Preparation of corn oil product with the function of regulating lipid metabolism:

[0052] 1) Degumming: adding 7% (relative to the weight of the oil) hot water at 90°C to the crude corn oil for hydration and degumming to obtain the degummed crude corn oil;

[0053] 2) Dewaxing: subjecting the degummed crude corn oil to low-temperature freezing and dewaxing at -5°C to obtain dewaxed crude corn oil;

[0054] 3) Concentrating sterols and vitamin E by molecular distillation: the dewaxed crude corn oil enters the pre-dehydration system, and is treated by a thin-film evaporator under the conditions of 90°C and 50Pa to obtain pre-dehydration oil;

[0055] Two-stage molecular distillation treatment: the pre-dehydrated oil enters the first-stage molecular distillation system, and enters the first molecular still after being preheated to 190°C. The distillation temperature of the first molecular still is 280°C and the rotation speed is 30 rpm minutes, the vacuum degree is 0.1Pa...

Embodiment 2

[0058] Table 1 Effect of different secondary distillation distillation temperatures on the content of concentrated corn olesterol and vitamin E

[0059]

[0060]As shown in Table 1, the grease enters the pre-dehydration system, and is treated by a thin-film evaporator under the conditions of 92°C and 50Pa to obtain pre-dehydration grease. The pre-dehydrated oil enters the primary molecular distillation system, and enters the first molecular still after being preheated to 190°C. The distillation temperature of the first molecular still is 275°C, the rotation speed is 30 rpm, and the vacuum degree is 0.1Pa , the condensation temperature is 20°C, the obtained first light phase substance enters the first light phase tank after being condensed and collected, and the first heavy phase substance enters the first heavy phase tank; the first heavy phase substance further enters the secondary molecular distillation system, After being preheated to 247°C, it enters the second molecula...

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Abstract

The invention relates to a corn oil product with the function of regulating lipid metabolism and a preparation method thereof. The sterol content in the corn oil product is 800-4800mg / 100g, the vitamin E content is 22-290mg / 100g, and the red value R is 0.6-3.0. While the corn oil product of the invention is rich in sterols and vitamin E, it also has a color red value R in a specific range, helps to reduce blood triglyceride and cholesterol, and has the energy efficiency of inhibiting lipid synthesis in the liver. The preparation method of the corn oil product of the invention is simple and scientific, and can simultaneously realize the improvement of sterol and vitamin E content and the control of color without using a decolorizing agent.

Description

technical field [0001] The invention relates to the field of vegetable oil processing, in particular to corn oil with high content of sterol and vitamin E and controlled redness value and a preparation method thereof. Background technique [0002] In 2018, the consumption of corn oil in my country has exceeded 1 million tons, and corn oil has become one of the important consumer products of edible oil in my country. Corn oil is rich in micronutrients such as phytosterols and vitamin E. The content of phytosterols in high-quality corn oil can reach more than 1000mg / 100g. Up to 30%-40%. [0003] Phytosterols are similar in structure to animal sterol cholesterol. They are active components in plants and have many important physiological functions. Studies have found that supplementing phytosterols can significantly reduce the total cholesterol and low-density lipoprotein levels in the blood. Sierksma et al. found that taking 0.8g soybean sterols per day can significantly red...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23D9/007A23D9/04A23L33/11A23L33/15C11B3/00C11B3/02C11B3/12
CPCA23D9/007A23D9/04A23L33/11A23L33/15C11B3/001C11B3/02C11B3/12A23V2002/00A23V2200/3262A23V2200/30A23V2250/21368A23V2250/712
Inventor 李晓龙惠菊王翔宇孟祥永陈吉江曹斌辉
Owner COFCO NUTRITION & HEALTH RES INST
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