Corn oil containing medium chain fatty acid ester and preparation method thereof

A medium-chain fatty acid ester and medium-chain fatty acid technology, which is applied in the field of corn oil preparation, can solve the problems of easy oxidation, low smoke point of medium-chain fatty acids, unsuitable cooking, etc., to promote rapid metabolism, rectal absorption, and fast The effect of replenishing energy

Active Publication Date: 2010-12-22
SHANDONG SANXING CORN IND SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] 3. Easier to be oxidized during catabolism
[0020] Generally, most edible oils are mainly long-chain fatty acids. If the intake is too much, it will become body fat accumulation. However, the medium-chain fatty acids used in clinical nutrition are metabolized through the hepatic portal vein and quickly delivered to the liver to be decomposed into heat. It will accumulate in the body, but medium-chain fatty acids have a low smoke point and are not suitable for cooking, only suitable for cooking dishes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] a, corn oil enzymatic hydrolysis steps:

[0041] Put the refined corn oil into the reactor I, then add 10% corn oil weight water, then add 20 U / g lipohydrolase (based on corn oil), react for 10 hours at a temperature of 40°C, and hydrolyze The products are long-chain fatty acids, long-chain fatty acid glycerides and glycerol;

[0042] b. Molecular distillation step:

[0043] Molecular distillation is carried out on the hydrolyzate in the reaction kettle Ⅰ through a molecular still. The pressure of the degassing kettle is 0.1kPa, the distillation pressure is 6.0Pa, and the distillation feed rate is 1000g / h to separate long-chain fatty acids and obtain long-chain fatty acid glycerol Mixtures of esters and glycerol;

[0044] c, esterification step:

[0045]Put the mixture obtained in the above steps into the reaction kettle II, use phosphotungstic acid as the catalyst, and the amount of the catalyst is 1% of the mass of the mixture; then add caprylic acid for esterifica...

Embodiment 2

[0050] a, corn oil enzymatic hydrolysis steps:

[0051] Put the refined corn oil into the reaction kettle Ⅰ, then add 15% of the weight of corn oil in water, then add 50 U / g lipohydrolase (based on corn oil), react for 6 hours at a temperature of 60°C, and hydrolyze The products are long-chain fatty acids, long-chain fatty acid glycerides and glycerol;

[0052] b. Molecular distillation step:

[0053] Molecular distillation is carried out on the hydrolyzate in the reaction kettle Ⅰ through a molecular still. The pressure of the degassing kettle is 0.5kPa, the distillation pressure is 7.5Pa, and the distillation feed rate is 1200g / h. Long-chain fatty acids are separated to obtain long-chain fatty acid glycerol Mixtures of esters and glycerol;

[0054] c, esterification step:

[0055] Put the mixture obtained in the above steps into the reaction kettle II, use phosphotungstic acid as the catalyst, the amount of the catalyst is 5% of the mass of the mixture; then add capric ac...

Embodiment 3

[0060] a, corn oil enzymatic hydrolysis steps:

[0061] Put the refined corn oil into the reaction kettle Ⅰ, then add 13% corn oil weight water, then add 30 U / g lipohydrolase (based on corn oil), react at a temperature of 50°C for 8 hours, and hydrolyze The products are long-chain fatty acids, long-chain fatty acid glycerides and glycerol;

[0062] b. Molecular distillation step:

[0063] Molecular distillation is carried out on the hydrolyzate in the reaction kettle Ⅰ through a molecular still. The pressure of the degassing kettle is 0.4kPa, the distillation pressure is 7.07Pa, and the distillation feed rate is 1100g / h. Long-chain fatty acids are separated to obtain long-chain fatty acid glycerol Mixtures of esters and glycerol;

[0064] c, esterification step:

[0065] The mixture obtained in the above steps is sent into the reaction kettle II, using phosphotungstic acid as a catalyst, and the amount of the catalyst is 3% of the mass of the mixture; The ratio is 3.0:1; t...

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PUM

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Abstract

The invention belongs to the technical field of the preparation of corn oil, in particular to the corn oil containing a medium chain fatty acid ester and a preparation method thereof. The weight percentage of the medium chain fatty acid ester in the corn oil containing the medium chain fatty acid ester is between 25 and 40 percent. In the corn oil containing the medium chain fatty acid ester obtained by ester exchange technology, medium chain fatty acid is successfully combined with long-chain fatty acid, so that a product has a health-care function of reducing the accumulation of fat and hasthe characteristic of usability for cooking delicious food like ordinary edible oil.

Description

technical field [0001] The invention belongs to the technical field of corn oil preparation, in particular to a corn oil containing medium-chain fatty acid ester and a preparation method thereof. Background technique [0002] Both vegetable and animal oils are triglycerides. Triglycerides are composed of one molecule of glycerol and three molecules of fatty acids. According to the number of carbon atoms in fatty acid molecules, triglycerides can be divided into three types: long-chain triglycerides, medium-chain triglycerides and short-chain triglycerides. [0003] Long-chain triglycerides are produced by combining fatty acids with more than 12 carbon atoms with glycerol. In edible oil, more than 95% of the ingredients are composed of long-chain triglycerides, and the fat stored in the human body is mainly long-chain triglycerides. [0004] Medium-chain triglycerides are produced by combining fatty acids with 6 to 12 carbon atoms and glycerol. Medium-chain triglycerides ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23D7/04
Inventor 蔡会英王萍王洪尧
Owner SHANDONG SANXING CORN IND SCI CO LTD
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