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A kind of preparation method and application of grease that can customize sn-2 position fatty acid

A sn-2, fatty acid technology, applied in the field of oils and fats, can solve the problem of uncontrollable sn-2 fatty acid, etc., and achieve the effect of easy industrial production, cost reduction, and stable fatty acid composition

Active Publication Date: 2021-10-26
福汇生物科技(广东)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the medium and long-chain fatty acid structure oil in the prior art cannot control the sn-2 fatty acid, the present invention provides a preparation method and application of oil that can customize the sn-2 fatty acid. The oil prepared by the present invention It has the function of fast energy supply and balanced intake of fatty acids at the same time. Among them, the sn-1 and 3 positions of triglycerides are mainly medium-chain fatty acids, and the sn-2 positions are all long-chain fatty acids. Therefore, different products are made together. The blended oil can precisely control the reasonable fatty acid composition ratio and content

Method used

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  • A kind of preparation method and application of grease that can customize sn-2 position fatty acid
  • A kind of preparation method and application of grease that can customize sn-2 position fatty acid
  • A kind of preparation method and application of grease that can customize sn-2 position fatty acid

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Effect test

Embodiment 1

[0045] A kind of preparation method of the grease of the present embodiment that can customize sn-2 position fatty acid, comprises the following steps:

[0046] (1) Glycerin and oleic acid are mixed evenly, and the molar ratio of glycerol and oleic acid is 1:3, pass through the reactor of the packed column that immobilized lipase is housed, and described immobilized lipase is Lipozyme-435, carries out Esterification reaction, the temperature of the esterification reaction is 50°C, the pH value is 5.0, and the flow rate is 1 times the amount of immobilized lipase to obtain triolein and water, and the water in the product is removed by distillation;

[0047] (2) The glyceryl trioleate is mixed with caprylic acid, the molar ratio of glyceryl trioleate and caprylic acid is 1:2, by a packed column reactor equipped with 1,3-specific lipase, the The 1,3-specific lipase is Lipozyme-RM, and the transesterification reaction is carried out. The temperature of the transesterification reac...

Embodiment 2

[0052] A kind of preparation method of the grease of the present embodiment that can customize sn-2 position fatty acid, comprises the following steps:

[0053] (1) Glycerin and docosahexaenoic acid are mixed evenly, and the molar ratio of glycerol and docosahexaenoic acid is 1:4, by the reactor of the packed column that immobilized lipase is housed, described The immobilized lipase is Lipozyme-435, and the esterification reaction is carried out. The temperature of the esterification reaction is 60°C, the pH value is 6.0, and the flow rate is 2.5 times the amount of the immobilized lipase to obtain triglyceride and water. The water in the product removal by distillation;

[0054] (2) The triglyceride is mixed with capric acid, the molar ratio of triglyceride and capric acid is 1:5, and the 1,3-specific lipase is passed through a packed column reactor, and the 1 ,3-specific lipase is Lipozyme-RM, for transesterification reaction, the temperature of transesterification reaction...

Embodiment 3

[0059] A kind of preparation method of the grease of the present embodiment that can customize sn-2 position fatty acid, comprises the following steps:

[0060] (1) Glycerol and linolenic acid are mixed evenly, the molar ratio of glycerol and linolenic acid is 1:5, pass through the reactor of the packed column that immobilized lipase is housed, and described immobilized lipase is Lipozyme-435, carries out Esterification reaction, the temperature of the esterification reaction is 70°C, the pH value is 7.0, and the flow rate is 4 times the amount of immobilized lipase to obtain triglyceride and water, and the water in the product is removed by distillation;

[0061] (2) The triglyceride is mixed with lauric acid, the molar ratio of triglyceride and lauric acid is 1:8, and the 1,3-specific lipase is passed through a packed column reactor, and the 1 ,The 3-specific lipase is Lipozyme-RM, and the transesterification reaction is carried out. The temperature of the transesterificatio...

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Abstract

The present invention relates to a preparation method and its application of custom-made sn-2-position fatty acid grease. The method adopts two-step reaction of esterification reaction and transesterification reaction, and can prepare sn-2-position fatty acid oil according to different selected raw materials. fatty acids, while the sn-1,3 positions are mainly triglycerides of medium-chain fatty acids. The two-step reaction of the present invention uses a packed column reactor as the reaction equipment; the pH value of the reaction system is adjusted by the water extract of the reaction substrate, which improves the productivity of the enzyme; the material pressure of the reaction system is reduced by the pretreatment of the enzyme, which can The service life of the enzyme is extended; the fatty acid composition of the prepared product is stable, and it is more convenient to control the composition ratio of the fatty acid as a component of edible blending oil. In addition, all the by-products obtained from the reaction of the method of the present invention can be recycled and utilized, which is environmentally friendly, and the process flow is simple, the raw materials are easily available, the reaction conditions are mild, and the equipment used has mature technology, which is easy to carry out industrial production.

Description

technical field [0001] The invention belongs to the technical field of fats and oils, and in particular relates to a preparation method and application of fats and fats capable of customizing the sn-2 position fatty acid. Background technique [0002] Medium- and long-chain fatty acid edible oil was approved as a new food raw material in 2012. It is a food raw material that can quickly supply energy and prevent fat accumulation in the body. However, since the types of vegetable oil raw materials are not limited in the preparation process, different vegetable oils are selected as raw materials, and the obtained finished products will have different fatty acid compositions, especially the type of fatty acid at the sn-2 position will be restricted by the selected raw material oil. The sn-1 and 3-position ester bonds of triglycerides are transformed into free fatty acids by pancreatic lipase in the body, and the sn-2-position fatty acids are absorbed by the body in the form of m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12P7/64A23D9/013
CPCA23D9/013C12P7/6445C12P7/6454
Inventor 张志钢区博孟
Owner 福汇生物科技(广东)有限公司
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