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Structural type triglyceride rich in medium-chain fatty acid and preparation method thereof

A technology for medium-chain fatty acids and triglycerides, which is applied in the field of structural triglycerides rich in medium-chain fatty acids and its preparation, can solve the problems of no structural triglycerides and low content of structural triglycerides, and achieve Facilitate nutrient absorption, shorten reaction time, and reduce production cost

Active Publication Date: 2015-10-21
XIAMEN SHUANGBEI BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, the above oil composition does not have a specific structural triglyceride composition, or the content of structural triglycerides is relatively low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Add 9 g of the reaction substrate glycerin, 30 g of lauric acid, and 57 g of palmitic acid into 1 L of n-hexane, then add 9.6 g of Novozyme 435 lipase and mix well. The reaction temperature was 50°C, and the reaction was carried out for 10 hours. After the reaction was completed, the n-hexane was removed, and then the free fatty acid was removed. Take 80g of the obtained product, add 180g of oleic acid, then add 8g of Novozyme TL IM lipase, mix in a three-necked flask, control the stirring speed at 120rpm, the reaction temperature is 55°C, and the reaction time is 24h. The lipase used for catalysis can be recovered by centrifugation and can be reused In the above catalytic reaction, the content of lauric acid in the product after separation and purification is 17.1%, the content of palmitic acid is 37.6%, the content of oleic acid is 45.3%, and the Sn-2 lauric acid in the triglyceride accounts for 67.2% of the total lauric acid content. Sn-2 palmitic acid content accoun...

Embodiment 2

[0042] Mix 90g of glycerin, 340g of capric acid and 510g of palmitic acid as the reaction substrate in a three-necked flask, then add 4.7g of concentrated sulfuric acid, control the stirring speed at 300rpm, the reaction temperature at 140°C, and the reaction time for 6h. concentrated sulfuric acid to obtain mixed triglycerides. Take 800g of the obtained product, add 1100g of oleic acid, 1100g of linoleic acid, and then add 60g of Novozyme RM IM lipase, mix well in a three-necked flask, control the stirring speed at 90rpm, the reaction temperature is 45°C, the reaction time is 16h, and the natural sedimentation recovery The lipase used for catalysis can be repeatedly used in the above catalytic reaction. After separation and purification, the content of capric acid in the product is 20.3%, the content of palmitic acid is 24.5%, the content of oleic acid is 27.2%, and the content of linoleic acid is 28%. Sn-2-position capric acid accounts for 62.1% of the total capric acid cont...

Embodiment 3

[0044] The reaction substrate glycerin 92g, lauric acid 200g, and palmitic acid 510g were mixed in a three-necked flask, and then 35g of solid acid was added / ZrO 2 , Reacted at 180°C for 6h, after the reaction was completed, the solid acid used in the catalysis was removed by hot filtration to obtain mixed triglycerides. Take 500g of the obtained product, add 900g of linoleic acid, then add 42g of LS-20 lipase, mix well in a three-necked flask, control the stirring speed at 60rpm, the reaction temperature at 60°C, and the reaction time for 8h, remove the lipase by filtration and remove It can be used repeatedly for the above catalytic reaction. After separation and purification, the content of lauric acid in the product is 16.1%, the content of palmitic acid is 35.7%, and the content of oleic acid is 48.2%. 60.1%, Sn-2 palmitic acid content accounts for 73.9% of the total palmitic acid content, Sn-1, 3-position oleic acid accounts for 85.7% of the total oleic acid content, ...

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Abstract

The invention provides a structural type triglyceride rich in medium-chain fatty acid and a preparation method thereof. The provided triglyceride is prepared from medium-chain fatty acid with a carbon number of 8-12, palmitic acid, glycerin, and long-chain unsaturated fatty acid / fatty acid ester through catalytic reactions. In the provided triglyceride, medium-chain fatty acid accounts for 11 to 40 wt% of total fatty acid; Sn-2 position saturated fatty acid accounts for 52 to 80 wt% of total saturated fatty acid; Sn-1,3 position unsaturated fatty acid accounts for 80 to 95 wt% of total unsaturated fatty acid, the content of Sn-USU type triglyceride is 40 to 80%, and the content of triglyceride palmitate is 3 to 8%. The provided triglyceride has the characteristics of medium-chain triglyceride and long-chain triglyceride; compared with the common medium / long-chain fatty acid edible oil, the provided triglyceride has richer structures, according to the product characteristics, and the provided triglyceride can be used as a food nutrient supplement and added in different food formulas. The preparation method has the characteristics of high production efficiency, low energy consumption, mild reaction conditions, little using amount of enzyme, more precise procedure, and effectively-reduced cost.

Description

technical field [0001] The invention relates to the field of functional foods, in particular to a structural triglyceride rich in medium-chain fatty acids and a preparation method thereof. Background technique [0002] Functional structural fat is a kind of fat with special nutritional and physiological functions, and has health care, medicinal and healthy effects on the human body. It belongs to dietary oil, which has positive effects on sub-health syndromes such as diabetes, heart disease, high blood pressure, etc., and is an important part of functional food. Both unsaturated fatty acid oils and emerging structural lipids are important components of functional structural lipids. [0003] Unsaturated fatty acids include linoleic acid (L), linolenic acid (Ln), eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), and the like. Structural lipids include monoglycerides, diglycerides, triglycerides, etc. with special structures. For example, 1,3-dioleic acid-2-palmitic a...

Claims

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Application Information

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IPC IPC(8): C12P7/64
CPCC12P7/6454C12P7/6472
Inventor 邓利龚一鸣聂开立胡永员
Owner XIAMEN SHUANGBEI BIOTECH CO LTD
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