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Preparation method of high-purity medium-long-chain fatty acid grease

A technology for medium and long-chain fatty acids and fatty acid triglycerides is applied in the field of preparation of high-purity medium and long-chain fatty acid oils, and can solve the problems of low product purity and the like

Inactive Publication Date: 2018-11-09
张培培
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are still about 23-27% by-products in its products, and the product purity is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (a) Put the caprylic triglyceride after purification and the long-chain fatty acid triglyceride rapeseed oil, borage oil, pine nut oil, fish oil extract after purification into the closed container (with lipase collecting device) reactor, wherein Caprylic acid triglycerides account for 40% of the total triglycerides, and long-chain fatty acid triglycerides account for 60% of the total triglycerides. Novozymes 435 immobilized lipase and vitamin E are added, and Novozymes 435 is immobilized The amount of lipase added is 6% of the total triglycerides, the amount of vitamin E added is 0.1‰ of the total triglycerides, the transesterification reaction is carried out at a temperature of 50°C, the vacuum is 120Pa, and the reaction is 20 hours , terminate the reaction to obtain material 1;

[0028](b) Purify the material 1 obtained in the step (a) at a temperature of 200° C. in dry steam, deacidify, deodorize, and deactivate the enzyme activity of mid-chain residues to obtain th...

Embodiment 2

[0031] (a) The purified capric triglyceride and the purified long-chain fatty acid triglyceride corn germ oil, wheat germ oil, ethyl ester fish oil, algae oil DHA, pumpkin seed oil, lycopene oil, xanthan fruit oil Put into ultrasonic fixed-bed reactor, wherein capric acid triglyceride accounts for 50% of triglyceride total amount, long-chain fatty acid triglyceride accounts for 50% of triglyceride total amount, adds Purolite 435 immobilized lipase and Vitamin E, in which the addition of Purolite 435 immobilized lipase is 8% of the total triglycerides, the addition of vitamin E is 0.15‰ of the total triglycerides, and the transesterification is carried out at a temperature of 80°C Reaction, vacuum degree is 130Pa, reaction is 26 hours, terminates reaction, obtains material 1;

[0032] (b) Purifying the material 1 obtained in step (a) at a temperature of 250° C. with dry steam, deacidifying, deodorizing, and deactivating the enzyme activity of mid-chain residues to obtain the ta...

Embodiment 3

[0035] (a) the purified compound medium-chain fatty acid triglyceride (comprising caprylic triglyceride 57%, capric triglyceride 43%) and purified long-chain fatty acid triglyceride grape seed oil, linseed oil, Perilla seed oil, algae oil DHA, seal oil, evening primrose oil, and ingot maple oil were put into the ultrasonic packed column reactor, in which medium-chain fatty acid triglycerides accounted for 60% of the total triglycerides, and long-chain fatty acid glycerol Triglycerides account for 40% of the total triglycerides, adding immobilized lipase TM, RM enzyme and vitamin E, wherein the addition of immobilized lipase TM, RM enzyme is 10% of the total triglycerides, vitamin E The addition amount is 0.2‰ of the total amount of triglycerides, the transesterification reaction is carried out at a temperature of 55°C, the vacuum degree is 160Pa, the reaction is completed for 34 hours, and the reaction is terminated to obtain material 1;

[0036] (b) Purify the material 1 obta...

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PUM

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Abstract

The invention provides a preparation method of high-purity medium-long-chain fatty acid grease. The preparation method comprises the following steps: using purified 8 to 10 carbon medium-chain fatty acid triglyceride and purified 14 to 24 carbon long-chain fatty acid triglyceride as raw materials, adding lipase which is 2 to 10 percent of the total amount of triglyceride, combining the medium-chain and long-chain fatty acid onto one oleic molecules by adopting a lipase-to-esterification technology, performing a reaction at 40 to 85 DEG C for 15 to 34 hours, purifying a reaction product at 190to 260 DEG C, deacidifying, deodorizing, removing medium-chain residual groups, passivating the enzyme activity, and obtaining the high-purity medium-long-chain fatty acid grease. By virtue of the preparation method provided by the invention, the high-purity medium-long-chain fatty acid grease can be prepared. The preparation method has the characteristics of short reaction time, low energy consumption, and more suitability for multi-direction application.

Description

technical field [0001] The invention relates to the field of transesterification processing of fats and oils, in particular to a preparation method of high-purity medium and long-chain fatty acid fats and oils. Background technique [0002] In the past more than half a century, long-chain fatty acids (LCT) have been used as an indispensable nutritional component of parenteral nutrition in treatment, among which long-chain fatty acids with carbon numbers between 14 and 24 can provide patients with essential fatty acids and Calorie, the disadvantage is that the metabolism of long-chain fatty acids in the body is slow, the energy supply is not timely, and the clinical side effects form fatty liver and thrombosis, which cannot meet the needs of postoperative patients, children, and special groups with incomplete digestion and energy supply. Medium-chain fatty acids (MCT) can directly enter the mitochondria and quickly oxidize for energy, but medium-chain fatty acids cannot provi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23D9/04
CPCA23D9/04C11C3/10
Inventor 刘宪军来创业苑洪德王延荣刘宝华苑海鹏苑海祥
Owner 张培培
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