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Preparation technology of polyunsaturated fatty acid microcapsule powder

A technology of unsaturated fatty acid and microcapsule powder, applied in the field of food processing, can solve the problems of oil leakage, oxidation, heavy fishy smell, etc., and achieve the effects of reducing addition, improving emulsifying activity and preventing fishy smell

Active Publication Date: 2022-07-26
浙江远大生物科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the wall materials used at home and abroad mainly include: protein (including whey protein isolate, sodium caseinate, etc.), carbohydrates (dextrin, glucose, etc.), octenyl succinic acid starch ester, Maillard reaction product etc., and these wall materials only form a simple emulsion with oil, which is prone to oil leakage and oxidation, and has a strong fishy smell

Method used

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  • Preparation technology of polyunsaturated fatty acid microcapsule powder
  • Preparation technology of polyunsaturated fatty acid microcapsule powder
  • Preparation technology of polyunsaturated fatty acid microcapsule powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Step 1. After mixing 1 weight part of water and 2 weight parts of DHA (docosahexaenoic acid) algal oil, adjust the pH value to 5, add lipase to it and stir at a temperature of 35 ° C, while stirring Filling with nitrogen, reacting for 3h to obtain a first mixed solution, and mixing the first mixed solution with KOH-ethanol solution to obtain a second mixed solution;

[0030] Step 2, after adding n-hexane to the second mixed solution and shaking, to obtain the upper layer solution and lower layer solution containing glycerol DHA ester, get the upper layer solution and carry out vacuum distillation for 20min to obtain glycerol DHA ester;

[0031] Step 3: After adjusting the pH value of the lower layer solution to 1, add n-hexane to obtain an extract phase, dehydrate the extract phase and dry it with nitrogen to obtain free fatty acid, mix 3.5-10 parts by weight of free fatty acid and maltodextrin and add it to water And adjust the pH value to 7, then add lipase and stir f...

Embodiment 2

[0036] Step 1. After mixing 1 weight part of water and 7 weight parts of DHA algae oil, adjust the pH value to 8, add lipase to it and stir at a temperature of 55 ° C, fill with nitrogen while stirring, and the reaction obtains the first. Mixed solution, the first mixed solution is mixed with KOH-ethanol solution to obtain the second mixed solution;

[0037] Step 2, after adding n-hexane to the second mixed solution and shaking, the upper layer solution and the lower layer solution of glycerol DHA ester are obtained, and the upper layer solution is taken and subjected to vacuum distillation for 20min to obtain glycerol DHA ester;

[0038] Step 3. After adjusting the pH value of the lower layer solution to 3, add n-hexane to obtain an extraction phase, dehydrate the extraction phase and dry it with nitrogen to obtain free fatty acid, mix 10 parts by weight of free fatty acid and maltodextrin, add water and adjust The pH value reached 9.5, then lipase was added and stirred for 1...

Embodiment 3

[0043] Step 1. After mixing 1 weight part of water and 5 weight parts of DHA algae oil, adjust the pH value to 7, add lipase to it and stir at a temperature of 45 ° C, fill with nitrogen while stirring, and the reaction obtains the first. Mixed solution, the first mixed solution is mixed with KOH-ethanol solution to obtain the second mixed solution;

[0044] Step 2, after adding n-hexane to the second mixed solution and shaking, to obtain the upper layer solution and lower layer solution containing glycerol DHA ester, get the upper layer solution and carry out vacuum distillation for 20min to obtain glycerol DHA ester;

[0045] Step 3. After adjusting the pH value of the lower layer solution to 2, add n-hexane to obtain an extraction phase, dehydrate the extraction phase and dry it with nitrogen to obtain free fatty acid, mix 8 parts by weight of free fatty acid and maltodextrin, add water and adjust The pH value reached 8, then lipase was added and stirred for 10 hours at a t...

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Abstract

The invention discloses a preparation process of polyunsaturated fatty acid microcapsule powder, comprising the following steps: mixing water and polyunsaturated fatty acid, adding lipase, and adding n-hexane to obtain an upper layer solution and a lower layer solution. The upper layer solution is distilled under reduced pressure to obtain glycerol polyunsaturated fatty acid oil; the lower layer solution is dehydrated to obtain free fatty acid, which is mixed with maltodextrin, and the oil maltodextrin ester is obtained after inactivating the enzyme; the glycerol polyunsaturated fatty acid oil is mixed with tocopherol and then sheared , to obtain a mixed material; the fat maltodextrin ester is made into a wall material, and the third mixed solution is obtained by dissolving in water. The mixed material is mixed with the third mixed liquid and emulsified, and is obtained by shearing, homogenizing and spray drying. The polyunsaturated fatty acid microcapsule powder prepared by the invention has excellent anti-oxidation performance, does not add exogenous surfactant, and also effectively improves the oxidative stability of the polyunsaturated fatty acid in the storage period and prolongs the shelf life of the product.

Description

technical field [0001] The invention relates to the field of food processing, in particular to a preparation process of polyunsaturated fatty acid microcapsule powder. Background technique [0002] DHA (Docosahexaenoic acid), commonly known as brain gold, has the functions of softening blood vessels, strengthening brain and improving eyesight. It is an unsaturated fatty acid very important to the human body and belongs to the omega-3 unsaturated fatty acid family. important members. DHA is a main component of the growth and maintenance of cells in the nervous system. It is an important component of the brain and retina. The content of DHA in the human cerebral cortex is as high as 20%, and it accounts for the largest proportion in the retina of the eye. Therefore, it is very important for fetal intelligence and vision. Development is critical. [0003] EPA (eicosapentaenoic acid) has the function of cleaning up the garbage (cholesterol and triglyceride) in the blood vessel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L33/12A23P10/30A23P10/35
CPCA23L33/12A23P10/30A23P10/35A23V2002/00A23V2200/30A23V2250/186A23V2250/187A23V2250/1862
Inventor 陈利梅张军桥李德茂杜艳陈吴西张明郭蔚
Owner 浙江远大生物科技有限公司
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