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Linseed oil microcapsule powder and its prepn

A technology of linseed oil and microcapsules, which is applied in the field of linseed oil microcapsule powder and its preparation, can solve problems such as poor fluidity and agglomeration, achieve the effects of increasing stability, convenient storage and transportation, and improving bioavailability

Inactive Publication Date: 2007-08-22
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a kind of linseed oil microcapsule powder and preparation method thereof, use single sodium starch octenyl succinate as capsule material, carry out microencapsulation to linseed oil at lower temperature, solve the problem of containing linseed oil The problems of agglomeration and poor fluidity of powder products, so as to prepare a linseed oil microcapsule powder with high stability, good fluidity, and better maintenance of linseed oil activity

Method used

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preparation example Construction

[0022] The preparation method of linseed oil microcapsule powder of the present invention is characterized in that: preparation method is made up of following steps:

[0023] 1) Weigh 0.6 to 9 parts by weight of sodium starch octenyl succinate and add it to water, and stir at 70 to 80°C until the sodium starch octenyl succinate is completely dissolved to form 30% to 60% of octenyl succinic acid Sodium starch solution.

[0024] 2) Cool down the aqueous solution of starch sodium octenyl succinate formed in 1) to 30-40° C., then add 1 part by weight of linseed oil to the solution, and stir to form a uniform emulsion.

[0025] 3) Pass the emulsion formed in 2) through a high-pressure homogenizer for 3-8 times under a pressure of 500-1500 bar to form an emulsion with an average particle size of linseed oil less than 1000 nm.

[0026] 4) Spray-dry and granulate the emulsion formed in 3) to obtain linseed oil microcapsule powder; or freeze-dry the emulsion formed in 3), and then sub...

Embodiment 1

[0029] Example 1 Weigh 0.6 parts by weight of sodium starch octenyl succinate and add 2 parts by weight of water, stir at 70°C to form an aqueous solution of sodium starch octenyl succinate; cool the solution to 40°C, and then add Add 1 part by weight of linseed oil, and continue to stir until linseed oil colostrum is formed; then the colostrum is homogenized under high pressure for 3 times under 1500 bar pressure to form a milky white emulsion; finally, the milky white emulsion is spray-dried to obtain white linseed oil microcapsule powder , the inlet air temperature is 190°C, and the outlet air temperature is 50°C. The average particle diameter of the milky white emulsion measured by a laser particle size analyzer is 718nm.

Embodiment 2

[0030] Example 2 Weigh 1 part by weight of sodium starch octenyl succinate and add 3 parts by weight of water, and stir at 75°C to form an aqueous solution of sodium starch octenyl succinate; cool the solution to 35°C, and then add Add 1 part by weight of linseed oil, and continue to stir until linseed oil colostrum is formed; then the colostrum is homogenized under high pressure for 4 times under 800 bar pressure to form a milky white emulsion; finally, the milky white emulsion is spray-dried to obtain white linseed oil microcapsule powder , the inlet air temperature is 190°C, and the outlet air temperature is 40°C. The average particle diameter of the milky white emulsion measured by a laser particle size analyzer is 602 nm.

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Abstract

The present invention is linseed oil microcapsule powder and its preparation, and features that modified polysaccharide, sodium octyl alkenyl succinate starch, is used as capsule wall material for forming microcapsule in preparing linseed oil microcapsule powder. The preparation process includes adding linseed oil into the solution of sodium octyl alkenyl succinate starch, stirring to form homogeneous emulsion, high pressure homogenizing to obtain linseed oil emulsion of granularity smaller than 1000 nm, and final spray drying or freeze drying to obtain white linseed oil microcapsule powder with high stability and high flowability. The linseed oil microcapsule powder has high linseed oil activity, high stability and high bioavailability, and may be applied in food and health product.

Description

technical field [0001] The invention relates to the field of food and health products, in particular to linseed oil microcapsule powder and a preparation method thereof. Background technique [0002] Flax oil is mainly extracted from flax, which is mainly distributed in North China and Northwest China. The linseed oil obtained by pressing flax mainly contains unsaturated fatty acids such as linolenic acid, and contains more than 50% of α-linolenic acid. [0003] Human daily essential fatty acids include saturated fatty acids and monovalent unsaturated fatty acids, linoleic acid (omega-6 series) and α-linolenic acid series (omega-3 series), the human body can synthesize saturated fatty acids and monovalent unsaturated fatty acids , but cannot synthesize linoleic acid and α-linolenic acid, and can only be ingested from food. α-linolenic acid has the functions of inhibiting allergic reactions and anti-inflammation, protecting eyesight, enhancing intelligence, improving memory,...

Claims

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Application Information

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IPC IPC(8): A61K9/50A61K31/201A61K47/36A23L1/29B01J13/02A23L33/00
Inventor 段明星周华锋郑昌学陈斌
Owner TSINGHUA UNIV
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