Method for preparing microcapsules through embedding xanthophyll with starch

A lutein and microcapsule technology, applied in the food industry, can solve the problems of limited application, high energy consumption, unfavorable lutein protection, etc., and achieve favorable absorption and utilization, low energy consumption, stable intestinal targeting slow release effect

Inactive Publication Date: 2017-09-08
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent is composed of modified starch and natural colloid as a wall material, which requires the use of various emulsifiers. The use of emulsifiers limits its application in the fields of food and medicine, and the preparation process of the patented product needs to be spray-dried, which consumes energy. High, after high temperature heating, it is not conducive to the protection of lutein

Method used

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  • Method for preparing microcapsules through embedding xanthophyll with starch
  • Method for preparing microcapsules through embedding xanthophyll with starch
  • Method for preparing microcapsules through embedding xanthophyll with starch

Examples

Experimental program
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Effect test

Embodiment 1

[0047] The preparation of common corn starch lutein microcapsules comprises the following steps:

[0048] (1) Lutein dissolution: in mass fraction, 1 part of lutein standard product with a mass of 20 mg is dissolved in 5 parts of organic solvent, stirred at room temperature to make it evenly dispersed, and the organic solvent is ethanol;

[0049] (2) Expansion of ordinary cornstarch: in mass percentage, prepare 4% ordinary cornstarch slurry with distilled water, stir and mix, and heat it in a constant temperature water bath at 55°C for 1 hour, the starch granules expand and amylose overflows, forming expanded ordinary cornstarch ;

[0050] (3) mixing, embedding: in parts by mass, 1 part of lutein solution obtained in step (1) was added dropwise to 5 parts of the expanded common cornstarch slurry obtained in step (2) within 30min, and stirred Mixing, stirring at a speed of 300 rpm, and reacting in a constant temperature water bath at 55°C for 1 hour, so that the lutein can be ...

Embodiment 2

[0058] The preparation of potato starch lutein microcapsules comprises the following steps:

[0059] (1) Lutein dissolution: in terms of mass fraction, 1 part of lutein standard product with a mass of 20 mg is dissolved in 5 parts of organic solvents, and stirred at room temperature to make it uniformly dispersed; the organic solvent is ethanol;

[0060] (2) Potato starch expansion: in terms of mass fraction, prepare 6% potato starch slurry with distilled water, stir and mix, and react in a constant temperature water bath at 55°C for 1 hour to swell the starch and overflow the amylose to form expanded potato starch;

[0061] (3) mixing, embedding: 1 part of the lutein solution obtained in step (1) was added dropwise to 3 parts of the expanded potato starch slurry obtained in step (2) within 30min, stirred and mixed, and the stirring speed was 200rpm, And react in a constant temperature water bath at 65℃ for 1h, so that the lutein can be fully and evenly embedded by the amylose...

Embodiment 3

[0065] The preparation of common corn starch lutein microcapsules comprises the following steps:

[0066] (1) Lutein dissolution: in mass fraction, 1 part of the lutein standard product with a mass of 20 mg is dissolved in 5 parts of an organic solvent, stirred at room temperature to make it uniformly dispersed, and the organic solvent is ethanol;

[0067] (2) Expansion of ordinary corn starch: In terms of mass fraction, 6% ordinary corn starch slurry was prepared with distilled water, stirred and mixed, and reacted in a constant temperature water bath at 65°C for 1 hour to swell the starch granules and overflow the amylose to form expanded ordinary corn. starch;

[0068] (3) mixing, embedding: 1 part of the lutein solution obtained in step (1) was added dropwise to 5 parts of the expanded common cornstarch slurry obtained in step (2) in 30min, and the stirring speed was 300rpm. , and reacted in a constant temperature water bath at 65°C for 2 hours, so that the lutein can be ...

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Abstract

The invention discloses a method for preparing microcapsules by embedding lutein in starch. In this method, a certain concentration of starch milk is firstly heated and expanded for 0.5-2 hours to form expanded starch, and then the solvent containing lutein is added dropwise while keeping warm and stirred, reacted for 0.5-4 hours, cooled, and recrystallized at 4-25°C for 4-2 hours. After 12 hours, centrifuge, wash and dry to obtain lutein microcapsules. The content of lutein in the obtained lutein microcapsules is 2.40-2.54mg/g, and the lutein retention rate can reach 72.1% after the three-week storage stability test, and the release rate can reach 87.2% under the condition of human intestinal fluid, reaching The purpose of targeted intestinal slow-release is more conducive to the absorption and utilization of lutein by the human body. The method is simple, effective and energy-saving for embedding lutein, reduces production cost, enhances the protection of lutein during storage and transportation, has strong stability and good slow-release effect in human intestinal tract.

Description

technical field [0001] The invention relates to the embedding of lutein, in particular to a method for preparing microcapsules by embedding lutein in starch. For the purpose of intestinal and sustained release, it belongs to the field of food industry. Background technique [0002] Lutein (Lutein, C 40 H 56 O 2 ) is a natural pigment that widely exists in vegetables, flowers, fruits and other plants. The content of marigold is the most and belongs to the "carotenoid" family of substances. Lutein has multiple conjugated double bonds, has the ability to inhibit free radicals, and has physiological activities such as anti-oxidation, anti-cancer, protecting eyesight and reducing the incidence of cardiovascular diseases. In recent years, it has been widely used in the food and pharmaceutical industries. Lutein has poor water solubility and stability, and is easily degraded by environmental conditions such as light and oxygen, which limits its application. [0003] At present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L33/105A23L29/30A23P10/30A61K9/50A61K31/047
CPCA23L33/105A23L29/30A23P10/30A23V2200/00A61K9/5036A61K31/047
Inventor 黄强李松南张斌扶雄
Owner SOUTH CHINA UNIV OF TECH
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