Lutein micro-capsule preparation and preparation method thereof

A technology of lutein and microcapsules, which is applied in the field of lutein microcapsule preparations and its preparation, can solve the problem that it is difficult to ensure the food safety and biological activity of lutein microcapsules from the source, and it is difficult to improve the antioxidant activity clearance rate of lutein microcapsules. Lutein microcapsules can not be really applied, etc., to achieve the effect of increasing aggregation and adsorption, good water solubility, and improving solution viscosity

Inactive Publication Date: 2012-02-22
NANJING AGRICULTURAL UNIVERSITY
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult for this kind of natural colloid to significantly improve the water solubility and stability of lutein as a single wall material, and its application is still subject to certain restrictions
[0007] In the process of preparing lutein microcapsules, researchers usually use emulsifiers such as Yewen series, OP series, and Span series to evenly disperse lutein. These chemical emulsifiers have certain food safety hazards; Accelerate the dispersion of lutein into the solution system, and use complex emulsifiers composed of cellulose, sugar, vegetable gum, protein, etc. to achieve good emulsification effect, but it is difficult to ensure the food safety and biological activity of lutein microcapsules from the source. The prepared lutein microcapsules cannot really be used in the field of food and agricultural product processing
[0008] In addition, in the existing process of preparing lutein microcapsules, a large amount of organic solvents are usually used for emulsification, embedding, dispersion, and solution preparation, etc., which will destroy the biological activity of lutein to a certain extent, and the antioxidant capacity of lutein microcapsules Sexual activity and OH - and O 2 ·- It is difficult to improve the clearance rate of lutein microcapsules and cause toxic residues of lutein microcapsules

Method used

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  • Lutein micro-capsule preparation and preparation method thereof
  • Lutein micro-capsule preparation and preparation method thereof
  • Lutein micro-capsule preparation and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Dissolve 300mg of lutein in ethanol, add 300mg of compound emulsifier (1:1 ratio of sucrose ester: soybean lecithin), stir to dissolve and emulsify, add 1500mg of porous starch to it, and absorb to saturation. At the same time, take 1500mg of gelatin and dissolve it in hot water above 60°C, stir to dissolve and prepare a gelatin solution with a concentration of 10%, let it stand at a constant temperature for more than 30 minutes until it is transparent and uniform, add the gelatin solution into the lutein emulsion, and stir evenly at a temperature of 50°C 1.5h to get lutein microcapsule suspension.

[0040] Further, pass the obtained suspension of lutein microcapsules through a homogenizer (the high-pressure gauge of the homogenizer is 30-60MPa, and the low-pressure gauge is 3-20MPa), and then the homogenized suspension is mixed at a rate of 50mL / min. Feed speed, at an inlet temperature of 170°C, 40m 3 Spray drying is carried out under the flow rate of hot air per hour...

Embodiment 2

[0042] Dissolve 300mg of lutein in ethanol, add 300mg of complex emulsifier (1:2 ratio of sucrose ester: soybean lecithin), stir to dissolve and emulsify, add 3000mg of porous starch to it, and absorb to saturation. At the same time, take 3000mg of gelatin and dissolve it in hot water above 60°C, stir to dissolve and prepare a gelatin solution with a concentration of 20%, let it stand at a constant temperature for more than 30 minutes until it is transparent and uniform, add the gelatin solution into the lutein emulsion, and stir evenly at a temperature of 50°C 1h to get lutein microcapsule suspension.

[0043] Further, pass the obtained suspension of lutein microcapsules through a homogenizer (the high-pressure gauge of the homogenizer is 30-60MPa, and the low-pressure gauge is 3-20MPa), and then the homogenized suspension is mixed at a rate of 60mL / min. Feed speed, at an inlet temperature of 170°C, 50m 3 Spray drying is carried out under the flow rate of hot air per hour, t...

Embodiment 3

[0045] Dissolve 300mg of lutein in ethanol, add 300mg of compound emulsifier (1:3 ratio of sucrose ester: soybean lecithin), stir to dissolve and emulsify, add 6000mg of porous starch to it, and absorb to saturation. At the same time, take 3000mg of gelatin and dissolve it in hot water above 60°C, stir to dissolve and prepare a gelatin solution with a concentration of 30%, let it stand at a constant temperature for more than 30 minutes until it is transparent and uniform, add the gelatin solution into the lutein emulsion, and stir evenly at a temperature of 50°C 2h to get lutein microcapsule suspension.

[0046] Further, the obtained lutein microcapsule suspension is passed through a homogenizer (the high pressure gauge of the homogenizer is 30-60MPa, and the low pressure gauge is 3-20MPa), and then the homogenized suspension is mixed at a rate of 70mL / min. Feed speed, at an inlet temperature of 170°C, 60m 3 Spray drying is carried out under the flow rate of hot air per hour,...

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Abstract

The invention discloses a lutein micro-capsule preparation, which adopts lutein as core material, adopts granulesten and sucrose ester as composite emulsifying agent and adopts gelatin and porous starch as composite wall material. The invention further discloses a preparation method id the lutein micro-capsule preparation. The lutein micro-capsule is obviously improved in water-solubility and stability, is high in bioactivity, and has more than 60% clearance rate on OH- and O2.-. Compared with free lutein the lutein micro-capsule can be directly dissolved in water, heat resistance and acid-base resistance are respectively improved by 50%, and illumination and oxygen resistance capability are respectively by 37% and 20%. Under the conditions of 100DEG C high temperature, 70% oxygen, high potential of hydrogen (PH1-PH12) and long-term illumination (reaching 30 days), retention rate of the lutein can still be maintained to more than 90%.

Description

technical field [0001] The invention relates to a lutein microcapsule preparation and a preparation method thereof, belonging to the field of food and agricultural product processing. Background technique [0002] The advantages of natural pigments in terms of natural coloring, safety, and multiple biological functions have become a hot spot in international development today. my country is rich in plant resources, and the preparation and use of natural pigments have been paid more and more attention. However, there are not many types of natural pigments that are truly commercialized, and their coloring power and biological activity are easily affected during use. It is of great practical significance to research and develop new natural pigments, broaden their application fields, and make them industrialized. [0003] As "plant gold", lutein is a kind of oxygen-containing carotenoid widely present in vegetables, flowers and fruits, especially in bananas, corn and marigolds....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L1/09
Inventor 陆兆新王昱沣别小妹吕凤霞张充
Owner NANJING AGRICULTURAL UNIVERSITY
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