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Double-crosslinked Pickering emulsion and preparation method and application thereof

A Pickering emulsion, double cross-linking technology, applied in the application, function of food ingredients, food ingredients as antioxidants, etc., can solve the problems of thermodynamic instability, droplet fusion emulsion instability, affecting application, etc. Excellent oxidative power, improved texture properties, and improved recovery effects

Active Publication Date: 2020-07-03
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the Pickering emulsions prepared by domestic and foreign research institutes are all thermodynamically unstable systems. The high fluidity of the emulsion will increase the collision between droplets, resulting in the instability of droplet fusion emulsion.
Therefore, the freeze-drying stability of the emulsion is limited, which will affect its application in commercial food
Based on the research status at home and abroad, there is no relevant report on the preparation of gliadin-sodium alginate complex stabilized Pickering emulsion by double cross-linking

Method used

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  • Double-crosslinked Pickering emulsion and preparation method and application thereof
  • Double-crosslinked Pickering emulsion and preparation method and application thereof
  • Double-crosslinked Pickering emulsion and preparation method and application thereof

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Embodiment 1

[0035]This embodiment is a preparation method of a double-crosslinked Pickering emulsion of the present invention, the preparation method of a double-crosslinked Pickering emulsion is the pictorial composition of gliadin-sodium alginate composite particles The preparation method of forest emulsion, comprises the steps:

[0036] (1) Preparation of gliadin (Gliadin)-curcumin (curcumin) mixed solution: Weigh 4g Gliadin, add 70% (v / v) ethanol to make gliadin solution, then add 0.02g curcumin ( Curcumin), stirred magnetically until the solution was clear, and hydrated at 4°C for more than 8 hours to obtain a mixed solution of gliadin-curcumin (Gliadin-Cur);

[0037] (2) Preparation of sodium alginate (sodium alginate) stock solution: Weigh 0.1g of sodium alginate (SA) sample and dissolve it in 100mL of 0.05M pH7.0 phosphate buffer, and configure it to 0.1% (w / v) Sodium alginate stock solution, stored in cold storage;

[0038] (3) Preparation of curcumin-loaded gliadin suspension:...

Embodiment 2

[0041] The present embodiment is the preparation method of a kind of double-crosslinked Pickering emulsion of the present invention, and the preparation method of the described a kind of double-crosslinked Pickering emulsion is calcium ion (Ca 2+ ) The preparation method of the Pickering emulsion cross-linked with transglutaminase (TGase), comprising the steps:

[0042] (1) Preparation of gliadin (Gliadin)-curcumin (curcumin) mixed solution: Weigh 4g Gliadin, add 70% (v / v) ethanol to make gliadin solution, then add 0.02g curcumin ( Curcumin), stirred magnetically until the solution was clear, and hydrated at 4°C for more than 8 hours to obtain a mixed solution of gliadin-curcumin (Gliadin-Cur);

[0043] (2) Preparation of sodium alginate (sodium alginate) stock solution: Weigh 0.1g of sodium alginate (SA) sample and dissolve it in 100mL of 0.05M pH7.0 phosphate buffer, and configure it to 0.1% (w / v) Sodium alginate stock solution, refrigerated at 4°C;

[0044] (3) Preparatio...

Embodiment 3

[0047] This embodiment is a preparation method of a double-crosslinked Pickering emulsion of the present invention, the preparation method of a double-crosslinked Pickering emulsion is the pictorial composition of gliadin-sodium alginate composite particles The preparation method of forest emulsion, comprises the steps:

[0048] (1) Preparation of gliadin (Gliadin)-curcumin (curcumin) mixed solution: Weigh 4g Gliadin, add 65% (v / v) ethanol to make gliadin solution, then add 0.02g curcumin ( Curcumin), magnetically stirred until the solution was clear, and hydrated at 1°C for more than 8 hours to obtain a gliadin-curcumin (Gliadin-Cur) mixed solution;

[0049] (2) Preparation of sodium alginate (sodium alginate) stock solution: Weigh 0.1g of sodium alginate (SA) sample and dissolve it in 100mL of 0.05M pH7.0 phosphate buffer, and configure it to 0.1% (w / v) Sodium alginate stock solution, refrigerated at 1°C;

[0050] (3) Preparation of curcumin-loaded gliadin suspension: take...

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Abstract

The invention relates to a double-crosslinked Pickering emulsion and a preparation method and application thereof, and belongs to the field of modern healthy food processing. The invention provides apreparation method of a double-crosslinked Pickering emulsion. The preparation method of the double-crosslinked Pickering emulsion comprises a preparation method of a Pickering emulsion of gliadin-sodium alginate composite particles and a Pickering emulsion formed by crosslinking calcium ions and glutamine transaminase. The method comprises the following steps: preparing a gliadin-curcumin mixed solution; preparing a sodium alginate stock solution; preparing a curcumin-loaded gliadin suspension; and acquiring the Pickering emulsion of the gliadin-sodium alginate composite particles or the Pickering emulsion formed by crosslinking the calcium ions and the glutamine transaminase. According to the invention, the curcumin-loaded composite particles are constructed by utilizing gliadin and sodium alginate for the first time to form the stable Pickering emulsion, and the Pickering emulsion can be used for embedding food nutrient substances.

Description

technical field [0001] The invention relates to a double-crosslinked Pickering emulsion and its preparation method and application, belonging to the field of modern health food processing. Background technique [0002] At present, due to the unreasonable diet caused by the fast lifestyle, the overall sub-health state of the social population has been caused, which has received widespread attention. People's concern for health has increased to the demand for health food. However, most of the active substances with health effects, such as curcumin and polyphenols, have disadvantages such as poor water solubility and instability. Therefore, it is often necessary to construct a carrier to carry them. address such disadvantages. In order to meet people's needs, it is of great significance to construct food-grade transportation systems with different scales such as nanoparticles and emulsions. [0003] At present, Pickering emulsion has become a research hotspot, but because Pic...

Claims

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Application Information

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IPC IPC(8): A23L29/00A23L29/30A23L33/105
CPCA23L29/045A23L29/30A23L29/015A23L29/06A23L33/105A23V2002/00A23V2200/30A23V2200/02A23V2250/5486A23V2250/2112A23V2250/5026A23V2250/18A23V2250/1582A23V2250/1578A23V2250/54Y02A40/90
Inventor 袁杨王号
Owner GUANGZHOU UNIVERSITY
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