Edible film with continuous antioxidant function and preparation method and application thereof

An edible film, anti-oxidation technology, applied in sustainable manufacturing/processing, climate change adaptation, climate sustainability, etc., can solve the problems of film mechanical properties and barrier properties, etc., to improve water permeability, simple preparation process, The effect of dense structure

Active Publication Date: 2014-11-12
内蒙古秋实生物有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition of emulsions or liposomes will have a certain negative impact on the mechanical properties and barrier properties of the membrane

Method used

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  • Edible film with continuous antioxidant function and preparation method and application thereof
  • Edible film with continuous antioxidant function and preparation method and application thereof
  • Edible film with continuous antioxidant function and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] In this embodiment, an edible film with sustained anti-oxidation function is provided, which includes, by mass percentage, 0.5-5% tea polyphenols, 1%-10% chitosan hydrochloride, 1.5 %~15% of sulfobutyl-β-cyclodextrin, and the rest is a natural edible biomacromolecule film-forming matrix, and the edible film is chitosan hydrochloride with different encapsulation rates and sizes of tea polyphenols Nanoparticles are added to the natural edible biomacromolecule film-forming matrix; wherein, the natural edible biomacromolecule film-forming matrix is ​​starch, chitosan, modified cellulose, carrageenan, pectin, tara gum One or more of sodium alginate, pullulan, whey protein, soy protein isolate, zein and wheat gluten.

[0028] A kind of preparation method of described edible film with continuous antioxidant function, its steps are:

[0029] (1) Preparation of chitosan hydrochloride nanoparticles with different tea polyphenol encapsulation efficiency and particle size:

[003...

Embodiment 2

[0036] (1) The preparation of chitosan hydrochloride nanoparticles with different tea polyphenol encapsulation efficiency and particle size is the same as in Example 1.

[0037] (2) Preparation of film-forming solution: after a certain amount of tara gum (mass concentration 2%) was stirred and dissolved at 35° C., glycerin was added as a plasticizer according to the mass ratio of 25% (tara gum). Mix 75 mL of nanoparticles prepared in step (1) with 25 mL of tara gum film-forming matrix solution, stir evenly, and centrifuge to degas.

[0038] (3) Preparation of film: Take a certain volume of the film-forming solution prepared in step (2) and pour it into a mold (10×10cm), dry it at 35°C for 24 hours, and place it in a constant temperature and humidity box (temperature 25°C, relative humidity 53 %) for at least 48 hours to obtain an edible film with sustained antioxidant function.

Embodiment 3

[0040] (1) The preparation of chitosan hydrochloride nanoparticles with different tea polyphenol encapsulation efficiency and particle size is the same as in Example 1.

[0041] (2) Preparation of film-forming solution: a certain amount of whey protein (mass concentration 6%) was stirred and dissolved at 80° C., cooled to room temperature, and glycerol was added as a plasticizer in a proportion of 30% (whey protein). Mix 75 mL of nanoparticles prepared in step (1) with 25 mL of whey protein film-forming matrix solution, stir evenly, and vacuum degas.

[0042] (3) Preparation of film: Take a certain volume of the film-forming solution prepared in step (2) and pour it into a mold (10×10cm), dry it at 30°C for 36h, and place it in a constant temperature and humidity box (temperature 25°C, relative humidity 53 %) for at least 48 hours to obtain an edible film with sustained antioxidant function.

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Abstract

The invention discloses an edible film with a continuous antioxidant function and a preparation method and application thereof. Preparation parameters of tea polyphenol-chitosan hydrochloride nanoparticles are adjusted, and the prepared chitosan hydrochloride nanoparticles with different tea polyphenol encapsulation rates and particle sizes are added to a natural edible biological macromolecular film formation matrix so as to form the film. On one hand, the different encapsulation rates can change the proportion of free tea polyphenol to encapsulated tea polyphenol in the film; on the other hand, the nanoparticles in different sizes can adjust structure compactness of the film, and therefore release of the tea polyphenol in the film is coordinated and controlled. According to the edible film with the continuous antioxidant function and the preparation method and the application of the edible film, when the antioxidant film is prepared, release of active substances can be adjusted under the condition that the concentration of the active substances is definite, and the use rate of the active substances in the film is increased.

Description

technical field [0001] An edible film with continuous anti-oxidation function and its preparation method and application, the invention belongs to the technical field of chitosan nanoparticles and anti-oxidation applications. Background technique [0002] As people pay more and more attention to environmental issues, it has become a new trend to use renewable resources to produce edible or degradable membrane materials instead of polymer synthetic membrane materials. Generally speaking, the edible film is a film prepared by a certain method using biological macromolecules (such as polysaccharides, proteins, etc.) as raw materials. It has a certain barrier performance to small molecule oxygen and water vapor in the environment, thereby protecting the wrapped food and effectively extending the shelf life of the food. Compared with traditional synthetic membrane materials, its advantages are: safe to use, biodegradable and edible. [0003] Edible films made of pure biological...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/02C08L5/08C08L1/08C08L5/00C08L5/06C08L5/04C08L89/00C08L5/16C08K5/13C08K5/053C08J5/18B65D65/46
CPCY02A40/90Y02W90/10
Inventor 钟芳李玥徐菲菲刘飞梁蓉麻建国
Owner 内蒙古秋实生物有限公司
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