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A kind of antibacterial nanocomposite edible film and preparation method thereof

A nano-composite, edible technology, applied in the direction of flexible coverings, packaging, wrapping paper, etc., can solve the problems of edible film mechanical properties, barrier properties and antibacterial properties that are difficult to balance, to improve antibacterial activity and scope of application, and cost Inexpensive and safe to eat

Inactive Publication Date: 2017-12-19
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an antibacterial nanocomposite edible film, thereby solving the technical problem that the mechanical properties, barrier properties and antibacterial properties of the edible film are difficult to balance in the prior art

Method used

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  • A kind of antibacterial nanocomposite edible film and preparation method thereof
  • A kind of antibacterial nanocomposite edible film and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0028] The antibacterial nanocomposite edible film of this embodiment comprises the following components by mass: 10 parts of sodium alginate, 0.25 parts of nano-montmorillonite, 15.75 parts of clove essential oil, and 3.94 parts of Tween 80.

[0029] The preparation method of the antibacterial nanocomposite edible film of the present embodiment comprises the following steps:

[0030] 1) Dissolve 10 g of sodium alginate in 1000 ml of distilled water to obtain a sodium alginate solution; disperse 0.25 g of nano-montmorillonite in 50 ml of distilled water, and stir at room temperature for 20 hours to obtain a dispersion of nano-montmorillonite;

[0031] 2) adding the sodium alginate solution to the nano-montmorillonite dispersion, stirring for 3 hours to obtain a mixed solution;

[0032] 3) Add the mixture of clove essential oil and Tween 80 (obtained by mixing 15.75g clove essential oil with 3.94g Tween 80 in advance) to the mixed liquid obtained in step 2), and disperse evenly...

Embodiment 2

[0035] The antibacterial nanocomposite edible film of this embodiment includes the following components by mass: 12 parts of sodium alginate, 0.36 parts of nano-montmorillonite, 18.9 parts of clove essential oil, and 4.72 parts of Tween 80.

[0036] The preparation method of the antibacterial nanocomposite edible film of the present embodiment comprises the following steps:

[0037]1) 12g of sodium alginate was dissolved in 1000ml of distilled water to obtain a sodium alginate solution; 0.36g of nano-montmorillonite was dispersed in 50ml of distilled water, and stirred at room temperature for 22 hours to obtain a nano-montmorillonite dispersion;

[0038] 2) adding the sodium alginate solution to the nano-montmorillonite dispersion, stirring for 4 hours to obtain a mixed solution;

[0039] 3) Add the mixture of clove essential oil and Tween 80 (obtained by mixing 18.9g clove essential oil with 4.72g Tween 80 in advance) to the mixed liquid obtained in step 2), and disperse even...

Embodiment 3

[0042] The antibacterial nanocomposite edible film of this embodiment includes the following components by mass: 15 parts of sodium alginate, 0.525 parts of nano-montmorillonite, 21 parts of clove essential oil, and 5.25 parts of Tween 80.

[0043] The preparation method of the antibacterial nanocomposite edible film of the present embodiment comprises the following steps:

[0044] 1) 15g of sodium alginate was dissolved in 1000ml of distilled water to obtain a sodium alginate solution; 0.525g of nano-montmorillonite was dispersed in 50ml of distilled water, and stirred at room temperature for 24 hours to obtain a nano-montmorillonite dispersion;

[0045] 2) adding the sodium alginate solution to the nano-montmorillonite dispersion, stirring for 5 hours to obtain a mixed solution;

[0046] 3) Add a mixture of clove essential oil and Tween 80 (21g of clove essential oil and 5.25g of Tween 80 in advance) to the mixed liquid obtained in step 2), and disperse evenly to obtain a fi...

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Abstract

The invention discloses an antibacterial nanocomposite edible film and a preparation method thereof. The antibacterial nanocomposite edible film comprises the following components in parts by mass: 10-15 parts of sodium alginate, 0.2-0.6 parts of nano-montmorillonite, and 15-21 parts of clove essential oil. In the antibacterial nano-composite edible film provided by the present invention, sodium alginate is the film-forming matrix, and nano-montmorillonite is evenly distributed in the matrix to play a reinforcing role, further increasing the mechanical properties and barrier properties of the edible film; nano-montmorillonite The unique immobilization and adsorption effect of stone can play a synergistic sterilization effect with clove essential oil, further improving the antibacterial activity and scope of application. The invention also provides the preparation method of the above-mentioned edible film, which has the characteristics of simple processing technology, easy operation, low cost and easy popularization and application.

Description

technical field [0001] The invention belongs to the technical field of edible packaging materials, and in particular relates to an antibacterial nanocomposite edible film and a preparation method thereof. Background technique [0002] Food antibacterial packaging technology is one of the most widely used active packaging technologies. It can effectively inhibit the microorganisms on the surface of food, prolong the shelf life of food and ensure the quality of food. The antibacterial packaging system generally consists of three parts: packaging materials, antibacterial agents and food. Antibacterial agents can achieve antibacterial effects in the following forms: coated on packaging materials; synthesized in packaging materials; fixed on the surface of packaging materials; improved into packaging materials. Adding antimicrobial agents to packaging materials has more advantages than directly soaking and spraying antimicrobial agents, which can greatly reduce the amount of ant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L5/02C08K3/34C08K5/00C08J5/18B65D65/46
Inventor 张慧芸吴静娟郭新宇任广跃陈俊亮
Owner HENAN UNIV OF SCI & TECH