Antibacterial packaging film and preparation method thereof

A packaging film and antibacterial agent technology, applied in the field of antibacterial packaging film and its preparation, can solve the problems of low cost, antibacterial effect cannot meet market demand, etc., achieve excellent antibacterial performance, inhibit microbial growth, and easy control of process parameters.

Active Publication Date: 2015-01-14
厦门金汇峰新型包装材料股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation process of this method is simple, does not pollute the environment, and the cost is low, but the antibacterial effect cannot meet the market demand

Method used

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  • Antibacterial packaging film and preparation method thereof
  • Antibacterial packaging film and preparation method thereof
  • Antibacterial packaging film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1) Take an appropriate amount of β-cyclodextrin, dissolve and stir it with a certain amount of distilled water to form a β-cyclodextrin solution with a mass concentration of 10%, take an appropriate amount of camellia oil essential oil, and prepare a 10% camellia oil sesame oil with an ethanol solution After the solution was added dropwise to an equal volume of β-cyclodextrin aqueous solution. Stir at 40°C for 10 minutes and take it out. After the solution is cooled to room temperature, put it in the refrigerator and filter it with suction. The filter residue is washed with absolute ethanol and distilled water respectively, and dried at 80°C to constant weight to obtain micro Capsule product, microcapsule structure such as figure 1 shown. Sampling to test the entrapment rate of the microcapsules;

[0033] 2) Take a certain amount of chitosan and add concentration of 1% acetic acid to stir, completely dissolve, and obtain a chitosan solution with a mass concentration o...

Embodiment 2

[0037] 1) Take an appropriate amount of β-cyclodextrin, dissolve and stir it with a certain amount of distilled water to form a β-cyclodextrin solution with a mass concentration of 10%, take an appropriate amount of camellia oil essential oil, and prepare a 10% camellia oil sesame oil with an ethanol solution After the solution was added dropwise to an equal volume of β-cyclodextrin aqueous solution. Stir at 40°C for 10 minutes and take it out. After the solution is cooled to room temperature, put it in the refrigerator and filter it with suction. The filter residue is washed with absolute ethanol and distilled water respectively, and dried at 80°C to constant weight to obtain micro Capsule product. Sampling to test the entrapment rate of the microcapsules;

[0038] 2) Take a certain amount of chitosan and add concentration of 1% acetic acid to stir and dissolve completely to obtain a chitosan solution with a mass concentration of 40%; add an equal volume of tea oil with a ma...

Embodiment 3

[0042] 1) Take an appropriate amount of β-cyclodextrin, dissolve and stir it with a certain amount of distilled water to form a β-cyclodextrin solution with a mass concentration of 10%, take an appropriate amount of camellia oil essential oil, and prepare a 10% camellia oil sesame oil with an ethanol solution After the solution was added dropwise to an equal volume of β-cyclodextrin aqueous solution. Stir at 40°C for 10 minutes and take it out. After the solution is cooled to room temperature, put it in the refrigerator and filter it with suction. The filter residue is washed with absolute ethanol and distilled water respectively, and dried at 80°C to constant weight to obtain micro Capsule product. Sampling to test the entrapment rate of the microcapsules;

[0043] 2) Take a certain amount of chitosan and add concentration of 1% acetic acid to stir and dissolve completely to obtain a chitosan solution with a mass concentration of 40%; add an equal volume of tea oil with a ma...

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Abstract

The invention discloses an antibacterial packaging film and a preparation method thereof. The antibacterial packaging film comprises chitosan as a main raw material and further comprises plant essential oil which is used as an antibacterial agent. By using a plant essential oil microcapsule formed by beta-cyclodextrin and plant essential oil as the antibacterial agent, the antibacterial packaging film not only can be used for improving the stability of essential oil, but also can be used for controlled release of the essential oil. In addition, the raw material chitosan is an environment-friendly macromolecular compound, so that the antibacterial packaging film has a good film-forming property and is excellent in antibacterial property.

Description

technical field [0001] The invention belongs to the technical field of functional packaging films, and in particular relates to an antibacterial packaging film and a preparation method thereof. Background technique [0002] Chitosan-supported thin film pair O 2 , CO 2 、C 2 h 4 It has a certain selective osmosis, is safe, non-toxic, cheap, has good biocompatibility and degradability, and has been widely used in the field of food preservation. It can slow down the consumption of nutrients, delay the ripening of fruits, and reduce the rate of fruit decay. However, when chitosan forms a film alone, its wet mechanical strength is poor, and the strength and toughness of the film are not enough, and it is easy to break and break after a period of time. Therefore, many scholars have modified chitosan to improve the mechanical properties, moisture retention and antibacterial properties of chitosan films, and enhance the fresh-keeping performance of chitosan composite films. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L5/08C08K9/10C08J5/18
Inventor 戴李宗罗宇峰
Owner 厦门金汇峰新型包装材料股份有限公司
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