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Preparation method of edible anti-bacterial packaging film

A packaging film and solution technology, applied in packaging, wrapping paper, transportation and packaging, etc., can solve the problem of no tea polyphenols

Inactive Publication Date: 2011-04-20
HENAN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] There is no report on the application of tea polyphenols in packaging materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Example 1: Add 4% (w / v) carrageenan to 0.9% (w / v) chitosan solution, stir at 50°C for 30 minutes, add 0.01% (w / w) sodium chloride while stirring ), add 2% (w / v) gelatin to the solution after mixing evenly, add 0.8% (w / v) green tea polyphenol to the solution while stirring, and cast to form a film.

Embodiment 2

[0014] Example 2: Add 6% (w / v) carrageenan to 1.2% (w / v) chitosan solution, stir at 40°C for 40 minutes, add 0.02% (w / w) sodium chloride while stirring ), after mixing evenly, add 3% (w / v) gelatin to the solution, add 1.0% (w / v) green tea polyphenol to the solution while stirring, and cast to form a film.

Embodiment 3

[0015] Example 3: Add 5% (w / v) carrageenan to 1.5% (w / v) chitosan solution, stir at 50°C for 50 minutes, add 0.03% (w / w) sodium chloride while stirring ), adding 4% (w / v) gelatin to the solution after mixing evenly, adding 1.2% (w / v) green tea polyphenols to the solution while stirring, and casting to form a film.

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PUM

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Abstract

The invention relates to a preparation method of an edible anti-bacterial packaging film. The preparation method is characterized in that carrageenan is added in a 0.9-1.5% (w / v) chitosan solution; the mixture is,stirred for 30-50 minutes at 40-50 DEG C; sodium chloride is added while stirring is carried out; after the mixture is mixed uniformly, gelatin and green tea polyphenol are added into the solution, and curtain coating is carried out, thus obtaining the edible anti-bacterial packaging film. The edible anti-bacterial packaging film prepared by the preparation method has a certain inhibitory action on bacteria and is environmental-friendly.

Description

technical field [0001] The invention relates to a preparation method of a packaging film, in particular to a preparation method of an edible antibacterial packaging film. Background technique [0002] One of the ways for humans to infect bacteria is through the food of the population, and food packaging materials are generally in direct contact with food. The development of food packaging materials with antibacterial and fresh-keeping functions is very important. At present, there are many types of antimicrobial materials, which generally include antimicrobial plastics, antimicrobial fibers and fabrics, antimicrobial ceramics, and antimicrobial metals. The production of antibacterial materials is generally by adding antibacterial agents to the substrate or coating the surface of the substrate in an appropriate way. Therefore, it can be said that the pros and cons of antibacterial materials ultimately depend on the development of antibacterial agents. Although there are man...

Claims

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Application Information

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IPC IPC(8): C08J5/18C08L5/00C08L5/08C08L89/00C08K13/02C08K3/16C08K5/1545B65D65/46
Inventor 王岸娜吴立根王晓曦竹建德
Owner HENAN UNIVERSITY OF TECHNOLOGY
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