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Novel edible antibacterial food packaging film and preparation method thereof

A food packaging film, edible technology, applied in the field of new edible antibacterial food packaging film and its preparation, can solve the problems of poor mechanical strength, poor antibacterial performance, etc., and achieves enhanced antibacterial preservation effect, poor water resistance, and wide source of raw materials. Effect

Inactive Publication Date: 2017-05-31
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems of poor mechanical strength or poor antibacterial performance of existing environment-friendly food packaging films, the present invention provides a novel edible antibacterial food packaging film and a preparation method thereof

Method used

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  • Novel edible antibacterial food packaging film and preparation method thereof
  • Novel edible antibacterial food packaging film and preparation method thereof
  • Novel edible antibacterial food packaging film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A new type of edible antibacterial food packaging film, the composition of which is: 2g chitosan, 2g gelatin, 0.30%wt glycerin, 0.04g Tween 80, 0.2%wt cinnamon essential oil. Its preparation method is:

[0026] (1) Weigh 2g of chitosan and add it to a 250ml conical flask, then add 200ml of deionized water, stir for 3 minutes, after the chitosan is evenly dispersed, add 2ml of acetic acid solution dropwise while stirring, and stir fully to obtain chitosan solution.

[0027] (2) Weigh 2 g of gelatin, expand it in cold water for 15 min, and then dissolve it under magnetic stirring for 2 h at 35°C to prepare a 1% w / v gelatin solution.

[0028] (3) Then add 0.30%wt glycerin to the chitosan and gelatin solutions respectively, and stir and mix for 30min.

[0029] (4) After mixing the chitosan / glycerin and gelatin / glycerin solutions at a mass ratio of 4:6, add 0.04 g of Tween 80 emulsifier, and continue to stir and mix for 30 minutes until uniform, so as to assist the dispers...

Embodiment 2

[0034] A new type of edible antibacterial food packaging film, the composition of which is: 1g chitosan, 1g gelatin, 0.25%wt glycerin, 0.08g Tween 80, 0.4%wt cinnamon essential oil. Its preparation method is:

[0035] (1) Weigh 1g of chitosan and add it to a 250ml Erlenmeyer flask, then add 100ml of deionized water and stir for 3 minutes to disperse the chitosan evenly, then add 1ml of acetic acid solution dropwise while stirring, and stir thoroughly to obtain chitosan solution.

[0036] (2) Weigh 1g of gelatin, expand it in cold water for 15min, and then dissolve it under magnetic stirring for 2h at 35°C to prepare a 1% gelatin solution.

[0037] (3) Then add 0.25%wt glycerin to the chitosan and gelatin solutions respectively, and stir and mix for 30min.

[0038] (4) After mixing the chitosan / glycerin and gelatin / glycerin solutions at a mass ratio of 5:5, add 0.08g of Tween 80 emulsifier, and continue to stir and mix for 30 minutes until uniform, so as to assist the dispers...

Embodiment 3

[0043] A new type of edible antibacterial food packaging film, the composition of which is: 2g chitosan, 2g gelatin, 0.40%wt glycerin, 0.08g Tween 80, 0.4%wt cinnamon essential oil. Its preparation method is:

[0044] (1) Weigh 2g of chitosan and add it to a 250ml conical flask, then add 200ml of deionized water, stir for 3 minutes, after the chitosan is evenly dispersed, add 2ml of acetic acid solution dropwise while stirring, and stir fully to obtain chitosan solution.

[0045] (2) Weigh 2g of gelatin, expand it in cold water for 15min, and then dissolve it under magnetic stirring for 2h at 35°C to prepare a 1% gelatin solution.

[0046] (3) Then add 0.40%wt glycerin to the chitosan and gelatin solutions respectively, and stir and mix for 30min.

[0047] (4) After mixing the chitosan / glycerin and gelatin / glycerin solutions at a mass ratio of 6:4, add 0.08g of Tween 80 emulsifier, and continue to stir and mix for 30 minutes until uniform, so as to assist the dispersion and ...

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Abstract

The invention discloses a novel edible antibacterial food packaging film and a preparation method thereof. The novel edible antibacterial food packaging film is prepared from chitosan, gelatin and cinnamon essential oil. The preparation process is simple, and the preparation method only comprises the following steps: respectively preparing a chitosan solution and a gelatin solution, respectively adding glycerin plasticizing agents for mixing, adding a natural antibacterial agent cinnamon essential oil, emulsifying, fully dispersing the emulsion, performing film casting, thereby obtaining the product. The obtained food packaging film has excellent tensile strength (TS is equal to 42.17+ / -1.84MPa) and ductility (EAB is equal to 62.34+ / -2.66%), has obvious effects of inhibiting common spoilage microorganisms such as Escherichia coli and staphylococcus aureus in foods higher than those of PE preservative films in the market, is suitable for packaging various foods and meets the market requirements.

Description

technical field [0001] The invention belongs to the field of food packaging, and in particular relates to a novel edible antibacterial food packaging film and a preparation method thereof. Background technique [0002] At present, the food packaging materials on the market are mainly plastic chemical materials (polyethylene, polyvinyl chloride). Although they have the advantages of durability, low cost and easy molding, the environmental problems caused by their non-degradability have caused people's focus on. People's requirements for food packaging materials are not limited to packaging, but new requirements have been put forward for whether they can maintain the freshness of food and reduce food spoilage. At present, food packaging materials made of sustainable biomaterials have the advantages of non-toxic, non-polluting, degradable and renewable, and have become a research hotspot. [0003] Chitosan is a product obtained by deacetylation of chitin in crustacean shells ...

Claims

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Application Information

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IPC IPC(8): C08L5/08C08L89/00C08L91/00C08K5/053C08J5/18B65D65/46
CPCC08L5/08B65D65/463C08J5/18C08J2305/08C08J2389/00C08L89/00C08L2201/08C08L2201/14C08L2203/16C08L2205/035C08L91/00C08K5/053
Inventor 付才力
Owner FUZHOU UNIV
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