Antiseptic for food packaging material and preparation method thereof

A technology of food packaging and antibacterial agents, which is applied in the field of antibacterial agents for food packaging materials and its preparation, can solve problems such as toxic and side effects, and achieve the effects of high embedding rate, simple preparation process, and simple process

Inactive Publication Date: 2015-07-15
SHANGHAI INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because traditional food antibacterial coatings are made by

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0037] Example 1

[0038] An antibacterial agent for food packaging materials. Microcapsules formed by using tetradecane as the core material and the composite material formed by chitosan and gum arabic as the wall material. Calculated by mass ratio, the core material: wall material is 1: 1. In the composite material formed by chitosan and gum arabic, the amount of chitosan and gum arabic is calculated by mass ratio. Chitosan: gum arabic is 1:5.

[0039] The preparation method of the above-mentioned antibacterial agent for food packaging materials specifically includes the following steps:

[0040] (1) Dissolve 0.15 g of chitosan with 50 ml of 1% acetic acid aqueous solution with a volume percentage concentration of 1% to obtain a chitosan acetic acid aqueous solution with a mass percentage concentration of 0.3%;

[0041] (2) Dissolve 0.75g of gum arabic with 50mL of deionized water at a temperature of 50°C under stirring to obtain an aqueous solution of gum arabic with a concentra...

Example Embodiment

[0052] Example 2

[0053] An antibacterial agent for food packaging materials. Microcapsules formed by using tetradecane as the core material and the composite material formed by chitosan and gum arabic as the wall material. Calculated by mass ratio, the core material: wall material is 1: 1. In the composite material formed by chitosan and gum arabic, the amount of chitosan and gum arabic is calculated by mass ratio. Chitosan: gum arabic is 1:7.

[0054] The preparation method of the above-mentioned antibacterial agent for food packaging materials specifically includes the following steps:

[0055] (1) Dissolve 0.25 g of chitosan with 50 ml of 1% acetic acid aqueous solution with a volume percentage concentration of 1% by stirring, to obtain a chitosan acetic acid aqueous solution with a mass percentage concentration of 0.5%;

[0056] (2) Dissolve 1.75 g of gum arabic with 50 mL of deionized water at a temperature of 50° C. to obtain an aqueous solution of gum arabic with a concent...

Example Embodiment

[0067] Example 3

[0068] An antibacterial agent for food packaging materials. Microcapsules formed by using tetradecane as the core material and the composite material formed by chitosan and gum arabic as the wall material. Calculated by mass ratio, the core material: wall material is 1: 1. In the composite material formed by chitosan and gum arabic, the amount of chitosan and gum arabic is calculated by mass ratio. Chitosan: gum arabic is 1:6.

[0069] The preparation method of the above-mentioned antibacterial agent for food packaging materials specifically includes the following steps:

[0070] (1) Dissolve 0.2g of chitosan with 50ml of 1% acetic acid aqueous solution by stirring to obtain a 0.4% acetic acid aqueous solution of chitosan by mass percentage;

[0071] (2) Dissolve 1.2 g of gum arabic with 50 mL of deionized water at a temperature of 50°C under stirring to obtain an aqueous solution of gum arabic with a concentration of 2.4% by mass;

[0072] (3) 1.4g of tetradecan...

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Abstract

The invention discloses an antiseptic for food packaging materials and a preparation method thereof. The antiseptic for food packaging materials is a microcapsule using tetradecane as a core material and a composite material formed by chitosan and Arabia gum as a wall material, wherein the weight ratio of core material to the wall material is 1:1, and chitosan and Arabic gum in the wall material are in the weight ratio of 1:5-7. The preparation method is as below: homogenizing and emulsifying tetradecane, emulsifier and deionized water, and pouring the mixture into chitosan acetic acid solution to obtain an uniform mixed liquor; dropwise adding the uniform mixed liquor into the Arabic gum aqueous solution, adjusting the pH value to 3-4, and reacting for of 1-3 h to obtain a reaction liquid; controlling the temperature of the reaction liquid below 10 DEG C, adding glutaraldehyde for solidification, adjusting the pH value to 8-9, continuing stirring for 30-60 min to obtain a microcapsule solution; conducting vacuum filtration, washing and drying on the obtained microcapsule solution, so as to obtain the natural, antibacterial, non-toxic, harmless, pollution-free to the environment and biodegradable antiseptic for food packaging materials. The preparation technology is simple and applicable to large scale production.

Description

technical field [0001] The invention relates to an antibacterial agent for food packaging materials and a preparation method thereof. The antibacterial agent for food packaging materials uses a polymer material with natural antibacterial properties as a wall material, and is coated with a phase change material with a certain temperature control range. In addition to antibacterial properties, an antibacterial agent for food packaging materials with temperature control properties is prepared. Background technique [0002] As we all know, with the continuous improvement of people's requirements for food quality in modern society, active packaging has emerged at the historic moment. At present, some large additive manufacturers and packaging companies in the world are developing new active packaging materials, some food processing and disinfection technologies, such as high pressure Ultrasonic and magnetic treatments, among others, can be applied in packaging. Antimicrobial foo...

Claims

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Application Information

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IPC IPC(8): A01N43/16A01N25/28A01P1/00A01P3/00C09K5/06
Inventor 宋晓秋徐单单叶琳付盼娟于翠陈轶豪
Owner SHANGHAI INSTITUTE OF TECHNOLOGY
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