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Preparation method of lysozyme-based phase transition antibacterial membrane

A lysozyme, phase transition technology, applied in the directions of botanical equipment and methods, chemical instruments and methods, chemicals for biological control, etc., to achieve good antibacterial properties and inhibit the growth of Staphylococcus aureus.

Pending Publication Date: 2022-07-08
安徽荣达食品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few reports on the research on the modified food packaging materials of lysozyme phase transition products

Method used

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  • Preparation method of lysozyme-based phase transition antibacterial membrane
  • Preparation method of lysozyme-based phase transition antibacterial membrane
  • Preparation method of lysozyme-based phase transition antibacterial membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] like figure 1 As shown, the preparation method of the lysozyme-based phase transition antibacterial film comprises the following steps:

[0030] Hot pressing: the film pulled from the unwinder 1 and the non-woven fabric pulled from the cloth winding machine 14 are sent to the hot pressing roller 15 together, and the film and the non-woven fabric are hot pressed by the hot pressing roller 15 to form a film sheet, the film is PE film;

[0031] Cleaning: the diaphragm is sent into the cleaning tank 2, and the cleaning liquid is vibrated by the first ultrasonic vibration plate 3 arranged in the cleaning tank 2 to clean the diaphragm immersed in the cleaning liquid; the cleaning liquid is alcohol;

[0032] Immersion-modification: The cleaned and dried membranes are sent to the dipping tank 5, and the membranes are soaked by the liquid in the dipping tank 5 (25°C, standing for 20 min, 60 min, 120 min, 180 min) The preparation method of the medicinal solution is: take a cert...

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Abstract

The preparation method of the lysozyme-based phase transition antibacterial membrane comprises the following steps: cleaning: feeding a membrane pulled out from an unreeling machine into a cleaning tank, and vibrating a cleaning solution by a first ultrasonic vibration plate arranged in the cleaning tank so as to clean the membrane immersed in the cleaning solution; soaking in a medicine: feeding the cleaned and dried membrane into a medicine soaking tank, and soaking the membrane in the medicine liquid in the medicine soaking tank; primary drying: sending the membrane soaked with the liquid medicine into a primary air drying box for primary air drying; rinsing: feeding the membrane subjected to primary air drying into a rinsing tank, and rinsing the membrane by using a second ultrasonic vibration plate vibration buffer solution arranged in the rinsing tank; and secondary drying is conducted, specifically, the rinsed membrane is fed into a secondary air drying box to be subjected to secondary air drying, and then the membrane is wound through a winding machine. According to the invention, the polyethylene membrane has a certain antibacterial effect.

Description

technical field [0001] The invention relates to a preparation method of a lysozyme-based phase transition bacteriostatic film. Background technique [0002] In recent years, the food industry and consumers have paid more and more attention to the preservation and preservation of food during food processing, packaging and storage. Food packaging is designed to extend the shelf life of food by protecting it from environmental influences and avoiding biochemical changes. How to maximize the shelf life of food and maintain the nutritional flavor while minimizing the impact on the environment is critical. Among the many polymers used in food packaging, polyethylene is widely used due to its good performance and low price. In order to obtain a polyethylene film with antibacterial properties, the polyethylene film can be compounded with different active substances to prepare a food antibacterial fresh-keeping film. For example, chitosan, gelatin, etc. are coated on the surface o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N63/50A01P1/00B32B37/10B32B37/06
CPCA01N63/50B32B37/10B32B37/06
Inventor 李述刚董世建王战刘鑫焦涵
Owner 安徽荣达食品有限公司
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