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A kind of preparation method of long-acting antibacterial edible film with slow-release effect

An effective and long-lasting technology, applied in flexible coverings, packaging, wrapping paper, etc., can solve the problems of essential oil loss and other problems, and achieve the effects of avoiding pollution, improving utilization rate, and good mechanical strength

Inactive Publication Date: 2016-10-05
HUAQIAO UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of preparation method of the long-acting antibacterial edible film with slow-release effect in order to overcome the technical problem of a large amount of loss of essential oil in the existing essential oil antibacterial edible film, which can replace or partially replace plastic packaging film, Used in the field of food packaging

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Add 0.2g of β-cyclodextrin to 100ml of distilled water to prepare an aqueous solution of β-cyclodextrin;

[0026] (2) Add 0.04ml of a mixture of mustard essential oil and ethanol to the β-cyclodextrin aqueous solution prepared in step (1), wherein the volume ratio of mustard essential oil to ethanol is 1:1, and stir electromagnetically at 25°C for 2 hours. Prepare β-cyclodextrin-mustard essential oil clathrate suspension;

[0027] (3) Add 0.02ml of Tween-80 to the suspension prepared in step (2), and stir for 5 minutes to obtain a stable β-cyclodextrin-mustard essential oil inclusion compound emulsion;

[0028] (4) Add 2g of cellulose sodium sulfate powder and 0.3g of glycerin to the emulsion prepared in step (3), stir for 2 hours, and then vacuum degassing to obtain sodium cellulose sulfate-β-cyclodextrin-mustard Essential oil film-forming liquid;

[0029] (5) Pour the film-forming solution prepared in step (4) onto a smooth polypropylene plastic plate to form a ...

Embodiment 2

[0032] The difference between this example and Example 1 is that the dosage of γ-cyclodextrin is 0.6g, the dosage of mustard essential oil-ethanol mixture is 0.36ml, and the dosage of Tween-80 is 0.04ml. All the other conditions are with embodiment 1. A long-acting antibacterial edible film with a thickness of 35 μm, anti-Escherichia coli and Staphylococcus aureus with slow-release effect can be prepared.

[0033] The prepared edible film, the agar medium plate coated with Escherichia coli and the agar medium plate of Staphylococcus aureus were placed together in an airtight container, and Staphylococcus aureus colonies and Escherichia coli colonies were not observed in 60 days .

Embodiment 3

[0035] (1) Add 0.6g of β-cyclodextrin to 100ml of distilled water to prepare an aqueous solution of β-cyclodextrin;

[0036] (2) Add 0.8ml of a mixture of oregano essential oil and ethanol to the β-cyclodextrin aqueous solution prepared in step (1), wherein the volume ratio of oregano essential oil and ethanol is 1:1, and stir electromagnetically at 25°C for 4 hours , making β-cyclodextrin-oregano essential oil clathrate suspension;

[0037] (3) Add 0.08ml of Tween-80 to the suspension prepared in step (2), and stir for 10 minutes to prepare a stable β-cyclodextrin-oregano essential oil inclusion compound emulsion;

[0038] (4) Add 1g of cellulose sodium sulfate powder and 0.15g of glycerin to the emulsion prepared in step (3), stir for 2 hours, and then vacuum degassing to prepare sodium cellulose sulfate-β-cyclodextrin-oregano Essential oil film-forming liquid;

[0039] (5) Pour the film-forming solution prepared in step (4) onto a smooth polypropylene plastic plate to for...

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PUM

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Abstract

The invention discloses a preparation method of a long-acting antibacterial edible film with a sustained release effect. According to the method, cellulose sodium sulfate is used as a base material, natural essential oil is used as an antibacterial agent and cyclodextrin is used as a sustained release agent and a deodorant; and the steps of dissolution, homogenization, degassing, film preparation, drying and the like are carried out to prepare a long-acting antibacterial edible packaging film with a sustained release essential oil characteristic. According to the method, the utilization rate of the essential oil can be improved, the release time of the essential oil can be prolonged, the prepared edible film has favorable mechanical property, barrier property and long-acting antibacterial property, and the packaging requirements of other food such as cookies, cakes, fruits and the like.

Description

technical field [0001] The invention relates to the field of food processing, and more specifically, relates to a preparation method of an edible film. Background technique [0002] With the safety of food itself and the environmental problems brought about by its packaging, people are paying more and more attention to it. Edible film has become a Research hotspots in the field of food packaging. Edible film is a kind of natural edible substance (such as protein, polysaccharide, lipid, etc.) TLC. The edible film itself is rich in nutrients and is easy to breed microorganisms, which will cause a decline in the mechanical properties and barrier properties of the product during storage. Therefore, strengthening the antibacterial function of the edible film can prevent the food and the film itself from being contaminated by microorganisms, thereby prolonging the shelf life of the food. Edible antibacterial film is a functional film that adds antibacterial agents to the edibl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L5/16C08L1/16B65D65/38
Inventor 陈国刘斌陈宏文林毅张光亚
Owner HUAQIAO UNIVERSITY
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