Degradable antibacterial antioxidant film and preparation method thereof

An anti-oxidation and film technology, applied in the field of degradable antibacterial and anti-oxidation films and their preparation, can solve problems such as pollution and white pollution of the atmosphere, and achieve the effects of overcoming complex production processes, good antibacterial and antioxidative effects, and high tensile strength

Active Publication Date: 2022-04-12
JIANGXI UNIVERSITY OF TRADITIONAL CHINESE MEDICINE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of this, the present invention aims at the shortcomings of the prior art, and its main purpose is to provide a degradable antibacterial and anti-oxidation film and a preparation method thereof, which uses biorenewable degradable zein solution and chitosan to make the film. Basic materials to solve environmental problems such as "white pollution" caused by discarding traditional films and air pollution caused by incineration; use volatile oil to enhance antibacterial and anti-oxidation functions of films, delaying food corruption and rancidity

Method used

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  • Degradable antibacterial antioxidant film and preparation method thereof
  • Degradable antibacterial antioxidant film and preparation method thereof
  • Degradable antibacterial antioxidant film and preparation method thereof

Examples

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preparation example Construction

[0042] The preparation method of degradable antibacterial and anti-oxidation film, it comprises the steps:

[0043] S1: Preparation of volatile oil: put the medicinal material containing volatile oil into a volatile oil extractor, add 6-10 times the amount of water by weight, heat and distill for extraction for 2h-8h; adding desiccant to the layer for dehydration and drying to obtain volatile oil; wherein, the desiccant is anhydrous sodium sulfate or anhydrous calcium sulfate;

[0044]S2: Preparation of chitosan solution and zein solution: add chitosan to acetic acid solution, stir to form a transparent chitosan solution, centrifuge to filter insoluble matter, take the upper chitosan solution for later use; dissolve zein in In the ethanol solution, stir to form a transparent zein solution, centrifugally filter the insoluble matter, and take the upper zein solution for later use; wherein, the mass concentration of the acetic acid solution is 1%-5%, and the mass concentration of...

Embodiment 1

[0050] A kind of preparation method of degradable antibacterial antioxidation film of the present embodiment, comprises the following steps:

[0051] S1: Preparation of volatile oil: take the medicinal material of Rhizoma chinensis, put it into a volatile oil extractor, add 8 times the amount of water, distill and extract for 5 hours, stop heating, obtain a water layer and a volatile oil layer, and add anhydrous sodium sulfate or anhydrous calcium sulfate to the volatile oil layer Dehydrated and dried to obtain the volatile oil of Rhizoma chinensis;

[0052] S2: Preparation of chitosan solution and zein solution: add chitosan to 1% acetic acid solution, stir to form a transparent chitosan solution with a mass fraction of 1%, centrifugally filter the insoluble matter, and take the upper layer The chitosan solution is for subsequent use; the zein is dissolved in an ethanol solution with a volume concentration of 90%, stirred to form a zein solution with a transparent mass concen...

Embodiment 2

[0056] A kind of preparation method of degradable antibacterial antioxidation film of the present embodiment, comprises the following steps:

[0057] S1: Preparation of volatile oil: take the medicinal material of Rhizoma chinensis, put it into a volatile oil extractor, add 8 times the amount of water, distill and extract for 5 hours, stop heating, obtain a water layer and a volatile oil layer, and add anhydrous sodium sulfate or anhydrous calcium sulfate to the volatile oil layer Dehydrated and dried to obtain the volatile oil of Rhizoma chinensis;

[0058] S2: Preparation of chitosan solution and zein solution: add chitosan to 1% acetic acid solution, stir to form a transparent chitosan solution with a mass fraction of 1%, centrifugally filter the insoluble matter, and take the upper layer The chitosan solution is for subsequent use; the zein is dissolved in an ethanol solution with a volume concentration of 90%, stirred to form a zein solution with a transparent mass concen...

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Abstract

The invention discloses a degradable antibacterial and antioxidant film and a preparation method thereof, and relates to the technical field of preservative films, the degradable antibacterial and antioxidant film is prepared from the following raw materials by weight: chitosan, corn protein, volatile oil and glycerol according to a weight ratio of (0.8-1.2): (0.8-1.2): (0.8-1.2): (0.4-0.6); the preparation method of the degradable antibacterial and antioxidant film comprises the following steps: S1, preparing volatile oil; S2, preparing a chitosan solution and a corn protein solution; S3, embedding the volatile oil with corn protein; and S4, preparation of the film: by adopting a biologically regenerated and degradable corn protein solution and chitosan as base materials of the film, the environmental problems of white pollution caused by discarding of a traditional film, atmospheric pollution caused by incineration and the like are solved, the antibacterial and antioxidant functions of the film are enhanced by adopting volatile oil, and food spoilage and rancidity are delayed.

Description

technical field [0001] The invention relates to the technology in the field of fresh-keeping film, in particular to a degradable antibacterial and anti-oxidation film and a preparation method thereof. Background technique [0002] Food safety has always been a major global health issue. It is directly related to human life and health, and it is also a hot topic of concern at home and abroad. With the improvement of people's living standards, people pay more and more attention to the safety of food storage. The research on food preservation technology has always been a hot research topic in recent years. Among them, food preservation film preservation technology has also received more and more attention. Traditional preservation films are often made of petroleum products such as polyethylene and polyvinyl alcohol. Due to their refractory characteristics, it is easy to cause "white pollution" and other environmental conditions. Problems, in addition, the burning of such membr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L5/08C08L89/00C08L91/00C08K5/053C08J5/18
CPCY02W90/10
Inventor 明良山李哲刘红宁江晓霞董子舒
Owner JIANGXI UNIVERSITY OF TRADITIONAL CHINESE MEDICINE
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