Zein/polyphenol/nano-zinc oxide composite fiber membrane and preparation method thereof

A technology of zein and nano-zinc oxide, which is applied in fiber processing, fiber chemical characteristics, single-component protein rayon, etc., can solve the problem of not fundamentally solving food preservation problems, increasing the burden on the earth, resource waste environment, etc. problem, achieve the effect of reducing water loss, inhibiting growth, and simple operation

Pending Publication Date: 2022-01-07
BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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  • Description
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  • Application Information

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Problems solved by technology

[0003] However, traditional fruit and vegetable packaging materials are mostly polymer materials such as polyethylene (PE) and polypropylene (PP). The excessive use of these petroleum-based materials has greatly increased the burden on the earth, resulting in waste of resources and environmental pollution. And did not fundamentally solve the problem of food preservation

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  • Zein/polyphenol/nano-zinc oxide composite fiber membrane and preparation method thereof
  • Zein/polyphenol/nano-zinc oxide composite fiber membrane and preparation method thereof
  • Zein/polyphenol/nano-zinc oxide composite fiber membrane and preparation method thereof

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preparation example Construction

[0044] The embodiment of the present invention discloses a zein / polyphenol / nano-zinc oxide composite fiber membrane and a preparation method thereof, which specifically includes the following steps:

[0045] (1) Dissolving zein in an aqueous acetic acid solution, then adding gelatin and mixing evenly to obtain a zein solution;

[0046] The mass ratio of acetic acid to water in the acetic acid aqueous solution is 8:2; the mass volume ratio of zein to ethanol aqueous solution is 1g / 10mL, and the mass ratio of gelatin to zein is (1~5):(5~9 );

[0047] (2) adding polyphenols to the above-mentioned zein solution, and then heating and stirring to obtain a corn / polyphenol solution;

[0048] The polyphenols are ferulic acid, quercetin, gallic acid or proanthocyanidins; the mass fraction of polyphenols is 5-15%; the heating temperature is 42°C, the stirring time is 30min, and the stirring speed is 400r / min

[0049] (3) Add nano-zinc oxide to the above-mentioned corn / polyphenol soluti...

Embodiment 1

[0054] Embodiment 1 of the present invention discloses a zein / polyphenol / nano-zinc oxide composite fiber membrane and a preparation method thereof, specifically comprising the following steps:

[0055] (1) Dissolving zein in an aqueous acetic acid solution, then adding gelatin and mixing evenly to obtain a zein solution;

[0056] The mass ratio of acetic acid to water in the acetic acid aqueous solution is 8:2; the mass volume ratio of zein to ethanol aqueous solution is 1g / 10mL, and the mass ratio of gelatin to zein is 4:9;

[0057] (2) Add proanthocyanidins to the above-mentioned zein solution so that the mass fraction of proanthocyanidins is 10%, and then heat to 42° C. and stir for 30 minutes to obtain a corn / polyphenol solution; the stirring speed is 400 r / min;

[0058] (3) Add nano-zinc oxide to the above-mentioned corn / polyphenol solution, and undergo ultrasonic treatment to obtain an electrospinning solution; the mass fraction of nano-zinc oxide is 5%, the ultrasonic t...

Embodiment 2

[0063] Embodiment 2 of the present invention discloses a zein / polyphenol / nano-zinc oxide composite fiber membrane and a preparation method thereof, specifically comprising the following steps:

[0064] (1) Dissolving zein in an aqueous acetic acid solution, then adding gelatin and mixing evenly to obtain a zein solution;

[0065] The mass ratio of acetic acid to water in the acetic acid aqueous solution is 8:2; the mass volume ratio of zein to ethanol aqueous solution is 1g / 10mL, and the mass ratio of gelatin to zein is 4:6;

[0066] (2) Add gallic acid to the above-mentioned zein solution, so that the mass percentage of gallic acid is 15%, and then heat to 42° C. and stir for 30 minutes to obtain a corn / polyphenol solution; the stirring speed is 400 r / min;

[0067] (3) Add nano-zinc oxide to the above-mentioned corn / polyphenol solution, and undergo ultrasonic treatment to obtain an electrospinning solution; the mass fraction of nano-zinc oxide is 5%, the ultrasonic temperatur...

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Abstract

The invention discloses a zein / polyphenol / nano-zinc oxide composite fiber membrane and a preparation method thereof. The zein / polyphenol / nano-zinc oxide composite fiber membrane has excellent antibacterial property and oxidation resistance, keeps good biodegradability, and has practical application value. The preparation method specifically comprises the following steps of (1) dissolving zein in an acetic acid aqueous solution, then adding gelatin, and uniformly mixing to obtain a zein solution; (2) adding polyphenol into the zein solution, and then heating and stirring to obtain a zein / polyphenol solution; (3) adding nano zinc oxide into the zein / polyphenol solution, and performing ultrasonic treatment to obtain an electrostatic spinning solution; and (4) carrying out electrostatic spinning treatment on the electrostatic spinning solution to obtain filter paper with fibers, and drying to obtain the zein / polyphenol / nano-zinc oxide composite fiber membrane.

Description

technical field [0001] The invention relates to the technical field of food packaging materials, in particular to a zein / polyphenol / nanometer zinc oxide composite fiber film and a preparation method thereof. Background technique [0002] At present, with the increase in mass production of fruits and vegetables and the increase in transportation costs, the phenomenon of fruit and vegetable rot is quite serious, which puts forward new requirements for food preservation. For food preservation, reasonable selection and design of food packaging materials can alleviate these problems to a certain extent. Therefore, in the early 1980s, polymer packaging materials were widely used due to their advantages such as small specific gravity, high strength, good air tightness, long service life, and easy processing and printing. [0003] However, traditional fruit and vegetable packaging materials are mostly polymer materials such as polyethylene (PE) and polypropylene (PP). The excessive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/728D04H1/42D01D5/00D01F4/00D01F1/10
CPCD04H1/728D04H1/42D01D5/0069D01D5/0076D01F4/00D01F1/10D01F1/103
Inventor 田华峰刘洪涛李健赵亚欣
Owner BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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