Gliadin-based core-shell fiber film, food storage and preservation material and preparation method
A technology of gliadin and fresh-keeping materials, which is applied in fiber treatment, fiber chemical characteristics, textiles and papermaking, etc. It can solve the problems of no relevant reports, achieve good release effect, improve fresh-keeping efficiency and long-lasting release effect
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Embodiment 1
[0080] A preparation method of gliadin-based core-shell fiber membrane, comprising the following steps:
[0081] Step 1: Preparation
[0082] Mixing ethanol and water to obtain an aqueous ethanol solution with a volume concentration of 80%;
[0083] At room temperature, polyethylene oxide was added into an aqueous ethanol solution, and stirred until the polyethylene oxide was completely dissolved to obtain a polyethylene oxide solution with a concentration of 13% by mass;
[0084] Adding zein into ethanol aqueous solution at room temperature, stirring for 2 hours, and maintaining room temperature to obtain a zein solution with a volume concentration of 30%;
[0085] At room temperature, mix a polyethylene oxide solution with a mass percentage concentration of 13% and a volume concentration of a zein solution with a volume concentration of 30%, and mix them evenly at a mass ratio of 1:1 to obtain a zein mixed ring Oxyethane mixed solution;
[0086] Step 2: Coaxial Electrospi...
Embodiment 2
[0091] A preparation method of gliadin-based core-shell fiber membrane, the same as Example 1, the difference is:
[0092] The outer syringe connected to the outer needle is injected: a mixed solution of 30% zein and 13% polyethylene oxide with a mass ratio of 1:1 is injected into the inner syringe connected to the inner needle: 13% polyethylene oxide Ethane ethanol solution; obtain zein mixed polyethylene oxide coated polyethylene oxide fiber film.
[0093] The scanning electron microscope image of the prepared zein-mixed polyethylene oxide-coated zein fiber film is shown in image 3 .
Embodiment 3
[0095] A preparation method of gliadin-based core-shell fiber membrane, the same as Example 1, the difference is:
[0096] The outer syringe connected to the outer needle was injected: 30% zein solution; the inner syringe connected to the inner needle was injected: 13% polyethylene oxide solution; a fiber film coated with zein was obtained .
[0097] The scanning electron microscope image of the prepared zein-mixed polyethylene oxide-coated zein fiber film is shown in Figure 4 .
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