Egg white water gel membrane/composite membrane based on unidirectional nanopore dehydration and preparation method thereof
A nanoporous, gel film technology, applied in or conductive egg white hydrogel film/composite film/guide field, to achieve the effects of good growth and proliferation, strong mechanical properties, and strong tensile properties
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Embodiment 1
[0027] This example provides the preparation of the homogeneous egg white liquid required to prepare each example according to the technical solution of the present invention.
[0028] Use fresh eggs (Lan Fei, Shanghai Dahe Egg Products Co., Ltd., sole proprietorship in Japan, Shanghai, China) to collect the egg white liquid through the egg white separator. Because the egg white concentrated liquid and the diluted liquid are difficult to fully mix evenly, the egg white can be placed in a high-speed pulverizer. Perform intermittent high-speed shearing (500-5000 rpm) for 5-10 min. After removing the egg white foam, the rest of the egg white liquid is centrifuged at 5000-15,000 rpm for 10-20 min to remove the trace sediment and a small amount of white floating matter. The supernatant is the egg white homogenate.
Embodiment 2
[0030] This embodiment provides the preparation method of egg white bioglass described in the technical solution of the present invention.
[0031] see attached figure 1 , the schematic structural diagram of the unidirectional nanopore dehydration mold provided in this embodiment; the processing mold for unidirectional nanopore dehydration mainly consists of a film-forming cup 1 with an inner cavity diameter of 30 mm or 80 mm, a nanoporous filter membrane 2, a fixed ring 3. The sample hole 4 and the sample hole rubber stopper 5 are composed. The circular nanoporous filter membrane 2 moistened in water is screwed and fixed by the inner screw of the fixing ring 3, and placed on the horizontal mold shelf. First, use a pipette to add a little distilled water through the sample hole 4 to test the fixed filter membrane 2. Whether there is water leakage. If water leaks, repeat the above operation until no water leaks.
[0032] Use a pipette to add a certain volume of homogeneous e...
Embodiment 3
[0034] This embodiment provides the preparation method of the egg water gel membrane / composite membrane described in the technical solution of the present invention.
[0035] The egg white bioglass prepared by unidirectional nanopore dehydration according to Example 1 and Example 2 must be subjected to post-processing heat treatment, and immediately packed into polypropylene (PP) sealed bags or wrapped with tin platinum paper after being removed from the mold , placed in high temperature steam for 1 ~ 4 h; or placed in 100 ~ 140 ℃ high temperature oven for 1 ~ 4 h; that is, a water-insoluble, good mechanical strength, soft egg water gel film (referred to as EWHM).
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