A coaxial nanofiber membrane embedded with fish oil and its preparation and application
A nanofiber membrane, fish oil technology, applied in fiber processing, cellulose/protein conjugated rayon, conjugated synthetic polymer rayon, etc., to improve oxidative stability, expand applications, and prolong shelf life.
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Embodiment 1
[0041] A kind of preparation method of the coaxial nanofiber film of present embodiment embedding fish oil, specifically as follows:
[0042] (1) Dissolve 31g of PVP in 100mL of ethanol and stir until completely dissolved to obtain a shell spinning solution;
[0043] (2) Dissolve 25g of zein in 100mL of ethanol:water in a mixed solvent with a volume ratio of 8.5:1.5, and stir in a magnetic stirrer for 0.5h to obtain a 25% zein solution;
[0044] (3) Add a certain amount of fish oil to the solution in step (2) according to the quality of zein: fish oil = 10:3, and stir magnetically at 25-40°C for 1 hour;
[0045] (4) adding mass fraction in the solution of step (3) is 3% glycerin, stir;
[0046] (5) Inhale the shell spinning solution obtained in step (1) into a 5mL syringe, install a needle with a diameter of 0.6mm, and control the flow rate at 0.4mL / h; suck the solution prepared in step (4) into a 5mL syringe as the core spinning solution , install a needle with a diameter o...
Embodiment 2
[0049] A kind of preparation method of the coaxial nanofiber film of present embodiment embedding fish oil, specifically as follows:
[0050] (1) Dissolve 31g of PVP in 100mL of ethanol and stir until completely dissolved to obtain a shell spinning solution;
[0051] (2) Dissolve 25g of zein in 100mL of ethanol:water in a mixed solvent with a volume ratio of 8.5:1.5, and stir in a magnetic stirrer for 0.5h to obtain a 25% zein solution;
[0052](3) Add a certain amount of fish oil to the solution in step (2) according to the quality of zein: fish oil = 10:3, and stir magnetically at 25-40°C for 1 hour;
[0053] (4) adding mass fraction in the solution of step (3) is 3% glycerin, stir;
[0054] (5) Inhale the shell spinning solution obtained in step (1) into a 5mL syringe, install a needle with a diameter of 0.6mm, and control the flow rate at 0.3mL / h; suck the solution prepared in step (4) into a 5mL syringe as the core spinning solution , install a needle with a diameter of...
Embodiment 3
[0057] A kind of preparation method of the coaxial nanofiber film of present embodiment embedding fish oil, specifically as follows:
[0058] (1) Dissolve 31g of PVP in 100mL of ethanol and stir until completely dissolved to obtain a shell spinning solution;
[0059] (2) Dissolve 25g of zein in 100mL of ethanol:water in a mixed solvent with a volume ratio of 8.5:1.5, and stir in a magnetic stirrer for 0.5h to obtain a 25% zein solution;
[0060] (3) Add a certain amount of fish oil to the solution in step (2) according to the quality of zein: fish oil = 10:3, and stir magnetically at 25-40°C for 1 hour;
[0061] (4) adding mass fraction in the solution of step (3) is 3% glycerin, stir;
[0062] (5) Inhale the shell spinning solution obtained in step (1) into a 5mL syringe, install a needle with a diameter of 0.6mm, and control the flow rate at 0.2mL / h; suck the solution prepared in step (4) into a 5mL syringe as the core spinning solution , install a needle with a diameter o...
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