Full-bio-based angelica keiskei antibacterial hydrogel and preparation method thereof
A kind of all-biological and hydrogel technology, applied in the direction of resisting vector-borne diseases, bandages, medical science, etc., can solve the problems of environmental safety and biosafety risks, poor antibacterial and moisturizing properties, etc., achieve obvious antioxidant activity, The effect of good repeatability and easy scale production
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[0033] The invention provides a preparation method of all-bio-based Ashitaba antibacterial hydrogel, comprising the following steps:
[0034] S1: solution co-dissolution: after dissolving the natural antibacterial freeze-dried powder of ashitaba in a solvent for spin centrifugation, take the supernatant, drop the supernatant into the sodium alginate aqueous solution and stir and mix;
[0035] S2: sol-gel treatment: adding calcium salt-glucose caprolactone mixed solution to the solution treated in step S1, performing sol-gel reaction, stirring and then standing for 3-5 hours to obtain initial gel;
[0036] S3: external diffusion treatment: the primary gel prepared in step S2 is immersed in a calcium salt solution to prepare a full bio-based ashitaba antibacterial hydrogel.
[0037] Preferably, in the step S1, the natural antibacterial lyophilized powder of ashitaba is one or more of ashitaba leaf lyophilized powder, ashitaba stem lyophilized powder, and ashitaba root lyophilize...
Embodiment 1
[0047] A preparation method of all-bio-based Ashitaba antibacterial hydrogel, comprising the following steps:
[0048] S1: Solution co-dissolution: First dissolve the lyophilized Ashitaba powder in ethanol, spin and centrifuge at 5000 rpm for 5 min, take the supernatant, and drop the supernatant into a 1wt% sodium alginate aqueous solution, continue stirring until mixed uniform;
[0049] S2: Sol-gel treatment: adding a calcium carbonate-glucose-caprolactone volume ratio of 3:1 to the solution after the treatment in step S1, the material concentration of the mixed solution is 50 mmol / L, and the The volume ratio of the sodium alginate aqueous solution and the calcium carbonate-glucose caprolactone mixed solution is 3:1, and the sol-gel reaction is carried out, and the initial gel is obtained by standing for 3 hours after stirring;
[0050] S3: external diffusion treatment: the gel prepared in step S2 is immersed in a 4wt% calcium chloride aqueous solution for 2 hours to prepare a...
Embodiment 2
[0052] A preparation method of all-bio-based Ashitaba antibacterial hydrogel, comprising the following steps:
[0053] S1: Solution co-dissolution: First dissolve the lyophilized powder of Ashitaba in ethanol, spin and centrifuge at 5000 rpm for 5 min, take the supernatant, and drop the supernatant into a 5wt% sodium alginate aqueous solution, continue stirring until mixed uniform;
[0054] S2: Sol-gel treatment: adding a calcium carbonate-glucose-caprolactone volume ratio of a mixed solution of 10:1 to the solution processed in step S1, the substance concentration of the mixed solution is 100 mmol / L, and the The volume ratio of the sodium alginate aqueous solution and the calcium carbonate-glucose caprolactone mixed solution is 10:1, and the sol-gel reaction is carried out, and the initial gel is obtained by standing for 3 hours after stirring;
[0055] S3: External diffusion treatment: Immerse the gel prepared in step S2 into a 4wt% calcium chloride aqueous solution for 10 ...
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