Application of arbutin sugar ester derivative in preparation of cosmetics or drugs
A technology of arbutin sugar and derivatives, applied in the field of medicine, can solve the problems of undiscovered melanin activity of arbutin sugar ester derivatives, and achieve strong inhibitory effect, low acute toxicity, and strong inhibitory effect
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Embodiment 1
[0038] The effect of 6'-O-caffeoyl-arbutin (6'-O-caffeoyl-arbutin) (abbreviation: KIBVA) on the inhibition of zebrafish melanin:
[0039] 1. The preparation of 6'-O-caffeoylarbutin (6'-O-caffeoyl-arbutin) (abbreviation: KIBVA): adopt the method of the Chinese patent "Patent No.: ZL200710065956.X" authorized by the applicant, The 6'-O-caffeoyl arbutin obtained by the method has high yield and high purity, simple and easy preparation process, short production cycle, and easy batch preparation and industrial production process. The prepared KIBVA structural formula is as follows:
[0040]
[0041] 2. Zebrafish selection:
[0042] The 6hpf AB line zebrafish were observed under a dissecting microscope, and the normal and consistent zebrafish were picked and transferred into 6-well microwell plates, with 30 fish per well. (Note: hpf=hour post fertilization in the present invention, Chinese refers to the number of hours after fertilization of zebrafish, such as 6hpf refers to 6 ...
Embodiment 2
[0060] Zebrafish Melanin Inhibition Recovery Assay:
[0061] 1. Zebrafish selection:
[0062] The 6hpf AB line zebrafish were observed under a dissecting microscope, and the normal and consistent zebrafish were picked and transferred into 6-well microwell plates, with 30 fish per well.
[0063] 2. Compound treatment:
[0064] Three experimental groups were set up in the experiment, namely A, B, and C groups, wherein A group was a blank control (control) treatment group containing 3 mL of aquaculture water; B group was a solvent (0.1% DMSO, i.e. 0.1% dimethyl methylene Sulfone) control treatment group, that is, 3 mL of aquaculture water containing 3 μL DMSO; group C is a 200 μM KIBVA treatment group, that is, a 200 μM KIBVA solution prepared with 3 mL of aquaculture water.
[0065] For each treatment group, 30 6hpf zebrafish with the same development were selected, and they were cultured in a 28°C incubator to 52hpf and then photographed; KIBVA was removed for 24 hours after ...
Embodiment 3
[0070] Acute toxicity test of KIBVA:
[0071] 1. Zebrafish selection:
[0072] The 6hpf AB line zebrafish were observed under a dissecting microscope, and the normal and consistent zebrafish were picked and transferred into 6-well microwell plates, with 30 fish per well.
[0073] 2. Compound treatment:
[0074] This experiment adopts hydrostatic test, and according to the pre-experimental results, 6 different concentrations of KIBVA and arbutin (both are respectively: 0μM, 10μM, 100μM, 1mM, 2mM, 3mM) were set respectively, and 30 tails were put into each concentration. The 6hpf zebrafish with the same development were placed in a 28°C incubator and cultured in the dark, and the mortality of the zebrafish was used as an evaluation index.
[0075] 3. Test results:
[0076] Through the test result recording and statistical analysis, it was found that:
[0077] (1) When zebrafish were treated with drugs to 52hpf, it was observed that the maximum non-lethal concentration of zeb...
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