Compound having efficacy of promoting collagen secretion and application thereof
A technology of compounds and active ingredients, applied to a compound with the effect of promoting collagen secretion and its application field
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Embodiment 1
[0018] 1. Preparation of Compound 1:
[0019] Shade-dried purple ginger tuber 4kg was crushed, extracted 3 times by 95% ethanol-water cold immersion, each time for 24 hours, combined the extracts, extracted with petroleum ether when the extract was concentrated until only water remained, and extracted 3 times to obtain petroleum ether extract 55g. Petroleum ether extract (50g) was subjected to normal-phase silica gel column chromatography, and the petroleum ether / ethyl acetate system was eluted according to the following gradient: petroleum ether elution 3L, petroleum ether / ethyl acetate 20:1 elution 9L, petroleum ether / ethyl acetate 15:1 eluted 3L, petroleum ether / ethyl acetate 9:1 eluted 7L, petroleum ether / ethyl acetate 4:1 eluted 3L, petroleum ether / ethyl acetate 3:1 eluted 3L, Petroleum ether / ethyl acetate 2:1 eluted 6L, and after analysis by thin layer chromatography (TLC), they were combined into 20 segments, denoted as P1-P20; among them, P18 (1.619g) was passed thro...
Embodiment 2
[0024] 1. Activity evaluation and cytotoxicity evaluation of compound 1 in promoting HDFa cells to secrete collagen
[0025] Human dermal fibroblasts-adult (HDFa) were purchased from Cascade Biologics.
[0026] HDFa cytotoxicity test: on a 96-well cell culture plate, mix HDFa cells with the drug solution to be tested, set up 3 replicate wells, and set a blank control without drug at the same time, 37 ° C, 5% CO 2 After culturing for 24 hours, the cytotoxicity was detected by the MTS colorimetric method, and the OD value was measured by a microplate reader at a wavelength of 490 nm. Cell viability was calculated.
[0027] Cell survival rate (%) = experimental well OD 490nm / blank well OD 490nm ×100%
[0028] HDFa collagen secretion promotion experiment: HDFa cells were mixed with 10 g / mL drug solution to be tested on a 12-well cell culture plate, and a blank control without drug and a TGF-β positive control were set. 37°C, 5% CO 2 After culturing for 3 days, collect the c...
Embodiment 3
[0037] Whitening cream formula (wt%) containing compound 1:
[0038]
[0039] The cosmetics of the above-mentioned formula of the present invention are prepared according to the conventional method for making cosmetics.
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