Pinus armandii Franch rosin extract, cosmetic adopting same as active ingredient and application of Pinus armandii Franch rosin extract
A technology of pine resin and extract, which is applied in Huashan pine resin extract and cosmetics and application fields using it as an active ingredient, can solve the problems of no activity, etc., and achieve the goal of improving resource utilization value, improving utilization function and added value Effect
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Embodiment 1
[0025] Preparation of Huashan pine resin extract:
[0026]Take 10 g of Pinus armandii Franch rosin, grind the sample into powder, soak in 25 times the amount of 85% ethanol (301-302 mL) for 24 hours, then collect the filtrate with a Buchner funnel, and repeat 3 times. The filtrate was distilled under reduced pressure with a rotary evaporator, the filtrate was concentrated, and the concentrated filtrate was dried at low temperature to obtain a crude extract. The crude extract was adsorbed and decolorized by macroporous resin (D101), and eluted with 95% ethanol. The eluate was concentrated, evaporated to dryness, and freeze-dried at low temperature to obtain 2.3 g of Huashan pine resin extract, with an extraction rate of 23%.
[0027] Alternatively, weigh 10 g of Huashan pine resin sample, grind the sample into powder, cold-soak with 20 times the amount of 95% ethanol for 18 hours, then collect the filtrate with a Buchner funnel, and repeat 5 times. The filtrate was distilled u...
Embodiment 2
[0029] Cytotoxicity test of Huashan pine resin extract: by MTS colorimetry, the CC of the sample was determined 50 (50%cytotoxicconcentration), that is, the drug concentration when producing toxicity to 50% of the cells, thereby determining the safe sample concentration for the following activity experiments.
[0030] Experimental method: on a 96-well cell culture plate, mix B16 cells with different concentrations of the drug solution to be tested, set 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. Calculated to get CC 50 value.
[0031] Cell survival rate (%) = experimental well OD 490nm / blank well OD 490nm ×100%
[0032] Experimental results: The cell survival rate of Huashan pine resin extract is 100.760%. It can be clearly seen that Huashan pine resin extr...
Embodiment 3
[0034] HDFa collagen secretion promotion experiment: HDFa cells were mixed with different concentrations of drug solutions to be tested on a 12-well cell culture plate, and a blank control without drugs and a TGF-β positive control were set. 37°C, 5% CO 2 After culturing for 3 days, collect the cell culture supernatant and store it at -80°C; add MTS, and use the MTS colorimetric method to detect the OD value at 490nm; detect the secretion of collagen according to the method provided in the collagen ELISA kit, and measure it with a microplate reader OD value, the detection wavelength is 450nm. The increase rate of collagen secretion was calculated.
[0035] Cell survival rate (%) = experimental well OD 490nm / blank well OD 490nm ×100%
[0036] Collagen secretion increase rate (%)=(experimental well OD 450nm / cell viability / blank well OD 450nm -1)×100%
[0037] Experimental results: In the co-culture with human fibroblasts, Huashan pine resin extract (EC 50 =65.562μg / mL)...
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