Cosmetic composition for skin whitening comprising arctiin, arctigenin or the mixture thereof as active ingredient
A cosmetic composition, arctigenin technology, applied in the field of skin whitening cosmetic composition, can solve the problems of reducing the whitening effect, stimulating the skin, reducing the stability of cosmetics, etc.
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preparation example 1
[0036] Preparation Example 1: Preparation of Active Substances from Forsythia
[0037] 5 L of 95% ethanol was added to 1 kg of forsythia (fruit of Forsythia korean) powder washed with purified water, dried and powdered, and reflux stirring was performed. Then, by filtration and concentration, 33.2 g of a concentrate were obtained. Next, n-hexane was added, and a degreasing process (fractionation and separation) was performed to obtain 19.3 g of a concentrate. The concentrate was separated using cation exchange resin Diaion HP-20 (column 25 x 100 cm) by adding water and methanol, continuously increasing methanol concentration (10% methanol, 20% methanol, etc.). Of the fractions, the methanol fraction was concentrated to 60-80% to obtain 3.5 g of a concentrate, which was dissolved in methanol. Separated by LH-20 and MPLC, 0.63g of arctiin was obtained, and observed by NMR and mass spectrometry. Other active substances of forsythia, such as arctigenin, materesinol, pedicel, fo...
preparation example 2
[0038] Preparation Example 2: Preparation of a mixture of arctiin and arctigenin
[0039] Arctiin was extracted and prepared from Forsythia in the same manner as described in Preparation Example 1, mixed with arctigenin purchased from Sigma at a weight ratio of 1:3 to 3:1, and prepared at a high concentration (4,000ppm) Soluble in 1,3-butanediol.
experiment example 1
[0040] Experimental Example 1: Inhibition of Melanin Synthesis by Active Substances of Forsythia
[0041] α-MSH used in the melanin synthesis inhibition experiment was dissolved in 10% DMSO (dimethyl sulfoxide), and used as a 1 mM solution. B-16 melanoma (ATCC CRL 6323) cell line (from mice) was inoculated into DMEM medium containing 4.5g / L glucose, 10% serum and 1% antibiotics, and placed in a 75cm 2 In cell culture flasks at 37°C, 5% CO 2 Train next time. Subculture melanoma cell lines in 75cm 2 Cell culture flasks were cultured for 24 hours and treated with 0.05% trypsin containing 0.02% EDTA. Then, detach the cells and inoculate in 75cm 2 Cell culture flasks were further cultured for 6 hours. Here, the number of cells is 1×10 7 cells / flask. Then, melanocyte-stimulating hormone was diluted in DMEM medium to a final concentration of 100 μg / ml. Next, each of arctiin, arctigenin, materesinol, oleanolic acid, betulinic acid, rutin, and ursolic acid was diluted in DMEM m...
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