• Journal of the Korea Convergence Society
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• v.10 no.7
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• pp.267-279
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• 2019

The study studied dermal protection and crease improvement from the sunlight of the lipid extract and narinjin. Sunlight was investigated in HR-1 (motherless mice) to identify changes in epithelial thickness and changes in collagen fibers, which account for around 90% of dermis, as the inhibitory efficacy of collagenase dissolving collagen also plays an important role in wrinkles. The experiment was validated using narinjin and jisil extract. First: The components of jisil and narinjin were analyzed. Second, antioxidant capabilities were confirmed with DPPH. Third: The inhibitory activity of collagen was measured. Studies have shown that the skin's upper skin thickness suppression of dermal extracts and narinzine has increased and that collagen thicknesses and wrinkles have decreased significantly compared to controls.

• Journal of the Korean Applied Science and Technology
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• v.36 no.3
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• pp.821-829
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• 2019

This study was conducted to evaluate the applicability of the extracts from nipa palm, molokhia, and finger root in functional cosmetics as a natural active ingredient. The extracts were obtained through the processes of heating under reflux with ethanol, filtration, concentration, and freeze-drying. UV absorption and blocking effects of the extracts were examined by using the UV-vis spectrophotometer equipped with an integrating sphere. Antioxidant activity and its stability between the extracts were compared using the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging assay. Also, total polyphenol content in the extracts was determined quantitatively using the Folin-Ciocalteu reagent, with gallic acid as the standard. Antibacterial activity of the extracts was investigated by the disc diffusion test against Staphylococcus aureus (gram-positive) and Escherichia coli (gram-negative). Finally, collagenase inhibitor assay was performed to examine the anti-wrinkle effect of the extracts. From the results of this study, the extract of nipa palm showed the potential for use in cosmetics as an antioxidant and anti-wrinkle agent, and the extract of finger root as a sunscreen and antibacterial agent.

• Industry Promotion Research
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• v.9 no.3
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• pp.77-85
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• 2024

In this study, the hydrothermal extract of Chrysanthemum indicum Flowers are analyzed for the identification of its functional material value. Various aromatic compounds were detected as a result of GC-MS analysis, and antioxidant analysis confirmed the high antioxidant activity of the extract. High antibacterial activity was confirmed in the TIME KILL TEST using the 70% ethanol extract, which showed the highest activity, and the inhibition of intracellular melanogenesis was confirmed to be 115.77 ± 6.67%, 112.42 ± 1.64%, and 67.12 ± 3.89% compared to the α-MSH treatment group at concentrations of 1%, 1.2%, and 1.5%, respectively, when the extract was treated with 1%, 1.2%, and 1.5%. Collagenage activity inhibition assay showed collagenase inhibition of 56.57 ± 2.28%, 58.64 ± 2.99 and 29.53 ± 1.03% when treated at concentrations of 1.5%, 3% and 5%. The cytotoxicity test of the extract showed no cytotoxicity at concentrations of 1.5%, 3% and 5%. Therefore, this study predicts that the hydrothermal extract of Chrysanthemum indicum Flowers will be useful as a functional cosmetic material.