This study was performed to investigate the anti-inflammatory activities of fermented Scutellaria baicalensis extracts using Lactobacillus rhamnosus. The extracts were WE (water extract at 100 ℃ for 24 h), EE (70% ethanol extract at 60 ℃ for 24 h), FWE (fermented and water extract at 60 ℃ for 24 h), FEE (fermented and 70% ethanol extract at 60 ℃ for 24 h). The cytotoxicity of the extracts was in the range of 11.2 ∼ 15.6 % at 1.0 mg/mL concentratioin. The FEE showed the lowest activity at 1.0 mg/mL concentratioin. Compared to the WE, hyaluronidase inhibitory activity contents in the FEE increased to 9.2% at 1.0 mg/mL concentratioin. Nitric oxide production of WE, EE, FWE and FEE at 1.0 mg/mL concentration was mesured as 7.6, 7.9, 6.9, 6.4 μM, respectively. PGE2 secretion of the human fibroblast of the FEE were lower than 810 pg/mL. Our results suggested that the extracts from fermentation process after 70% ethanol extraction had relatively high anti-inflammatory activities and that the Scutellaria baicalensis could be more extracted in FEE than others.
This study was to improve cosmetical activity of thiamine di-lauryl sulfate (TDS) by encapsulation of nanoparticle with lecithin. Results showed that most of the nanoparticles containing the TDS were well formed in round shape with below 150 ∼ 200 nm diameter as well as they were fairly stable in various pH ranges by measuring zeta potentials. The nanoparticles of TDS resulted in 85% cell viability of human normal fibroblast cells (CCD-986sk) when added at the highest concentration (1.0 mg/mL). The nanoparticles of Acer mono sap showed highest free radical scavengering effect as 88.1% in adding sample (1.0 mg/mL), compared to TDS solution of non-encapsulation (81.6%). The nanoparticles of TDS reduced the expression of MMP-1 on UV-irradiated CCD-986sk cells down to as 41.4%. The TDS solution and nanoparticles showed significant anti-microbial activities agaionst the salmonella typhimurium and listeria monocytogenes at 5 and 6 days as compared with control. Anti-microbial activities of TDS nanoparticles were similar to positive control. These results indicated that TDS nanoparticles may be a source for functional cosmetic agents capable of improving cosmetical activity such as antioxidant, whitening, and anti-wrinkling effects and can be further developed as natural preservative in cosmetics.
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