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KMID : 0604520180440040427
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Journal of the Society of Cosmetic Scientists of Korea
2018 Volume.44 No. 4 p.427 ~ p.436
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Anti-inflammatory and Anti-bacterial Constituents from the Extracts of Daucus carota var. sativa Aerial Parts
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Kim Jung-Eun
Jo Yeong-Jeong
Lee Nam-Ho
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Abstract
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In this study, we investigated anti-inflammatory and anti-bacterial constituents from Daucus carota var. sativa (carrot) areal parts. For the extract and solvent fractions, the anti-inflammatory activities were examined by measuring the nitric oxide (NO) production using LPS-stimulated RAW 264.7 cells. Among them, the ethyl acetate (EtOAc) fraction decreased the NO level in a dose-dependent manner. To elucidate further anti-inflammatory mechanisms, EtOAc fraction was evaluated by estimating their effects on the production of prostaglandin E2 and pro-inflammatory cytokines as well as on the expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2). As a result, the EtOAc fraction was determined to inhibit the production of PGE2, IL-1β, IL-6 and reduce the iNOS, COX-2 protein expression. Upon the anti-bacterial tests using Staphylococcus epidermidis and Propionibacterium acnes, n-hexane (Hex) and EtOAc fractions showed the most potent activities. Three phytochemicals were isolated form the EtOAc fraction; diosmetin (1), diosmin (2), cynaroside (3). The chemical structures of the isolated compounds were elucidated based on the spectroscopic data including 1H and 13C NMR spectra, as well as comparison of the data to the literatures. Anti-inflammatory and anti-bacterial effects were studied for the isolates. All of the compounds (1 ? 3) decreased the NO production, effectively. Also, compound 3 showed anti-bacterial activity on P. acnes. Based on these results, D. carota var. sativa extract could be potentially applicable as anti-inflammatory and anti-bacterial ingredients in cosmetic formulations.
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KEYWORD
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D. carota var. sativa, anti-inflammation, anti-bacterial activity, isolation
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