울금 및 발효울금 추출물의 피부관련 생리활성 탐색

A Study on Skin Related Physiological Activity of Curcuma Longa and Fermented Curcuma Longa Extracts

This paper investigated the skin-related physiological activity of curcuma longa and fermented C. longa extract using hot water and ethanol to identify the possibility of development of cosmetic materials. The analysis results are described below. The contents of polyphenol and flavonoid were the highest in C. longa extract using ethanol, 44.57mg/g and 349.28 mg/g, respectively. DPPH scavenging ability was also the highest in curcuma longa extract using ethanol, 66.99% at the concentration of 200g/mL. Curcuma longa extract using ethanol showed relatively high activity than other extracts in tyrosinase inhibitory activity. Furthermore, the C. longa extract using ethanol had the highest antimicrobial activity although its antimicrobial activity was lower than that of gentamycin, the positive control group in the antibacterial activity test. In accordance with the analysis results, the C. longa extract showed higher activity than fermented C. longa extract. In particular, the C. longa extract using ethanol showed the highest activity in tyrosinase inhibitory activity and other tests. Accordingly, this paper confirmed that C. longa, a functional food, has the possibility to be used as a material for whitening cosmetics.