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Eruca sativa is a rocket plant and a member of the Brassicaceae, which is considered to be an important chemo-preventive plant family. Although Eruca sativa has positive biological effects, the effect of Eruca sativa extract (ES) on improvement of skin barrier function has not been reported. In this study, we investigated the applicability of functional materials by examining a variety of physiological activities of Eruca sativa extract. ES showed anti-microbial activities against Bacillus subtilis, Escherichia coli, and Candida albicans. In particular, antimicrobial activities of ES against B. subtilis was the highest. Additionally, immunohistochemical analysis of protein marker related to keratinocyte differentiation was determined. The treatment by ES (50 mg/L) showed a significant increase of involucrin expression compared with treatment by 0.1% DMSO as a control in skin equivalents, the ES-treated group showed similar level in the expression of involucrin compared to the group treated with the same concentration of WY14643 in EpiDerm, a three-dimensional model of skin equivalents. These results indicate that ES promotes the expression of protein related to barrier properties of the skin. Therefore, ES may be an effective ingredient for skin barrier improvement.

Antimicrobial activities and skin barrier improvement effect of Eruca sativa extract