Yoshihiro INOUE and Ryoko CHIBA
The essential oil of Cryptomeria japonica (Sugi) is of interest for the reasons of medical effectiveness. We reported the antibacterial activity of the essential oil. But it remains unclear that the relationship between the antibacterial activity and the constituents. The results of antibacterial activity measurement suggested that -eudesmol was important constituent to inhibit the growth of S. aureus and terpinene-4-ol and limonene was necessary combination to suppress the growth of E. coli. It is also found that the antibacterial activity essential oil of Cryptomeria japonica appears to be due to synergistic effects of the constituents.
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