Anti-biofilm Activity of Xanthorrhizol Isolated from Curcuma xanthorrhiza Roxb. against Bacterial Biofilms Formed by Saliva and Artificial Multi-species Oral Strains

  • Yanti, Yanti (Department of Biotechnology, Yonsei University) ;
  • Rukayadi, Yaya (Department of Biotechnology, Yonsei University) ;
  • Lee, Kwan-Hyoung (Department of Biomaterials Science and Technology, Yonsei University) ;
  • Han, Sung-Hwa (Department of Biomaterials Science and Technology, Yonsei University) ;
  • Hwang, Jae-Kwan (Department of Biotechnology, Yonsei University)
  • Published : 2009.04.30

Abstract

Xanthorrhizol, a sesquiterpene isolated from Curcuma xanthorrhiza Roxb., was used to investigate its effect on reducing the saliva and multi-species oral biofilms consisting of Streptococcus mutans, Streptococcus sanguis, and Actinomyces viscosus by anti-biofilm and confocal laser scanning microscopy (CLSM) assays. Xanthorrhizol exhibited significant antibiofilm activity in the dose- and time-dependent manners. Exposure to 2 and $5{\mu}g/mL$ xanthorrhizol for 30 min remained <50% of saliva and multi-species biofilms formed for 24 hr. In addition, exposure to $10{\mu}g/mL$ xanthorrhizol for 30 min reduced 65 and 77% of 24 hr saliva and multi-species oral biofilms, respectively. CLSM results visually demonstrated that xanthorrhizol reduced bacterial viability in the saliva and multi-species oral biofilms. These results suggest that C. xanthorrhiza Roxb. containing xanthorrhizol with strong anti-biofilm activity can be employed as a plant source for oral care functional foods.

Keywords

References

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