Chemical constituents and antimicrobial activities of the essential oils from Sedum pallidum var. bithynicum and S. spurium grown in Turkey

Abstract

Chemical compositions of the essential oil of Sedum pallidum Bieb. var. bithynicum (Boiss.) and S. spurium Bieb. (Crassulaceae) from Turkey were investigated by GC-MS, and antimicrobial activity of the oil samples were assessed against Gram-positive/negative bacteria and yeast-like fungi. Thirty-eight and thirty-five components were identified in the essential oils and the main components of these species were found to be caryophyllene oxide from S. pallidum var. bithynicum and hexahydrofarnesyl acetone from S. spurium in the ratios of 12.8% and 15.7%, respectively. The isolated essential oils of the plants showed low antimicrobial activity against Gram-negative/positive bacteria and yeast-like fungi, having the MIC values of 500-2000 μg/mL. Antibacterial activity was not observed against Bacillus cereus.

Keywords::

• Sedum pallidum var. Bithynicum
• Sedum spurium
• Crassulaceae
• essential oil
• antimicrobial activity
• GC-MS

Acknowledgements

This study was supported by grants from Karadeniz Technical University and State Planning Agency (DPT) of Turkey.

Declaration of interest: The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.