Composition analysis and antioxidant activities of the essential oil and the hydrosol extracted from Rosmarinus officinalis L. And Lavandula angustifolia Mill. Produced in Jeju

Abstract

Constituents of the essential oil (EO)s and hydrosol of rosemary (Rosmarinus officinalis L.) and lavender (Lavandula angustifolia Mill.) were analyzed by gas chromatography-mass spectrometry (GC-MS). The identified major constituents were α- pinene (40.96%), camphor (34.44%), verbenone (45.31%), and camphor (67.04%) in rosemary EO, lavender EO, rosemary hydrosol, and lavender hydrosol, respectively. The antioxidant activity of EO and hydrosol extracted from rosemary and lavender were evaluated. Both EO showed di(phenyl)-(2,4,6-trinitrophenyl) iminoazanium (DPPH) and 2,2′-azino-bis(3-ethylbenzthiazoline- 6-sulphonic acid) free radical scavenging activities as well as Fe 2+ ion chelating activity but no alkyl radical scavenging activity. Rosemary EO showed higher DPPH radical scavenging activity than lavender, whereas lavender EO showed higher Fe 2+ ion chelating activity. Both rosemary and lavender hydrosols showed alkyl radical scavenging activity, but only lavender hydrosol showed an activity on Fe 2+ chelating assay. Both rosemary and lavender hydrosols also protected the dermal fibroblast and the HaCaT keratinocytes against H 2 O 2 -induced cytotoxicity. © The Korean Society for Applied Biological Chemistry 2013.