The antimicrobial activity of the essential oils was assessed using the paper-disc diffusion method according to the National Committee for Clinically Laboratory standard (NCCLS, National Committee for Clinical Laboratory Standards, 1997). Briefly, a suspension of the tested microorganisms (∼108CFU/mL) was spread on the MH solid media plates. Sterile filter paper disc (6 mm in diameter) were soaked with 15 L of the volatile fractions and placed on the inoculated plates. After being kept at 4◦C for 2 h,bacteria and yeasts were incubated at 37◦C (24 h) and 30◦C (48 h),respectively. Ampicillin (10 g/disc) and Nystatin (100 g/disc)