Objective: To compare the compositions between the essential oils extract from roseleaves collected the same day and those stored for 4 days.Methods: Wet distillation for extracting,GC for content determination of geraniol,GC-MS for qualitative analysis of the roseleaf essential oil.Results: The percentage of geraniol in the essential oil extract from roseleaves collected the same day was 14.91%.Whereas the percentage from roseleaves stored for 4 days under 4 ℃ and room temperature was reduced to 6.44% and ...