Asian Science
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Abstract: The aims of this study was to analyze the chemical composition of fruits and
stem volatile oils of Olea europaea L. cv. Chemchali and to test the
efficacy of volatile oils against four pathogenic bacteria and four phytopathogen
strains and their antioxidant activity. The GC-MS analysis revealed 38 compounds
representing 88.5 and 73.6% of the total oils containing 3-ethenylpyridine (12.5%),
(E)-2-decenal (11.4%) and 2-ethylbenzaldehyde (7.7%) in fruit and nonanal (9.9%),
(E)-2-decenal (9.6%) and benzyl alcohol (9.00%) in stem as major components,
respectively. The antibacterial and antifungal activities of stem volatile oils
were relatively good. Therefore, the stem of Olea europaea L. demonstrated
higher activities against tested fungi and bacteria than the fruit. The DPPH
and ABTS-radical-scavenging activities of the oils showed that the lowest EC50
value was detected in volatile oil from fruit.