TITLE:
Chemical Composition and Antibacterial Activity of the Essential Oils from Different Parts of Eugenia caryophylata, Thunb Grown in Amboina Island
AUTHORS:
Hanoch Julianus Sohilait, Healthy Kainama, Maria Nindatu
KEYWORDS:
Eugenia caryophylata, Essential Oils, Chemical Composition, Antibacterial
JOURNAL NAME:
International Journal of Organic Chemistry,
Vol.8 No.2,
June
20,
2018
ABSTRACT: This study aims to
investigate the antibacterial activities of essential oils isolated from
various parts (buds, leaves and stems) of Eugenia
caryophylata. The essentials oils were distillated by steam distillation,
and the isolated was analyzed by GC and GC-MS. Five components of each sample
of oils (buds, leaves and stems) were identified. Main component in the bud are
eugenol (75.30%), eugenyl acetate (20.93%) and β-caryophyllene (3.00%) and eugenol (82.97%), β-caryophyllene (12.84%) in
leaf oil, while in stem oil eugenol (97.75%). The oils were tested for in
vitro antimicrobial activities against Gram-positive bacteria (Staphylococcus
aureus and Bacillus subtilis), the Gram-negative bacteria (Escherichia
coli and Salmonella typhimurium).
The essential oils of bud, leaf and stem oil show that antibacterial activity
against Gram-positive and Gram-negative bacteria.