Open AccessChemical Composition Analysis and Evaluation of Antibacterial Activities of Essential Oil from Clove (Syzygium aromaticum) Buds
Author(s) -
Trần Quốc Toàn,
Cầm Thị Ính,
Hoang Thi Bich,
Phạm Quốc Long,
Trần Thị Ngân,
Pham Thi Hai Ha
Publication year - 2020
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2020.22358
Subject(s) - syzygium , eugenol , essential oil , bacillus cereus , chemistry , myrtaceae , antimicrobial , caryophyllene , food science , antibacterial activity , methyl eugenol , traditional medicine , botany , bacteria , biology , organic chemistry , medicine , genetics , pest analysis , tephritidae
Essential oils from Syzygium aromaticum (Myrtaceae) were extracted through hydrodistillation method, which applied in different fields such as relieve pain, promote healing, and aromatherapy industry. In this study, essential oil of clove buds was obtained using hydrodistillation method and evaluated for chemical compositions and physico-chemical characteristics. The averaged physico-chemical parameters were determined as specific gravity (1.0203 g/cm3), acid index (21.984), ester index (34.92). Moreover, the hydrodistillation process performance achieved by 6.85%. The composition of essential oils was analyzed by GC-MS, revealing a total of 15 volatile constituents existing in the Syzygium aromaticum oil. The major components were eugenol (76.542%), caryophyllene (4.319%), α-caryophyllene (0.456%), acete-ugenol (18.11%), caryophyllene oxide (0.192%), 4,4-dimethyl tetracyclo[6.3.2.0.(1,8)]tridecan-9-ol (0.12%). Syzygium aromaticum essential oil in this study was found to inhibit five bacteria strains including Bacillus cereus, Staphylococcus aureus, Escherichia coli, Salmonella typhimurium and Pseudomonas aeruginosa. The highest antimicrobial activity of clove essential oil was found for Bacillus cereus strain (14 mm).