2017, Vol. 5 Issue 4, Part A
Essential oils of Aframomum danielli and Aframomum melegueta (Zingiberaceae): Chemical composition and antibacterial activity
AUTHOR(S): Oladipupo A Lawal, Isiaka A Ogunwande, Rebamang A Mosa and Andy R Opoku
ABSTRACT:The hydrodistilled essential oils extracted from the dry leaves and seeds of Aframomum danielli and seeds of Aframomum melegueta collected from South West, Nigeria were analyzed by GC and GC/MS. Eight and twenty-one different components representing 92.7% and 94.5% of the total oil contents were identified. The oils of A. danielli were found to be rich in β-pinene (25.1%) and 1,8-cineole (37.2%) for the leaf and seed oil, respectively. While, the oil seed of A. melegueta had 2-octyl acetate (60.4%) as the major compound. Assessement of agar-disc diffusion and broth-microdilution methods for the antibacterial activity of the oils against twelve microorganisms, revealed the oil of A. melegueta to be slightly more active than the oils of A. danielli. Among the organisms tested, Escherichia coli, Staphylococcus aureus, Streptococcus faecalis and Klebsiella pneumoniae with zones of inhibition (ZI) ranging from 13.6 mm -20.6 mm and minimum inhibitory concentrations (MIC) values of 0.2-2.5 mg/mL were the most sensitive to the oils.
Pages: 14-19 | 910 Views 19 Downloads
How to cite this article:
Oladipupo A Lawal, Isiaka A Ogunwande, Rebamang A Mosa and Andy R Opoku. Essential oils of Aframomum danielli and Aframomum melegueta (Zingiberaceae): Chemical composition and antibacterial activity. American Journal of Essential Oils and Natural Products. 2017; 5(4): 14-19.