Abstract
Methods: Extracts were obtained using ethanol, methanol and water as solvents and the phytochemical composition of the ethanol extract was determined using GC-MS analysis. The antibacterial and antibiofilm activities were done using the tetrazolium microplate assay method. 
 Results: Twenty-seven bioactive phytochemical compounds were identified in the ethanol portion. The dominant compounds were gingerol (10.61%); 2-butanone, 4-(4-hydroxy-3-methoxyphenyl) (9.35 %); 9,12-octadecadienoic acid (8.55 %); 1,3-cyclohexadiene, 5-(1,5-dimethyl-4-hexenyl)-2-methyl (7.74%). The extracts exhibited significant antibacterial activity but stimulated biofilm formation when compared with ciprofloxacin.
 Conclusion: The results of this study show that Zingiber officinalis possesses some antibacterial properties and can be used to prevent and treat infections caused by sensitive bacteria.
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