Journal of Biotechnological Research

Volume 1, Number 1 (2016) pp 1-10 doi 10.20448/805.1.1.1.10 | Research Articles

 

Antibacterial and Phytochemical Properties of Crude Extract of Zingiber Officinale

Idongesit Ambrose 1Joseph Peter Essien 2Ubong Ekong 3Wesley Braide 4  Gloria Chidiebere 4 Dennis Edem 6
1 Ministry of Environment and Mineral Resources, Uyo, Akwa Ibom State
2 Department of Microbiology, University of Uyo, Uyo, Akwa Ibom State – Nigeria
3 Department of Pharmaceutical Microbiology, University of Uyo, Uyo
4 Department of Microbiology, Federal University of Technology, Oweerri, Imo State – Nigeria
6 Dennis Edem is Department of soil science, university of Uyo, Nigeria

Abstract

This research was carried out on the antibacterial and phyto-chemical properties of aqueous and methanol extracts of the rhizome of Zingiber officinale. The methanol and aqueous extracts of the spice demonstrated high antibacterial potency against Staphylococcus aureous, Bacillus subtilis and Escherichia coli. The effect of the extracts on the test organisms varied with the dilution level used, and methanol extract was generally more inhibitive than the aqueous extract. Phyto-chemical analysis of the extracts confirmed the presence of saponins, flavonoid, cardiac glycosides, polyphenols and anthraquinones. These are anti-oxidative compounds which possibly might have contributed to the high antibacterial potency of the spice.
 

Keywords

Phyto-chemistry Aqueous extract Methanol extract Anti-oxidative compounds

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