SYNTHESIS OF ECO-FRIENDLY SILVER NANOPARTICLES FROM CITRULLUS LANATUS AND KHAYA IVORENSIS POWDERS AND EVALUATION OF THEIR ANTIBACTERIAL PROPERTIES

B. A. 1Kyenge, I. G. Agbidye, U. P. Omenka

Abstract


 Aqueous extracts of Citrullus lanatus and Khaya ivirensis were screened for phytochemicals and both were found to contain saponins, tannins, flavonoid, cardiac glycosides, anthraquinones, steriods and alkaloids. Biosynthesis of silver nanoparticles was carried out from these extracts. The formation and stability of the reduced nanoparticles in the colloidal solutions were monitored using UV-visible spectroscopy, which indicated the reduction of pure silver ions at absorption maxima of 360-397 nm for Citrullus lanatus and 360-399 for Khaya ivirensis respectively. The Fourier transform infra-red spectroscopy (FTIR), indicated the presence of bio-molecules responsible for reduction and stabilization of the nanoparticles. The morphology of the nanoparticles formed from Citrullus lanatus and Khaya ivirensis were both plate-like as shown by scanning electron microscopy (SEM). The nanoparticles from both plants showed potent anti-bacterial activities towards Escherichia coli, a gram negative bacterium.    

Keywords: Citrullus lanatus, Khaya ivirensis, phytochemicals, antibacterial, E-coli.


Full Text:

PDF

Refbacks

  • There are currently no refbacks.


Chemical Society of Nigeria