John O. Igoli

Synthesis, Characterization and Antibacterial Studies of Some Metal Complexes of N-DI (Pyridin-2-YL) Thiourea Derivatives

Omotola M. Fayomi, R. Sha’Ato, Raymond A. Wuana, John O. Igoli, Vashen Moodley & Werner E. Van Zyl · International Research Journal of Pure and Applied Chemistry · 2018

N-(di (pyridin-2-yl) carbamothioyl)-3-nitrobenzamide (L1) and N-(di(pyridin-2-yl) carbamothioyl)-4-nitrobenzamide (L2)) and their copper (II), nickel (II), cobalt (II) and zinc (II) complexes have been synthesized, characterized and tested for antibacterial activity. The ligands...

Open access Research Article 10.9734/IRJPAC/2018/40567

Synthesis of 4-Phenylazo Phenol from Anthocyanins of Delonix regia and Hibiscus sabdariffa Flowers

Oaikhena Z. Esezobor, Bassey A. Maikasuwa, Terrumun A. Tor-Anyiin & John O. Igoli · Chemical Science International Journal · 2015

Anthocyanins extracted from flowers of Delonix regia and Hibiscus sabdariffa were coupled with diazotised aniline. Spectroscopic analysis revealed the resulting product to be 4-phenylazo phenol. This study provides a viable use for anthocyanins as an alternative source of phenol...

Open access Research Article 10.9734/ACSJ/2016/22393

Phytochemical Screening and Antimicrobial Activity of Bryophyllum pinnatum Extracts

Linus Usman Akacha, Jatau Yuwel Dikko, Muluh Emmanuel Khan, John Vershima Anyam & John O. Igoli · Biotechnology Journal International · 2016

The hexane, ethyl acetate and methanol extracts of the wood and stem bark of Bryophyllum pinnatum were investigated for their phytochemical constituents and activity against selected microorganisms. Phytochemicals found present were reducing sugars, saponins, steroids, tannins, a...

Open access Research Article 10.9734/BBJ/2016/28905