March 2021

Comparison of homogenization methods for extraction of maize cob metabolites

Previous proteomic studies have shown maize cob tissue to have an essential role in pathogen defense. Currently, there are no studies published regarding neither maize cob metabolomic profiles nor an accepted method of metabolite extraction from cob. This study assesses the reproducibility of metabolite extraction from the cobs of fungal pathogen -resistant and -susceptible cultivars. Hand grinding, mechanical...

Author(s): Jeremy Winders and Tibor Pechan

March 2021

Brewer’s residues and cocoa pod shells as a substrate for cultivation of Pleurotus ostreatus CCIBt 2339 and enzymes production

This work investigated the best composition of a substrate for cultivation of Pleurotus ostreatus CCIBt 2339 using brewer's spent grain (SG) and cocoa pod shells (CP) complemented with hot trub (HT) and/or residual brewer’s yeast (RY). The residue HT was detrimental for cultivation and a substrate composition (%, w/w) of 58% SG + 40% CP + 2% RY – with a C/N ratio of 25.77 g/g – resulted in the best...

Author(s): Carolina Fernandes Pereira, Antônio Zózimo de Matos Costa, Givaldo Rocha Niella, José Luiz Bezerra, Ana Paula Trovatti Uetanabaro and Elizama Aguiar-Oliveira

March 2021

Adsorption of copper (II) ions onto raw Globimetula oreophila (Afomo ori koko) leaves

This study examined the adsorption of copper onto raw Globimetula oreophila leaves. The adsorbent surface nature was examined using scanning electron microscopy and Fourier transform infrared spectroscopy. Adsorption parameters such as the –log10[H+], point of zero charge, initial metal concentration, mass of biomass and contact time were determined. Copper adsorption decreased gradually with pH. The point of zero...

Author(s): Chijioke John Ajaelu and Esther Oremeiyi Faboro