November 2015

Extraction, fractionation and assessment of antioxidant activities of active components of Aframomum sceptrum seeds

A simple procedure of extraction, fractionation and assessment of organoleptic and antioxidant properties of Aframomum sceptrum seeds was carried out, and the results were compared with a currently used synthetic antioxidant, butylated hydroxy toluene (BHT). Extraction was carried out using Soxhlet extractor and fractionation of the ethanolic extract was accomplished using vacuum liquid chromatography (VLC). Various...

Author(s): Nwankwo Patience Okwuchi

November 2015

Nitrate contents in some vegetable leaves in Sokoto Metropolis, Nigeria

Popular Nigerian vegetables namely, cabbage, spinach, bitter leaf, water leaf, ewedu, roselle and lettuce obtained from Sokoto metropolis, Nigeria were analysed for nitrate contents by ultra-violet (UV)-spectrophotometric method. The fresh leaves of the samples were chopped and ground using mortar and pestle for the analysis. Absorbance of each sample was obtained in three replicate and the calibration graph of...

Author(s): Abdullahi, A. S., Usman, J., Muazu, S., Abba, Y. and Ibrahim, M. K.