https://ujpicr.umyu.edu.ng/index.php/ujpicr <p>UMYU Journal of Pure and Industrial Chemical Research (abbreviated: UJPICR) is an official publication of the Department of Pure and Industrial Chemistry, Umaru Musa Yar’adua University, Katsina, Nigeria founded in 2021. The journal publishes two issues annually in June and December. All contributions in Chemistry and related disciplines are accepted, this include but not limited to Analytical Chemistry, Environmental Chemistry, Physical Chemistry, Theoretical Chemistry, Computational Chemistry, Organic Chemistry, Inorganic Chemistry, Polymer Chemistry, Pharmacognosy, Medicinal Chemistry, Natural Products Chemistry, Renewable Energy, Nanoscience. <strong><em>At present. we accept original research manuscripts (full length or short communication) only</em></strong>.</p> <p>Submissions are made on the confirmation that they have not been published in whole or part, or under review in another journal, and that the corresponding author is authorised by the co-authors to make the submission. Manuscripts are normally screened by the editors to determine their suitability in terms of originality, extent of contribution to the field of the study, and conformity with the writing guidelines of the journal. At this stage, editors may request minor or major revisions or outrightly reject the submission without sending them to the reviewers. Authors are strongly advised to ensure that the submission falls under the scope of the journal and that all guidelines related to manuscript preparation are adhered to before submission.</p> <p>Accepted manuscripts are published freely under the Creative Commons Attribution Non-Commercial 4.0 International (CC BY-NC 4.0) license.</p> <p>Authors retain copyright.</p> en-US UMYU Journal of Pure and Industrial Chemical Research E-ISSN: 2814-1628 P-ISSN: 2814-1636 2814-1636 https://ujpicr.umyu.edu.ng/index.php/ujpicr/article/view/42 This study was designed to evaluate the proximate composition of African catfish (Clarias gariepinus) fingerlings carcass fed with varying levels of betaine/ β – glucan feed additive. Combination of betaine/β – glucan feed additive was included into formulated feed with 40% crude protein at; 0.0g/100g (BBG0 i.e. control), 0.325g/100g (BBG1), 0.75g/100g (BBG2), 1.125g/100g (BBG3) and 1.50g/100g (BBG4) in triplicate, fed to C. gariepinus fingerlings (n = 300, 10.0±0.00g) in fifteen (15) plastic tanks (n = 20) at fixed feeding rate of 3% body weight twice daily for twelve (12) weeks. Carcass samples were collected from three (3) fish at commencement and also three (3) fish from each treatment and control at termination of feeding trial for proximate analysis. Data collected was statistically analysed using one - way analysis of variance (ANOVA) at P = 0.05. Crude protein values (67.87±3.5 – 69.85±4.7 %), crude lipid (14.00±1.20 – 14.55±2.40 %), crude fibre (0.38±0.01 – 0.45±0.02 %), moisture (1.42±0.21 – 1.62±0.14 %), ash (10.86±2.5 – 11.86±2.9 %.) nitrogen - free extract (2.92±1.04 – 5.40±1.01 %) were recorded. Combination of betaine/β – glucan feed additive at varying levels employed in this study did not result in statistically significant changes (p>0.05) in the values of crude protein, crude lipid, crude fibre, moisture, ash and NFE Ali Mark Eka Lumi Gambo Dauda Lumi Gambo Dauda Abubakar Salamatu Abubakar Salamatu Copyright (c) 2025 UMYU Journal of Pure and Industrial Chemical Research E-ISSN: 2814-1628 P-ISSN: 2814-1636 2025-06-30 2025-06-30 6 13 https://ujpicr.umyu.edu.ng/index.php/ujpicr/article/view/43 Schiff base ligands Ethane-1,2-diylbis-2-aminoacetimidic acid (L1) and Ethane-1,2-diylbis-2- aminopropanimidic acid (L2), along with their corresponding metal (II) complexes of Ni and Cu, were synthesized and characterized through Fourier Transform Infrared (FT-IR) and UV-Visible spectral analysis, melting point/decomposition temperature measurements, solubility assessments, molar conductivity evaluations, and magnetic susceptibility test. The sharp melting points of the ligands and decomposition temperatures of the complexes indicate their purity. The compounds were predominantly insoluble in non-polar organic solvents but soluble in polar solvents, presuming their polar characteristics. The conductivity measurements demonstrate the electrolytic properties of the compounds, correlating with their solubility in polar solvents. Magnetic susceptibility results indicate that the complexes are paramagnetic, exhibiting tetrahedral geometries in all the Ni (II) complexes and distorted octahedral structures in Cu (II) complexes. The antibacterial activities of the compounds were evaluated against gram-positive Staphylococcus aureus and Streptococcus pneumoniae, as well as gram-negative Escherichia coli and Pseudomonas aeruginosa isolates, the results generally revealed higher activity in L1 complexes compared with L2 complexes. Saleh Mahmud Saleh Mahmud Muhammad Saleh Salga Muhammad Saleh Salga Abubakar Sani Abubakar Sani Copyright (c) 2025 UMYU Journal of Pure and Industrial Chemical Research E-ISSN: 2814-1628 P-ISSN: 2814-1636 2025-06-30 2025-06-30 14 25 https://ujpicr.umyu.edu.ng/index.php/ujpicr/article/view/41 Cassava is a plant that is mainly propagated for food. For the diverse majority of Nigerians, it is a very cheap source of carbohydrate. However, due to its high cyanide content, cassava first has to be processed to remove most of the toxic cyanide before it can be consumed. Depending on the effectiveness of the processing method employed, residual cyanide may persist in the finished product which may pose safety concerns. In this study, the concentration of residual cyanide in five selected samples of cassava processed products (Garri, Akpu, Abacha, Starch and Tapioca) sold at Abraka in Ethiope East Local Government Area of Delta State was determined to ascertain their safety. The concentrations obtained ranged from 0.00 mg/kg to 7.40 mg/kg. A sample of garri recorded a concentration of 4.60mg/kg, while akpu, abacha, starch and tapioca recorded cyanide concentrations of 3.20mg/kg, 7.40 mg/kg, 0.00mg/kg and 0.50 mg/kg respectfully. The concentrations of the cyanides recorded from the processed cassava products analyzed were below the recommended limit of 10mg/kg showing that the processed cassava products analyzed in this study were safe for consumption. Ovie Benedict Enivwenae Odiri Ughumiakpor Copyright (c) 2025 UMYU Journal of Pure and Industrial Chemical Research E-ISSN: 2814-1628 P-ISSN: 2814-1636 2025-06-08 2025-06-08 1 5