African Journal of
Pure and Applied Chemistry

  • Abbreviation: Afr. J. Pure Appl. Chem.
  • Language: English
  • ISSN: 1996-0840
  • DOI: 10.5897/AJPAC
  • Start Year: 2007

AJPAC Articles in press

Article in Press

Green sonochemical synthesis of silver nanoparticles using bridelia micrantha extract and evaluation of their antibacterial activity.

The emergence of drug resistance and multiple drug resistance has necessitated the discovery of novel strategies for development of new generation of antimicrobial agents from natural substances for control of microbial infections. Metal nanoparticles have proven to have antimicrobial properties, but the chemical methods used in their production use harzodous chemicals and nanoparticles produced are unstable. In this...

Author(s):Kithokoi Kilonzo Jackson, Lawrence Ochoo, John M. Maingi, Sauda Swaleh, Wilson Njue

Article in Press

Antioxidant Activity, Total Phenolic And Flavonoid Content Of Selected Kenyan Medicinal Plants, Sea Algae And Medicinal Wild Mushrooms

Medicinal plants are good sources of bioactive compounds that guards the body against cancer and chronic ailments. A lot of studies have been done on medicinal values of higher plants but less on marine sources and wild non-edible mushrooms. The study aimed to assess the antioxidant activity, total flavonoid and total phenolic content from selected Kenyan medicinal plants, sea algae and mushrooms. The plants were selected...

Author(s):Belinda Nasike Siangu, Swaleh Sauda, Mwonjoria Kingori John, Wilson Mbiti Njue

Article in Press

Toxicity Studies Of African Palmyrah Palm (Borassus Aethiopum) Shoots

Aim and Objectives: The study examined the effect of feeding albino rats with 25%, 50%, and 75% Palmyrah Palm (Borassus aethiopum) shoots with respect to their body weight, liver and kidney function indices. Materials and Methods: Standard methods of biochemical analyses were employed using albino rats as the experimental animals. Results: No mortality was observed in the LD50 test throughout the period of 48hours. Rats...

Author(s):Muhammad Sirajo, Umar, K.J., Hassan S.W

Article in Press

Production and characterization of derived composite biosorbents from animal bone

Composite biosorbents were produced from animal bone by carbonization, activation of animal bone char with phosphoric acid and zinc (II) chloride independently, and the obtained activated carbons were separately impregnated on chitosan. The chitosan was produced from chitin, which was extracted from shrimp shell through deminerization, deproteinization and deacetylation processes. Comprehensive characterization studies...

Author(s):Olafadehan, O. A., Abhulimen, K. E., Adeleke, A. I., Njoku, C. V., Amoo, K. O

Article in Press

Filler characterization, mechanical properties, x-ray diffraction and crosslink density analysis of starch/natural rubber biopolymer composites. By

Starch fillers were extracted from three plant sources namely amora tuber, Tacca lentopeteloides; sweet potato,Ipomoea batatas; yam starch, Dioscorea rotundata and their particle size, pH, amylose, and amylopectin percentage decomposition determined accordingly. The starch was introduced into natural rubber in liquid phase (through gelatinization) by the latex compounding method and compounded according to standard...

Author(s):Uzoh, Raymond D, Buba Ardo A And Osemeahon Sunday

Article in Press

Computational adsorption and density functional theory (DFT) studies on the corrosion inhibition potentials of some phenyl-urea derivatives

The inhibition performance of [(4-Hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-phenyl-methyl]-urea and [(4-Hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-(4-methoxy-phenyl)-methyl]-urea were investigated as corrosion inhibitors using density functional theory (DFT) at the B3LYP/6-31+ G(d,p) level of theory. The calculated quantum chemical parameters correlated to the inhibition of efficiency. The molecular descriptors have been analysed...

Author(s):Department of Chemistry, Ahmadu Bello University Zaria, Kaduna State, Nigeria.

Article in Press

Fuel oil as an anthropogenic source of iron, manganese, chromium copper and arsenic at Kingtom Power Plant and environs

People all over the world suffer from certain illnesses such as skin disease, cancer as well as liver, kidney and skin damage. Some of these diseases are believed to be associated with certain trace metal. Trace metals are present in plant and animal cells and tissues as they are necessary part of nutrition and physiology. Ingestion of, or exposure to, excess quantities of these metals is often toxic. However, insufficient...

Author(s):Chemistry Department, Fourah Bay College, University of Sierra Leone, Sierra Leone.

Article in Press

Comparative study of oxidation, acetylation and boric acid treatment with various concentrations of NaOH/alcohol on cold water solubility (CWS), amylopectin and amylose content of starches from cassava, potato and corn

The effect of oxidation, acetylation and boric acid treatment and varying concentrations (30, 40 and 50%) of alcohol-alkaline (NaOH/alcohol) modifications on the cold water solubility (CWS), amylopectin and amylose content of starches extracted from cassava, potato and corn were evaluated and compared. The studies were carried out using the determination of cold water solubility (CWS), amylose-amylopectin content and light...

Author(s):Department of Biochemistry, University of Nigeria, Nsukka, Enugu State, Nigeria.

Article in Press

Effect of mineral systems injected with pyrite on copper and zinc removal from aqueous solution part 1

Mineral systems of kaolinite, montmorillonite, kaolinite and their mixtures injected with pyrite were investigated for copper and zinc removal. This study was related to simulated contaminated waters. Reactivity and removal kinetics were studied at room temperature (23 ± 2°C). The results of the empirical model revealed that, proton coefficient of mineral systems exhibited complex behavior. Kinetic model revealed that...

Author(s):Faculty of Science, Niger Delta University, Wilberforce Island, Nigeria.

Article in Press

Adsorption of chromium by brewers spent grain -g- poly (acrylic acid-co-acryl amide) from electroplating effluent

Toxic metal ions have lethal effects on all forms of life and these metal ions could enter the food chain when untreated waste effluents are discharged into the environment. In recent years, the use of low-cost adsorbent materials has been widely investigated in search of replacement for the costly methods that are currently used for removing these toxic metal ions from waste streams. In this study, the remediation of...

Author(s):Materials Division, Federal Institute of Industrial Research, Oshodi (FIIRO) Lagos State, Nigeria. Chemistry Department, Babcock University, Ilishan-Remo, Ogun State, Nigeria.

Article in Press

Study of physico-chemical and thermodynamic parameters of potassium iodide in Oil-DMF solvent

The physico-chemical properties namely viscosity (η), surface tension (γ), conductance (Κ), molar conductance (μ), and thermodynamic parameters like enthalpy change of activation (ΔH*), entropy change of activation (ΔS*), free energy change of activation (ΔG*), molar heat capacity change at constant volume (ΔCv) and molar heat capacity change at constant pressure (ΔCp) of potassium iodide solutions in varying compositions...

Author(s):Department of Chemistry, University of Karachi, Karachi-, Pakistan

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