Chemisty Research Journal

A Peer Review International Journal

Category: Uncategorised

Phytochemical Composition, Proximate Analysis and Vitamin Content of (Tetracarpidium conophorum) Wall Nut Seed

Abstract This study investigates the phytochemical composition, proximate analysis and vitamin content of Tetracarpidium conophorum (black walnut) seed. Standard procedures were used for the analyses, the result of the phytochemical composition of the walnut seed reveals the presence of the following which increase in this order; tannins < cyanides < terpenoids < saponins < steroids […]

Effect of Transfluthrin-Impregnated Insecticide Paper on Some Biochemical Parameters and Lung Histopathology in Rats

Abstract Serum malondealdehyde (MDA), aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP) and histological analysis of lungs were carried out in twenty rats exposed to smoke from transfluthrin impregnated insecticide paper. The rats were divided into five groups (I, II, III, IV and V) of four each. Group one served as control while Group […]

Relationship between Band gap and particle size of Cadmium sulfide Quantum Dots

Abstract Nanoparticles at quantum dot level are considered to be larger than individual atoms and molecules but smaller than their bulk solid. In such a condition, they are believed to obey neither absolute quantum chemistry nor laws of classical physics. Therefore they have properties that differ significantly from those expected experimentally. Therefore, there are two […]

Phytochemical, Analgesic and Anti-inflammatory Evaluation of the Crude Ethanol and n-hexane Extracts of the Aerial Parts of Laggera aurita Linn.

Abstract The use of herbs to treat disease is almost universal among non-industrialized societies, and is often more available, accessible and affordable than purchasing expensive modern pharmaceuticals. Laggera aurita is a widely used medicinal plant in African countries like Nigeria, Senegal, Tanzania and Ghana. The leaves are the part of the plant reported to be […]

Chemical Constituents from the Stem bark of Vitex negundo L.

Abstract Vitex negundo L. (Verbenaceae) is found in south- eastern Asia, Afghanistan, India, China, Tanzania, Madagascar, Europe, West Indies and North America as a much branched aromatic shrub. The plant parts are used to treat asthma, body pains, diarrhoea, dysentery, dyspepsia, fever, liver, skin and spleen diseases, malaria, piles, rheumatism, sinusitis, spermatorrhoea, sprains, swellings, urticaria, […]

Proximate study, amino acids and Phyto-constituents of raw and boiled Ficus polita Vahl fruits

Abstract The nutritional composition, amino acid profile and anti nutritional factors of raw and boiled Ficus polita fruits were evaluated using standard analytical methods. The proximate composition (%) of the raw fruit meal showed moisture content (5.23%), ash (11.88%), fat (2.09%), fibre (10.42%), protein (9.44) and carbohydrate (66.17%) and energy value of 1362.70 Kcal/kg. Boiling […]

Comparative Analysis of Effect of Alternative Solvents on Extraction of Moringa oleifera Seed Oil

Abstract This paper study Comparative analysis of Moringa oleifera seed oil using alternative solvents (Petroleum ether and Acetone). The influence of different conditions and physicochemical parameters using petroleum ether and acetone were analysed statistically. The results of the physicochemical properties for petroleum ether and acetone are as follows; Peroxide value: (1.16 mEq/kg and 0.84 mEq/kg), […]

Assessment of Antimicrobial, Phytochemical Screening and Gas Chromatography-Mass Spectrophotometric Profile of Crude Chrysophyllum Albidum Essential Oil

Abstract The main purpose of this research work is to investigate and compare the antimicrobial properties of Chrysophyllum albidum seed and stem bark essential oils, against some selected pathogenic isolates, to compare the phytochemical composition of the oil of Chrysophyllum albidum seeds and stem bark, to analyze the chemical compounds responsible for activities of the […]

A Review on Synthetic Methods of Nanostructured Materials

Abstract Interest in Nanoscience and Nanomaterials has remained unabated and has attracted so much attention in recent times. New advances both in the preparation and device fabrication have emerged due the development of nano and material sciences. Scientists from different fields of research such as biologists, chemists, physicists, material scientists, pharmacists and engineers are involved […]

Proximate and Ultimate Analysis of Walnut Shell as a Potential Low Cost Adsorbent using Different Activating Agents (KOH and H2SO4)

Abstract The need to eradicate toxic or unwanted elements present in the environment has given rise to the use of low cost adsorbents. The feasibility of walnut shell as a low cost adsorbent was analyzed via Proximate and Ultimate analysis using two chemically activated agents (KOH and H2SO4). The walnut sample was carbonized at a […]

Computational Evaluation of the Druggability and Biological Activity of Iodo-1,4-dihydropyridine Derivatives

Abstract Several successful antihypertensive medicines already in clinical use are derivatives of 1,4-dihydropyridine (1,4-DHP). They are considered the most potent calcium channel blockers of which, nitro-, chloro- and fluro-1,4-DHP derivatives have been extensively investigated for biological activity [1-5]. Nevertheless, iodo-1,4-DHP derivatives have not received enough attention. Our aims were to evaluate the druglikeness and bioactivity […]

Evaluation of Polycyclic Aromatic Hydrocarbons of Some Woods, Charcoals and Coal of Nasarawa State, Nigeria

Abstract Lafia-Obi coal, woods and charcoals from Keffi, Marke and Shamagay in Nasarawa State were evaluated for the presence of Polycyclic aromatic hydrocarbons (PAHs) using standard methods. Samples were saw-milled and pulverized to 200-mesh size and solvent extracted using n-hexane and dichloromethane at 80oC and 30oC for 48 h and fractionated in alumina column. Both […]

Analysis of Cu and Pb Contamination of Soil and Earth Worm Casts in Kwande Metropolis, Benue Sate-Nigeria

Abstract Soil and Earthworm casts from waste dumpsite around mechanic village in Kwande Local Government were collected and analyzed for Copper (Cu) and Lead (Pb) using Atomic absorption spectrophotometer. The analysis of soil and cast sample around mechanic village gave the concentration (mg/Kg) of copper as 5.21, 5.20, 5.10,5.02, 4.18 and 5.20, 5.19, 4.99, 4.81, […]

Metabolites Composition of Garcinia kola Extract as Potential Substitute for Isomerized Hop Extract in Beer Brewing

Abstract The potential of methanoilc extract of Garcinia kola (bitter cola) as substitute for isomerized hop extract in beer brewing was evaluated. The number of metabolites in each extract was investigated using Thin Layer Chromatography (TLC) technique. The relative proportion of each metabolite in the two extracts was investigated using Gas Chromatography – Mass Spectrometer […]

Sorption Kinetics of Cr(lll), Cd(ll) and Pb(ll) ions from aqueous solution by Monkey bread (Piliostigma thonningii) seed pod

Abstract Adsorbents of natural origin are widely used for industrial wastewater treatment in order to replace currently costly methods of heavy metals removal from solutions. For that purpose, the potential of an agricultural waste, Piliostigma thonningii pod as an adsorbent in the removal of Cr(III), Cd(II) and Pb(II) ions from aqueous solution was investigated. The […]

Explaining the magnetism of gold

Abstract In the present work, a computational study is performed in order to clarify the possible magnetic nature of gold. For such purpose, gas phase Au2 (zero charge) is modelled, in order to calculate its gas phase formation enthalpy. The calculated values were compared with the experimental value obtained by means of Knudsen effusion mass […]

CFD Modeling for Syngas Production from Natural Gas Using Steam Reforming in Nanocatalyst Microreactors

Abstract Production of syngas as a raw and intermediate material is very important for industries. Despite numerous attempts made in industry, there are still many challenges in its production. One of these challenges is effect of temperature on catalyst deactivation and conversion which has a direct effect on yield of process. Thus, this study tends […]

Purification and Analysis of bioactive compounds from Citrus aurantifiolia Linn stem bark by Gas- Chromatography-Mass spectrometry

Abstract The objectives of this research are to extract the air-dried stem bark (500g) of citrus aurantifolia with methanol using cold infusion (maceration) technique, partition the extract  with solvents of graded polarities (n-hexane, ethyl acetate, n-butanol suspended in water) and phytochemically screened and fractionate and purify the n-butanol partitioned portion using a combination of column […]

Isolation and Structural Elucidation of 20 hydroxyecdystone from Vitex doniana Sweet Stem bark (Black plum)

Abstract The ethanolic extract of Vitex doniana stem bark (11.9 g) was subjected to a silica gel accelerated column chromatography and eluents fractions (150 ml aliquots) obtained were collected and monitored with thin layer chromatography (TLC). Fractions with similar Rf values from same solvents system were poled together. Phytochemical test of all the fractions were […]

Preparation and Study of A.C. Electrical Properties of (PVA-PVP-CdS) films

Abstract Casting method have been prepared films from composites of Polyvinyl alcohol and polyvinyl pyrrolidone(PVA-PVP) doped with different weight percentages of Cadmium sulfide (CdS).By using LCR meter in the frequency range (100 Hz to 5 MHz) at room temperature  to study the A.C electrical measurement of the films. The effectsof A.C electrical possessionsof PVA-PVP-CdS films […]

Study of AC electrical properties of (PVA-PEG-Sb2O3) Composites

Abstract The aim of this study is investigation of AC electrical properties for (PVA-PEG- Sb2O3) composite material at different frequencies which they ranged from 100Hz -6MHz. The PVA-PEG- Sb2O3 composite prepared using solution casting method. The experimental results have shown that the dielectric constant(ɛ) and dielectric loss (δ) decreases with increasing the frequency, it also […]

Synthesis and Antimicrobial Activity of Some 3-(N-Arylcarboxamido)-N-benzyl halides

Abstract Some 3-(N-arylcarboxamido)-N-benzylchlorides, bromides and iodides were synthesized by quaternization of N-arylnicotinamides with benzyl halides. N-Arylnicotinamides were obtained by acylation of aniline, 1- and 2-naphthylamines with chloride of nicotinic acid. The synthesized salts were employed in antimicrobial tests against both Gram- negative, Gram-positive bacteria and fungus using the microdilution method. Antimicrobial tests indicated that all […]

Concentrations of Physicochemical Properties and Polycyclic aromatic hydrocarbons in Soil at Akala-olu Ahoada West Rivers State Nigeria

Abstract The levels of Polycyclic Aromatic Hydrocarbons, Physicochemical Properties and Heavy Metals in Akala-Olu, a crude oil producing community in Rivers State were assessed using standard methods recommended by APHA, Loganathan and EGASPIN for physiochemical parameters, Chromatograph (HP5890 Series II) for PAHs and Atomic Absorption Spectrophotometer for heavy metals. The results showed ranges of pH […]

Quality Assessment and Levels of Polycyclic Aromatic Hydrocarbons in Oil Contaminated Soils in Parts of Rivers State Nigeria

Abstract The levels of Polycyclic Aromatic Hydrocarbons, Physicochemical Properties and Heavy Metals in Lube and Diesel Oil contaminated soils around automobile mechanic workshops in parts of Rivers State were assessed using standard methods recommended by APHA, Loganathan and EGASPIN for physiochemical parameters, Chromatograph (HP5890 Series II) for PAHs and Atomic Absorption Spectrophotometer for heavy metals. […]

Quercetin from n-butanol Soluble Fraction of Crude Ethanol Leaf Extract of Cadaba Farinosa Forssk

Abstract The plant Cadaba farinosa Forssk (Capparaceae) is distributed throughout the world in mostly tropical and sub-tropical regions. It is used in treatment of pains, dysentery, rheumatism, cough, fever, as antidote and neurological disorders. Phytochemical screening of the leaf revealed the presence of alkaloids, anthraquinones, carbohydrates, cardiac glycosides, flavonoids, glycosides, saponins and tannins. Silica gel […]

Optimization of Graham Glass Condensing Models for Extraction of Natural dye and Rate of Solvent Recovery Process

Abstract This study was undertaken with a view to investigate the effects of the number of bulbs on performance of A Graham outer jacket glass condensers. AutoCAD was used to design  Graham condensers varying the number of bulbs from one to ten (1-10) on the outer jacket; while maintaining the following specifications, outer bulbs size […]

Inhibition of Oilfield Scales using Plant Materials: A Peep into Green Future

Abstract Oilfield scales have been effectively managed using scale inhibitors derived from inorganic and organic polyphosphates, carboxylic acid and carbohydrate based polymers, and ethylene diamine tetracetic acid (EDTA) based compounds. Many of these compounds are toxic and very expensive. Providentially, some of the active functionalities present in these compounds could be obtained from isolates or […]

New Studying for One-pot Multicomponent Reactions to Prepare Novel Furochromone Compounds with Antitumor Activity

Abstract The refluxing of furochromone carboxaldehyde (1) and dimethyl acetylene dicarboxylate with amine derivatives namely m-nitroanilline, p-methylanilline, o-aminophenol, o-anisidine and p-anisidine to give compounds (2a-e). While the reaction of mixture of furochromone carboxaldehyde (1) with dimethyl acetylendicarboxylate in the presence of cyclohexyl isocyanide to afford compound (3). The reaction mixture of furochromone carboxaldehyde (1), cyclohexyl […]

Synthesis of novel [4, 9-dimethoxy-5H-furo [3, 2-g] chromen-5-one] derivatives with antiproliferative potency towards breast and hepatic cancer cell lines

Abstract Chromen derivative (2) was obtained by the reaction of [cyclohexyl isocyanide, furochromone carbaldehyde (1), cyclohexane-1, 3-dione]. Also, reaction of compound (2) in the presence of semicarbazide hydrochloride to proceed the compound (3) which react with selenium dioxide to form compounds (4). In one-step, the condensation of cyclohexyl isocyanide, furochromone carbaldehyde (1) and pentane-2-dionein pipredine […]

GC-MS Analysis of Induced Metabolites in Cell Suspensions of Cotton (Gossypium hirsutum L.) under Methyl Jasmonate and Ethephon Treatment

Abstract The study aims to determine the phytochemical constituents present in the cell suspensions of cotton elicited by MeJA and ethephon. Elicitors were added alone or in combination. The freeze-dried cells were soaked with 10 mL of methanol 96% and purified through a mini-column of C18. After concentration of filtrate, the dry extract was dissolved […]

Biochemical Studies on Red Algae Gelidium sp. Grown in Egypt

Abstract The present work aims to study the potentialities of macroalgae Gelidium sp. collect from Mediterranean Sea as new source of bioactive substance. Thus, the chemical and biochemical components for these algae were isolated and characterized which includes antioxidant activity. The proximate chemical composition of Gelidium sp. were protein content (13.23 ± 1.06% DW), crude […]

Analysis of Postprandial Hyper-triglyceridemia in Type 2 Diabetes Mellitus (T2DM) Patients with Presence of Micro-albuminuria

Abstract It is postulated that in patients with Type 2 Diabetes Mellitus (T2DM) and presence of microalbuminuria (MA) shows higher postprandial triglyceride than those without MA. The present study therefore analyze the potential association and to elaborate the degree of dependence of T2DM with MA condition on onset of high postprandial (PP) triglyceridemia. A total […]

Water quality index and correlation study for the assessment of water quality and its parameters in Etim Ekpo, Nigeria

Abstract Water bodies can be polluted by the addition of nutrients such as nitrates, phosphates, sulphates and chlorides through urbanization, agricultural, industrial and domestic activities. This study was aimed at determining the pollution status of EtimEkpo River, AkwaIbom State, Nigeria, during wet and dry seasons. Physicochemical parameters of water including, temperature, pH, dissolved oxygen (DO), […]

Comparative Evaluation of Phytochemical Constituents, Bitterness Characters and Essential Oil Contents of Extracts from Four Nigerian Plants as Potential Substitutes for Isomerized Hop Extract in Beer Brewing

Abstract Four selected Nigerian plants namely Azadirachta indica (neem), Garcinia kola (bitter cola), Gongronema latifolium (heckel) and Vernonia amygdalina (bitter leaf) as potential substitutes for hops in beer brewing were evaluated in terms of methanolic extracts. Phytochemical screening of the extracts was carried out using standard methods. The iso-alpha acid and essential oil contents of […]

Studies on the Removal of Petroleum Hydrocarbons (PHCs) from a Crude Oil Impacted Soil Amended with Cow Dung, Poultry Manure and NPK Fertilizer

Abstract The potential effects of animal-derived organic wastes and commercially available NPK fertilizer as nutrient supplements to biostimulate soil indigenous microorganisms for hydrocarbons degradation were investigated. 150 g each of soil samples were spiked with Bonny light crude oil (BLCO) (10 % w/w) and one week after contamination, about 30 g each, of the amendment […]

Phytochemical and in vitro antimicrobial efficacies of the crude flavonoids and saponins rootbark extract of Combretum glutinosum perrot. Ex. Dc.

Abstract The methanol rootbark extract of Combretum glutinosum was subjected to preliminary phytochemical screening and in vitro antimicrobial tests. The methanol rootbark extract revealed the presence of flavonoids, tannins saponins, alkaloid and cardiac glycosides using standard procedures. The antimicrobial activity of the plant extract was assayed by the agar plate disc diffusion and nutrient broth […]

Determination of percentage yield of oil extracted from watermelon seeds (A case study of Mainok, Kaga local government Borno state)

Abstract The extraction of oil from watermelon was successfully conducted using soxhlet apparatus, some chemical and physical analysis of the oil was carried out, and the percentage of the oil is 46. 11%. The proximate and physicio – chemical analysis of watermelon seeds were carried out. The result showed that the seeds had produced yellow […]

Determination of Concentration of Flouride in Some Boreholes (A case study of Monguno Local Government Area)

Abstract Fluoride is a natural mineral that protects and strengthened teeth against cavity. It is usually found in lower concentration in drinking water and foods. The concentration in seawater averages 1.3 (ppm). Fresh water supplies generally contain between 0.01-0.3ppm, whereas the ocean contains between 1.2 and 1.5ppm. In some locations, the freshwater contains dangerously high […]

Synthesis, Characteristics and Antiplasmodial studies of the deoxy and disulphide Derivatives of Dihydroartemisinin

Abstract Malaria parasite has developed resistance to the available and affordable drugs. The world health organization has recommended the use of artemisinin and artemisinin based combination therapy (ACT) for the treatment of chloroquine resistant uncomplicated malaria. The use of the artemisinins is challenged by short half life of the drugs due to the presence of […]

Comparative Analysis of Heavy Metals in Some Vegetables within Maiduguri Metropolis

Abstract Pollution is the undesirable changes in the physical, chemical or biological characteristics of air, water or land that can harmfully affect the health, survival or activities of human or other living organism. Soil is a dynamic habitat for an enormous variety of life-forms.  It gives mechanical support to plants from which they extract nutrients. […]

Flavonoids: The Bioactive Phytochemical Agent–A Review

Abstract Plant, being the major source of medicine is fundamental to the well being of mankind. Today, approximately 80% of world’s population relies on plants-based medicines as their primary source of medications. Therefore, it is evident that “there is a plant for every disease condition on every continent”. Being a bioactive natural products, phytochemicals [fight-o-chemicals] […]

Isolation and Management of Fungal Pathogens Associated with Neck Rot Disease of Onions (Allium cepa L.) in Maiduguri, Borno State

Abstract A survey of some fungi associated with onion bulbs rot was carried out in Maiduguri, Borno State Nigeria. The aim of the study was to isolate and identify the fungal pathogens that cause the onion bulb rot. Onion samples were collected in three markets within Maiduguri, namely, Gamboru, Monday market and Baga markets. Four […]

Kinetics and Mechanisms of the Oxidation of Thiosulphate by Potassium Trisoxalatoferrate (iii) in Aqueous Hydrochloric Acid Medium

Abstract The kinetics of oxidation of S2O32- by K3[Fe(C2O4)3].3H2O  has been investigated in aqueous acid medium at λmax = 420nm, T = 27.0 ± 1.0 °C, I = 0.4 moldm-3 (NaCl) and [H+] = 0.02 moldm-3 (HCl). The reaction is first order with respect to oxidant and reductant concentrations and obeyed the general rate law: […]

Synthesis, structural properties and characterisation of self activating Na2Zr(BO3)2

Abstract In this study, the synthesis, characterization and luminescence properties of the self-activated a novels odiumzirkoniumorthoborate (Na2Zr(BO3)2) was reported. This compound has been successfully synthesized by solid state reaction at 1000 °C  among the initial reactants of Na2CO3, ZrO2 and H3BO3 (molar ratio 1: 1: 2). The crystal structure analysis with X-ray powder diffraction showed […]

Synthesis of P-isopropylacetonate-N-methyl-1,3,5-triaza-7-phosphaadamantane

Abstract A novel phosphine, p-isopropylacetonate N-methyl-1,3,5-triaza-7-phosphaadamantane, has been synthesized as a triflate salt from the reaction of 1,3,5-triaza-7-phosphaadamantane with methyl triflate in dry acetone in the presence of minimal amount of D2O and triflic acid. The compound was characterized by NMR spectroscopy, IR spectroscopy, and mass spectrometry. It was crystallized as the triflate salt, [C13H26N3OP]2+ […]

Water Quality Assessment of Lake Edku using physicochemical and Nutrients Salts, Egypt

Abstract The present work is aimed to assess the water quality status of Lake Edku using the data at various locations on the lake based on the Water Quality Index (WQI). Water Quality Index was applied in ten water quality parameters (pH, Dissolved Oxygen, biological oxygen demand, suspended particulate matter, Electrical conductivity, Nitrate, Nitrite ammonium and […]

Preparation, Microstructure and Cytotoxicity Research on Hydroxyapatite/Chitosan-Chondroitin Sulfate

Abstract In this paper, the nano-hydroxyapatite/chitosan-chondroitin sulfate (Hap/Cs-Chs) composite materials with different mass ratios were prepared by liquid co-precipitation method. On the basis of the microstructure, phase and compressive strength of the composite materials were investigated respectively. The safety of composite materials was evaluated by MMT method. The results showed that Hap/Cs-Chs composite materials exhibited […]

Water treatment chlorination: An updated mechanistic insight review

Abstract Since the 1970s’ disinfection by-products (DBPs) detection, the water treatment specialists’ main focuses were accorded to the DBPs formation, characterization, regulations and control. Involved stages in disinfection process were at a certain level kept at the side as a black box. This paper is a broad review on chlorination applied in water treatment technology […]

Browning, Viscosity and Moisture Sorption Characteristics of Fresh and Stored African Breadfruit Kernel Flour

Abstract Flour was prepared from African breadfruit seeds and was stored in tin can and polyethylene bag at ambient temperature (30 °C) for 5 months. The browning index, viscosity and moisture sorption characteristics of the fresh and stored flour samples were evaluated. The equilibrium moisture content (EMC) slightly increased at low water activities but increased […]

Utilizing CPM/PERT Cost Function and Earned Value System in Monitoring and Controlling Building Projects (A Case Study of Recently Completed 5-Bedroom Detached Duplex at G.R.A, Maiduguri)

Abstract This paper x-rays the use of Critical Path Method-Project Evaluation Review Technique (CPM/PERT) cost function and Earned value system in monitoring and controlling civil and building engineering projects. The system culminates in the progressive generation of the CPI-SPI graphical contour which guides the project team in tracking projects. It is a simple step-by-step approach […]

Efficacy of Cassia nodosa extracts in the management of cercospora leaf spot of sugar beet caused by Cercospora beticola

Abstract Cercospora beticola, the causative agent of cercospora leaf spot (CLS) disease, is a serious problem that remarkably impact the yield of sugar beet worldwide. Our aim was to assess the antifungal effect of a natural and more safe extracts of Leaves, flowers and stem bark of Cassia nodosa and salicylic acid (SA) individually or […]

Adsorption of Cr(lll), Pb(ll) and Cd(ll) ions from aqueous solution by Monkey bread (Piliostigma thonningii) seed pod

Abstract The potential of piliostigma thonningii seed pod (a plant waste) as an adsorbent in the removal of Cd(II), Cr(III) and Pb(II) ions from aqueous solution was investigated in this study. The influences of initial metal ion concentration, pH and temperature on the adsorption process were investigated in a batch study. Maximum percentages of each […]

Lattice energies for metal halides from average orbital electronegativities

Abstract In the present work, an empirical equation is derived, in order to allow the calculation of lattice energies for inorganic monohalides based on the cation radius and the halide average orbital electronegativity:                   UPOT = (-2.739 r+ + 650.676) Ẋ + (3.796 r+ – 370.851), where r+ = cátion radius (pm) and  Ẋ is the […]

A Theoretical Study of the Relationships between Electronic Structure and 5-HT1A and 5-HT2A Receptor Binding Affinity of a group of ligands containing an isonicotinic nucleus

Abstract A formal quantum-chemical analysis of the relationships between the electronic structure of two series of isonicotinamide derivatives and their 5-HT1A and 5-HT1B receptor binding affinities was carried out. The electronic structure was calculated at the B3LYP/6-31G(d,p) after full geometry optimization. Statistically significant relationships were obtained for the four cases. The analysis of the results […]

Hypoglycemic Effect of Polyherbal Formulation in Alloxan Induced Diabetic Rats

Abstract Diabetes is a leading cause of morbidity and mortality in the world. There is currently an active search for antidiabetic drugs with greater effectiveness with fewer and less adverse side effects. Therefore, in present study the hypoglycemic potential of polyherbal formulation was investigated in alloxan induced diabetic rats. A list of medicinal plants with […]

Enhanced adsorption capability of Congo red dye onto novel Polypyrrole/ZnO/ZnCr2O4 composite

Abstract In this study, the polypyrrole/ZnO/ZnCr2O4composite as an efficient adsorbent was synthesized by two steps. At first, zinc oxide/zinc chromite (ZnO/ZnCr2O4) composite was synthesized using simple and facile co-precipitation method. Then, ZnO/ZnCr2O4composite was modified by polypyrrole (PPy). The adsorbent was characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR), scanning electron microscopy (SEM) and energy […]

Physico-chemical Studies and Fatty acid Composition of Oil Extracted from Black Weevil Larva from Okitipupa Area in Ondo State, Nigeria (Rhynchophorus phoenicis)

Abstract Studies were conducted on the physicochemical activities and fatty acid compositions of oil from larva of black weevil (Rhynchophorus phoenicis). The percentage yield of the sample was high (69.100±0.20 %), this showed that it is an oily insect. The     refractive index and the specific gravity were 1.410±0.01 and 0.9130±0.01 respectively. The results of the […]

Comparative Studies of the Nutritional and Phytochemical Constituents of African oil baen (Pentaclethra macrophylla Benth) and African bean (Anthonotha macrophylla) for Human Consumption

Abstract The powdered crude sample of African Bean (Opagha in Yoruba Language) (Anthonotha macrophylla) and African oil bean (Pentaclethra macrophylla Benth) were subjected to nutritional, phytochemical and mineral analysis using standard experimental procedures to see whether Anthonotha macrophylla, a totally neglected plant seed in west Africa, could serve as close substitute to African oil bean, […]

Radiological Assessment of Coal Samples from Selected Coal Mines in Nigeria

Abstract Representative samples of coal from Okaba, Kogi State, Enugu, Enugu State, Garin Maiganga, Plateau State, and Gindi Akwati, Gombe State were collected and analyzed for possible radioactivity using Sodium Iodide Detector (NaI). The results shows that coal samples from Okaba coal, Kogi State has 70.622Bq/kg of K-40, 34.183Bq/kg of Ra-226 and 18.826Bq/kg of Th-232; […]

Chemical and Thermal Modification of Okaba Coal for Increased Surface and Adsorption Properties

Abstract Activated carbon produced from Okaba coal was modified using potassium hydroxide and phosphoric acid. The effect of this chemical modification was studied using carbon tetrachloride adsorption. Characterization of the activated carbons using scanning electron microscopy and FTIR analysis showed a greater development of porosity obtained by the modified activated carbons and the FTIR spectra […]

Physico-chemical and Fatty Acid Composition of Oil Extracted by Acetone Solvent from Alligator Pepper (Aframomum Melegueta)

Abstract To achieve a suitable concentration of the active ingredients contained in the plant or seed samples and that their action can be more effective, it is necessary to perform several  procedures through which the active ingredients are extracted with the appropriate solvents, These are selected according to the solubility and stability of the beneficial […]

Investigation of grinding-aid effect on the fineness, particle size distribution, surface area and color properties of calcite powder in dry vertical stirred mill

Abstract In this study, the effect of some chemical additives such as methanol, ethanol, sodium oleat and chloroform on the dry ultrafine grinding of calcite powder (X50= 33 µm, Sv=0.95 m2/cm3) was investigated by using a stirred mill. The experiments were carried out by a batch operation, and the change in average particle size (X50), […]

Effect of drought stress on cell membrane stability, relative water content and some characteristics of crop pants

Abstract Growth is accomplished through cell division, cell enlargement and differentiation, and involves genetic, physiological, ecological and morphological events and their complex interactions. The quality and quantity of plant growth depend on these events, which are affected by water deficit. Cell growth is one of the most drought-sensitive physiological processes due to the reduction in […]

Jatropha tanjorensis Leaf Extract as an Environmentally – Friendly Mild Steel Corrosion Inhibitor in H2SO4 Solution

Abstract The inhibition of the corrosion of mild steel in 1 M H2SO4 solution by Jatropha tanjorensis leaf extract (JTLE) has been studied using weight loss and hydrogen evolution techniques. The results obtained reveal that JTLE effectively inhibited the corrosion of mild steel in H2SO4 solution. The highest inhibition efficiency of 89.73% occurred at 5.0 […]

Enhanced adsorption capability of Congo red dye onto novel Polypyrrole/ZnO/ZnCr2O4 composite

Abstract In this study, the polypyrrole/ZnO/ZnCr2O4composite as an efficient adsorbent was synthesized by two steps. At first, zinc oxide/zinc chromite (ZnO/ZnCr2O4) composite was synthesized using simple and facile co-precipitation method. Then, ZnO/ZnCr2O4composite was modified by polypyrrole (PPy). The adsorbent was characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR), scanning electron microscopy (SEM) and energy […]

Estimation of the gas phase formation enthalpies for superheavy-elements (112, 113, 114, 117, 118, 119 and 120) and some of their +1 and -1 ions

Abstract In the present work, the gaseous phase formation enthalpies for the elements (and their +1 cations) from groups 1,2, 12, 13, 16, 17 and 18 of the periodic table taken from literature [2,3], the electron integrated heat capacity [4], as well as previously calculated IE and EA [5] are employed to estimate the gas […]

A Density Functional Theory analysis of the relationships between the Badger index measuring carcinogenicity and the electronic structure of a series of substituted Benz[a]anthracene derivatives, with a suggestion for a modified carcinogenicity index

Abstract We carried out a quantum-chemical analysis of the relationships between the electronic structure of several substituted benz[a]anthracene derivatives and Badger’s qualitative scale for grading skin and subcutaneous tissue carcinogenic activity. We obtained statistically significant results for the Badger index used for carcinogenicity in the skin but not for the subcutaneous tissue. A new carbon […]

Influence of salt stress on lipids metabolism, Photorespiration, Photosynthesis and Chlorophyll Fluorescence in crop plants

Abstract Salt stress presents an increasing threat to plant agriculture. Among the various sources of soil salinity, irrigation combined with poor drainage is the most serious, because it represents losses of once productive agricultural land. Environmental stress due to disordering in cohesions of membrane lipids and proteins. Lipids are among the most prominent constituents of […]

Antioxidant and Insecticidal Effect of Some Plant Extracts against Callosbruchus maculates (coleoptera: Bruchidae)

Abstract The aim of the study was to test the effect of methanolic guava leaf and pomegranate peel extracts as antioxidant and insecticide. In the Gas Chromatography and Mass spectroscopy analysis, 30 bioactive phytochemical compounds were identified in the methanolic extract of guava leaf and 23 bioactive phytochemical compounds were identified, in the methanolic extract […]

Evaluation of the Physico-Chemical Quality of the Waters of the Oulja Well in the Oum Er-Rbia Watershed

Abstract The Spatio-temporal variations of certain physicochemical parameters were studied, in fact the sampling was carried out during the year 2014. Two samples were taken per well, and per season. The analysis results obtained show that high mineralization of the well water as indicated by the high values of the electrical conductivity and the major […]

Investigation of Adsorptive Properties of Modified Sepiolite as an Efficient Magnetically Recoverable Clay for Removal of Azo Dye from Aqueous Solutions

Abstract In this research, the natural clay of sepiolite (Mg4Si6O15(OH)2·6H2O) were modified by magnetic metal oxide ofNi0.5Zn0.5Fe2O4 to obtain an efficient and magnetically recoverable adsorbent (Ni0.5Zn0.5Fe2O4/sepiolite). The synthesized adsorbent (Ni0.5Zn0.5Fe2O4/sepiolite) was characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR), UV-Vis spectroscopy, scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX).In this study, the […]

A DFT Study of the Relationships between Electronic Structure and Central Benzodiazepine Receptor Affinity in a group of Imidazo[1,5-a]quinoline derivatives and a group of 3-Substituted 6-Phenyl-4H-imidazo[1,5-a]-[1,4]benzodiazepines and related compounds

Abstract We have analyzed the relationships between electronic structure and central benzodiazepine receptor affinity of the title compounds. The electronic structure was obtained at the B3LYP/6-31G(d,p) level after full geometry optimization. Statistically significant relationships were obtained for both groups of molecules. The corresponding partial 2D-pharmacophores were built. They could be used for the design of […]

Effect of drought stress on carotenoid and chlorophyll contents and osmolyte accumulation

Abstract Crop plant experiences water stress either when the water supply to roots becomes difficult or when the transpiration rate becomes very high. Available water resources for successful plant production have been decreasing in recent years. Furthermore, in view of various climatic change models scientists suggested that in many regions of world, plant losses due […]

Pomegranate (Punica granatum) Peels Ameliorates the Glycemic Indices and Antioxidant Gene Transcripts in Diabetic Rabbits

Abstract Context: Pomegranate peel (PP) characterized by high content of antioxidant activity. So, there is an increased interest in its potential role in the amelioration of diabetes mellitus (DM). Objective: This study focused on the ability of PP powder to restrain the detrimental effect of streptozotocin (STZ)-high fat diet (HFD) induced diabetes in rabbits. Material […]

Potatoes Sprout Suppressant Activity of Essential Oils of Monodora tenuifolia, Cymbopogon citratus and Ocimum gratissimum

Abstract Storage of potato for a long time is very challenging because of sprouting. Sprouting affects the quality of table potatoes and reduces their availability to within a few months after harvest. Short time availability of potatoes after harvest is not economical. The use of synthetic chemical such as chlorpropham to suppress potato sprout growth […]

Effect of Acid Digestion Methods on Total Metals Recovery from Sludge from Water Treatment Plants (WTPS) in Nigeria

Abstract Effect of acid digestion methods on total metal recovery from sludge from water treatment plants in Nigeria was conducted. Sludge samples from four (4) different water treatment plants namely Lower Usuma Dam Water Treatment Plant, Bwari (LUDWTP), Le-Meridien Ibom Hotel and Golf Resort Water Treatment Plant, Uyo (LMWTP), Akwa Ibom State Water Company Water […]

Gmelina arborea Seed Oil Characterization, Proximate and Heavy Metal Analyses

Abstract Oil quality of Gmelina arborea seed was investigated. The oil was obtained by solvent extraction using petroleum ether. Percentage oil yield was 10.82%. Proximate analyses showed that the seed contained 4.6% ash, 3.86% crude fiber, 2.98%crude protein, 5.71%mosture, and specific gravity of 0.89. Characterization of the oil showed that the oil had acidity of […]

Synthesis and antimicrobial activity of some halogenated isopentyl phenols

Abstract Some halogenated isopentyl phenols were synthesized and screened for possible antibacterial and antifungal activities against Staphylococcus aureus, Streptococcus viridans, Escherichia coli, Shigella flexneri, Salmonella typhi, Salmonella typhimurium, B.proteus vulgaris, Pseudomonas aeruginosa, Bacterium antracoides, Bacterium subtilis, Klebsiella rhinoscleuromatis and Candida albicans using the microdilution method. Antimicrobial tests results indicated that all compounds have reasonable activity. […]

GC-MS analysis of ethanolic extract of Boswellia dalzieliihutch (burseraceae) root from Nigeria

Abstract The phytochemistry of ethanolic extract of Boswellia dalzielii root was carried out using GC-MS. This studyis designed at identifying and isolating the major bioactive compounds. Fifteen major compoundswere identified namely; Glycerin, Octanoic acid, 6-Pentyl-5,6-dihydro-2H-pyran-2-one, Decanoic acid, Undecanoic acid, n-Tetradecanoic acid, 2-methy-1- octanol, Hexadecanoic acid, n-Nonyl flouride, Z-11-Hexadecenoic acid, octyl ether, 13-octadecenal,(z), Glycerol 1- palmitate, […]

Synthesis, Characterization, and Antimicrobial Studies of Propionaldehyde Schiff base Metal (II) Complexes

Abstract Metal complexes of Mn(II), Cu(II) and Ni(II)  with Schiff base ligand (HL) derived from condensation of propionaldehyde with ethylenediamine were synthesized in alcoholic medium. The complexes were characterized on the basis of melting point, conductivity, solubility, IR and UV/Visible spectral studies. The in-vitro antibacterial activities of the complexes were tested against different strains of […]

Synthesis, Spectral Characterization and Antimicrobial Activity of Some Metal Complexes of Mixed Antibiotics

Abstract Mixture of cephalexin (Cep) and amoxicillin (amx) in 1:1 mole ratio, interact with transition metal ions to give [M(cep)(amx)].3H2O complexes in 1:1:1 mole ratio, where M = Co(II), Ni(II), Zn(II) and Fe(III). The complexes were characterized by physicochemical and spectroscopic analysis. The UV/Vis spectral data suggestedan octahedral geometry for Co(II), Ni(II) and Fe(III) structures, […]

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