Abstract: In this research work, Low-cost adsorbent was prepared from Camellia sinensis, physicochemical characteristics and the effective removal of Lead and Zinc from an aqueous phase were evaluated.The Camellia sinensis adsorbent precursor was characterized in terms of adsorbent dose, initial concentration and contact time. Aqueous phase adsorption studies were carried out under kinetic studies of pseudo first order, pseudo second order kinetics and the residue concentration of Lea...
This article reports quantum chemical calculations on sulphur trioxide (SO3) and its protonated analogues (HSO3 + and HOSO2 + ) by employing six different computational methods. This covers the simple Hatree Fock (HF) method, coupled cluster method, the Gaussian-4 (G4) compound method amongst others with two different basis sets (6-311++G** and cc-pVDZ). Optimized geometries, bond distance, rotational spectroscopy, dipole moment, proton affinity, vibrational spectroscopy and vibration...
A comparative preliminary study on the extraction and phytochemical profile of methanolic extracts of the leave, stem and root of pennisetum pedicellatum Trin at three growth stages (i.e stage 1, stage 2, stage 3) was carried out. The extracts were analysed to determine the presence of phytochemicals in the plant. The study revealed the presence of alkaloids, flavonoids, saponins and steroids. Tanins were found only in the stems of the plants and steroids were found only in the leaves. The re...
Abstract: Thin films of Copper Nickel Selenide (CuNiSe) were synthesized on glass slides at room temperature using chemical bath deposition (CBD) method. The films were deposited from aqueous solution containing copper ion, nickel ion and potassium selenate (K2SeO4) at varying molar concentration of nickel ion with constant time and pH of the reaction bath. The optical absorption data reveals that films of CuNiSe absorbs strongly at the ultraviolet range of 300 nm and has above 60% transmit...
ABSTRACT The production of potassium salt K2SO4 from unripe plantain agricultural waste was carried out. The sample randomly sourced from canteens located in Owerri West, Imo State. From the result of analysis carried out on the peels was found to contain highest level of K 2.55 ± 1.54 mg/g. other mineral component found were Na 159 ± 1.3 mg/g, Ca 101 ± 0.95 mg/g, Mg 75 ± 0.55 mg/g, Fe 5.8 ± 0.06 mg/g, P 36 ± 1.65. The yield of potassium sulphate, the target of this work is 40.5%...
ABSTRACT The proximate compositions of African elemi nut were investigated by analyzing the moisture content, crude fat, ash content, crude fibre, crude protein and total carbohydrates in the nut. The associations of official analytical chemist (AOAC, 2000) methods were used. The values obtained from the proximate analysis were; moisture content (28.79%), ash (3.41%), crude fiber (2.84%), fat (30.42%), protein (8.40%), carbohydrate (26.14%). The GC-MS characterization revealed that the plant ...
In this work, the radiation monitor 4/4EC was used to measure radiations. The radiations in seven different locations were monitored and measured. The mean of all the readings were taken and subtracted from the background radiation and the radiological survey of the Makurdi River at seven different locations showed no gamma, beta and alpha measurements above typical background levels (5 to 25 at random intervals). The expected dose equivalence of the samples are within acceptable dose limits ...
ABSTRACT Alkaloids are bioactive material mainly obtained from plant with pharmacological activities of one kind or another. The main aim of the present study was to extract and isolate alkaloid from Asystasia gangetica. The extraction of alkaloids from Asystasia gangetica was carried out with methanol using Soxhlet apparatus. Isolation was then followed by fractionating using acid and base in a separating funnel. The percentage alkaloid was determined and the phytochemicals screening...
Abstract The term Geopolymer was introduced to represent the mineral polymers resulting from geochemistry. The process involves a chemical reaction under highly alkaline conditions on Si-Al minerals, yielding polymeric Si-O-Al-O bonds in amorphous form. The actual compressive strength of the concrete depends on various parameters such as the ratio of the activator solution to fly ash, molarity of the alkaline solution, ratio of the activator chemicals, curing temperature etc. In recent years,...
ABSTRACT The present study investigated the effects of a 2-week swimming exercise on scopolamine-induced dementia in a mice model. Thirty-two mice, were randomly divided into four groups (8 rats in each). Group A served as control without exercise and received saline only; Group B served as induced control and receive a single dose of scopolamine (1 mg/kg, i.p.) only on the last day; group C mice were subjected to short-term exercise (swimming) + single dose of scopolamine (1 mg/kg, i.p.) on ...
Transportation problem is one of the real regions of utilization of linearprogramming, in this paper, we would take a gander at how to upgrade the separation andtime taken to make a trip starting with one point then onto the next in a Local community,with Otta Local government area as our concentration, utilizing the transportation display.Having the capacity to accomplish this accomplishment would improve the developmentof individuals and merchandise inside the organization by sparing time a...
ABSTRACT: The composition of essential oil and fatty acids of dry fruits of Tetrapleura tetraptera were analyzed by GC/MS. Forty-four compounds representing 98.5% of the essential oil were characterized. The essential oil was dominated by acetic acid (34.59%), 2-hydroxy-3- butanone (18.25%), butanoic acid (8.35%), 2-methyl butanoic acid (7.58%), 2-methyl butanol (7.45%), butanol (4.30%), 2-methyl butenoic acid (3.65%) and Nerol (3.25%). The fatty acid was dominated by palmitic acid (49.44%), ...
ABSTRACT---- The effect of wrapping type on the nutritive and organoleptic properties of Ogiri-egusi (fermented Citrullus vulgaris) seeds was studied. The leaves used were miracle fruit leaves (Thaumatococcus danellii), cocoyam leaves (Colocasia spp), and banana leaves (Musa sapientum). The melon seeds were hulled, sorted and washed, boiled for 4h, ground and then wrapped in small portions in different leaf-types and fermented for five days. Proximate analysis and sensory evaluation were...
ABSTRACT Polycyclic Aromatic Hydrocarbons are some of the known organic pollutants resulting from incomplete combustion of organic matter. They have been found to be carcinogenic, mutagenic and teratogenic. Much of the previous works on Polycyclic Aromatic Hydrocarbons have been on foods, water, dumpsites and on soil generally. However, this study focuses particularly on soils contaminated with Polycyclic Aromatic Hydrocarbons as a result of a widely used agricultural practice of farmland cle...
ABSTRACT Ginkgo biloba (GB) leaves and extracts have been recognized worldwide for its renowned nutritional and medicinal properties. GB tree is highly grown and used in Asian and South American countries unlike Nigeria. In this study, we examined the nutritional and anti-nutritional compositions of GB leaves (whole dried, and aqueous and ethanol extracts) grown in Nigeria. Association of Official Analytical Chemists (AOAC) method was used to determine the proximate and vitamin compositions w...