Chemistry Research Papers/Topics

Correlation Of Leaf Glucose Content With Mineral Nutrients Uptake Of South African Geranium (Pelargonium Sidoides)

ABSTRACT Pelargonium sidoides is a medicinal plant grown in Kenya for export to Germany where it is used in the manufacture of drugs for lung related diseases. The farm contributes to the well being of the local community by providing permanent employment to for over 80 persons, with 80 percent being women. It also offers free pre-primary education to their children including the ones from the neighbourhood. The broad spectrum of activity against viruses and bacteria may be caused by the coum...

The Effects Of Combination Of Minjingu Phosphate Rock And Single Superphosphate Fertiliser On Dissolution Of Minjingu Phosphate Rock In Soils

 ABSTRACT The effect of combinations of superphosphate and Minjingu phosphate rock (a sparingly water-soluble fertiliser) in the percentage ratios of superphosphate to Minjingu phosphate rock of 10:90, 20:80, 30:70, 40:60, 50:50, 60:40, 70:30, 80:20 and 90:10 was studied in a laboratory incubation experiment. Three acid soils from Rift Valley Province having contrasting chemical properties were used. The treatments consisted of three P sources (superphosphate, Minjingu phosphate rock and m...

Kinetic Modeling And Particulate Characterization Of Selected Bio-Hazardous By-Products From High Temperature Pyrolysis Of Goat Meat

ABSTRACT Although molecular toxins and emission of particulates from the thermal degradation of biomass materials such as meat is a complex area of study, it has become necessary to investigate this phenomenon and determine how it affects biological functions and as precursors for cancer, degenerative diseases that stress the respiratory landscape. Accordingly, this study describes the pyrolysis of goat meat in the temperature range 300-525 ˚C. Goat meat sample of 10±0.2 g was heated under...

Isolation And Characterization Of Antimicrobial Compounds From Berries Of Harrisonia Abyssinica (Simaroubaceae).

ABSTRACT Plants are a potential source of antimicrobial compounds. In this study, a plant from the family Simaroubaceae, Harrisonia abyssinica, traditionally used to treat a number of diseases was used. Research has been carried out on its stem bark, root bark and leaves and a number of chemical constituents have been isolated but no research has been carried out on its berries. Therefore the berries of this plant were chosen in order to investigate for antimicrobial compounds. The berries o...

Isolation And Characterization Of Essential Oils From Ocimum Americanum, Lantana Camara, Lantana Trifolia And Tephrosia Vogelii

ABSTRACT The botanical insecticides are generally pest-specific, relatively harmless to non-target organisms and biodegradable. Unlike conventional insecticides which are based on a single active ingredient, plant-derived insecticides comprise of an array of chemical compounds which act concertedly on both behavioural and physiological processes. Thus the chances of pest developing resistance to such substances are less likely. Essential oils are good example of plant compounds with such pro...

Optimizing Thermal Storage Efficiency Of A Salt Gradient Solar Pond Using Polyethylene Membrane

ABSTRACT The need for energy has risen greatly all over the world in recent years. One major source of energy is fossil fuel and most countries get access to this fuel through imports. Besides the rise in cost of fossil fuel, it has serious impacts on the environment which include air pollution and increased greenhouse gases in the atmosphere. Furthermore, this source of energy is nonrenewable and is quickly being depleted. Recently, attention has turned to environmentally benign and sustaina...

Isolation Of Secondary Metabolites From Teclea Nobilis And Rapanea Melanophloeos Active Against Schistosoma Mansoni

ABSTRACT Helminthic infections have severe consequences on the health of millions of people worldwide and cause serious economic losses. Synthetic drugs have been effective wormicides, however, they are expensive, show side effects and develop resistance. This has generated interest in the use of plant based anti-helmintics, which seem to offer a reliable, cheap and cost effective method. In this research, the anti-helmintic activity of secondary metabolites from Teclea nobilis and Rapanea m...

Antimicrobial Phenylpropanoid Esters And Sesquiterpene Lactones From The Leaves Of Tarchonanthus Camphoratus (Asteraceae)

ABSTRACT The plant Tarchonanthus camphoratus belongs to Asteraceae family. Its common name is wild sage or camphor bush. This study was aimed at isolating bioactive phenypropanoid esters and sesquiterpene lactones from the leaves of this plant. A powdered sample of the leaves weighing 500 g was sequentially extracted with of hexane (1.5 L), dichloromethane (1.5 L) and methanol (3 x 1.5 L). The methanolic extract was partitioned between equal volumes (250 ml each) of distilled water. The n-but...

Estimation of Fructosamine and HbA1c Levels in Type1 and Type 2 Diabetes Mellitus (Study in El-Obied City)

This study was conducted to estimate serum fructosamine and HbA1c in patients with type 1 and type 2 DM. 100 blood samples (50 type 1, 50 type 2) were collected from patients during period from February to April 2016, chosen randomly from health insurance – diabetic center and El-obied teaching hospital, and 50 apparently healthy individuals as control group to evaluate and estimate serum fructosamine and HbA1c in diabetic patients. Nitroblue tetrazolium method used to estimate serum ...

Study of Oil from Seeds of (Adansoniadigitata) by GC-M.S

Phytochemical investigation of fruit pulp of Adansonia digitata gave positive reactions for : steroids,terpenes,flavonoids,tannins and glycosides. GC-MS analysis of Adansonia digitataoil was conducted and the identification of the constituents was initially accomplished by comparison with the MS library (NIST) and further confirmed by interpreting of the observed fragmentation pattern.Comparison of the mass spectra with the database on MS library revealed about 90-95% match. The GC-M...

Modeling QSAR, Docking and Grinding Preparation of Some 3.5 Pyrazoline Derivatives, Against AsPC-1 Human Pancreatic Cell Line and U251 Human Glioblastoma Cell Line

The QSAR model were successfully developed to calculate biological activity of 3, 5 di-substituted Pyrazoline derivatives as anticancer agents against AsPC-1 human pancreatic cell line and U251 human glioblastoma cell line, a good correlation models were obtained with R 2 =74.30% and R 2 =75.92% respectively, compounds (5-(4- bromophenyl)-3-(4-nitrophenyl)-4,5-dihydro-1H-pyrazole) and (N, N-dimethyl-4-[3- (4-nitrophenyl)-4,5-dihydro-1H-pyrazol-5-yl] aniline) were found to be the most�...

Spectrophotometric Determination of Nitrite content in Cured Meats

The aim of this study was to determine of nitrite ions (NO-2) in some locally produced, processed meats samples. Twenty three samples were obtained from the local markets in Khartoum state. The cured meat samples include Sausages, Martidala, Beef berger, Basterma, Hot dogs and Frankfurters. Nitrite ions were extracted from the samples by hot water. Nitrite content for each sample extract was measured by Uv-Vis spectrophotometry. Three samples showed nil nitrite content. Twenty samples ...

Removal of Heavy Metals from Oil Fields Drilling Mud Wastewater Using Zeolite.

The aim of this research work was to study the potential capability of zeolites and kaolin to remove some, heavy, metals from drilling mud wastewater. Four samples were used, (three zeolites and one kaolin). Two natural zeolites(Stablite and Stellerite)  collected from Al Gadaref state (East Sudan), synthesizedzeolite from fly ash using sodium hydroxide under hydrothermal  conditions. Kaolin sample collected from Elmerkhiat mountain (North-East Omdurman Sudan). X-ray diffraction (XRD) w...

Molecular Products, Thermal Emissions, And Radical Kinetics From The Thermal Degradation Of Croton Megalocarpus Biodiesel And Binary Transport Fuels

ABSTRACT There is an urgent interest initiated to develop clean energy resources with the aim of reducing exposure to environmental pollutants and explore model fuels that can hasten the achievement of clean energy combustion. In order to optimize the pyrolysis of binary transport fuels, diesel blends of ratios 1:1, 3:2 and 2:3 were each pyrolyzed at a contact time of 5 seconds in a quartz reactor at 1 atmosphere pressure, at a model temperature of 500 ºC. The surface morphology of the parti...

Synthesis And Characterization Of Zeolite And Its Application In Adsorption Of Nickel From Aqueous Solution

ABSTRACT The synthesis and characterization of zeolite and its application in adsorption of nickel from aqueous solution was investigated. Synthesis of zeolite was performed at 90 oC for 8 h. The size of the resulting crystals increased with an increase in the water content of the reaction mixture. The synthesized zeolite was characterized by Scanning Electron Microscopy (SEM) and X-ray Diffraction (XRD) techniques. Crystal structure of the product was determined as zeolite X by XRD. The...


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