Abstract GC-MS technique was used for determination of chemical constituents of the doum fruit extract. Doum fruits Powder was analyzed by an X-ray fluorescence to determine the major available elemental constituents. The results of GC-MS analysis showed presence of (34) chemical components. The main constituents were Tris(hydroxymethyl) nitromethane (27.67%), 3-omethyl- D-glucose (15.33%), 5-Hydroxymethylfurfural (7.49%), dl-Glyceraldehde dimer (4.19%)and Maltol (3.24%). XRFanalysis indicat...
Abstract In the present study , the fixed oil of Citrullus Colocynthis was extracted from seeds . The oil was analyzed by gas chromatography – mass spectrometry (GC-MS) and 41 components were identified and quantified. Major constituents were :9,12 –octadecanoic acid methyl ester (39.30%),hexadecanoic acid methyl ester (15.82%),methyl stearate (13,39%)and 9-octadecanoic acid methyl ester (12.51%). Theoil was screened for antibacterial and antifungal activities and different antimicrobial ...
ABSTRACT The aim of this study was to investigate the possibility of removing acids from Sudanese heavy crude oil which is characterized by acid number more than 7 mg KOH/g by liquid-liquid extraction technique. In this work polar organic solvents (methanol and ethanol) was used. The processes were applied at different temperatures and organic solvents volumes. The optimum solvent, solvent ratio and temperature were determined. The physical and chemical properties of crude oil sample were te...
Abstract The oil from Coffea Arabica was analyzed by GC-MS.The analysis showed 22 components. The major components are: Hexadecanoic acid, methyl ester (31.84%), 9,12- Octadecadienoic acid (Z,Z)-, methyl ester (%31.46), 9-Octadecanoic acid methyl ester (17.40%), Methyl stearate (10.84%), Eicosanoic acid methyl ester (5.04%). Antimicrobial activity of Coffea Arabica oil was conducted. The oil showed significant activity against Bacillus subtilis, moderate activity against Staphylococcus aureu...
Abstract Moringa oleifera Lam. tree grows in many tropical and subtropical countries. The seed, leaves, root and flowers of M. oleifera are often used in traditional medicine, while the immature pods, leaves and seed are used as nutrition products in human food. This study carried out proximate analysis for mineral elements assessment in dried M. oleifera leaves. Fresh leaves of M. oleifera lam were plucked from M. oleifera trees in River Nile State (Atbara Town). Analyzed for the mineral el...
Abstract The aim of this study was to investigate the chemical composition of kidney stones obtained from some Sudanese patients. The samples were collected after surgical removal. The samples were analyzed by FTIR and XRF spectroscopic techniques. Titrimetric analysis was carried for determination of oxalate content using standard potassium permanganate solution. The IR analysis spectra of the samples showed the appearance of (C-H), (C=O), (O-C), (N-H), (C-C), (P-CH2), (C=C), (P= O), (R-O),...
Abstract Heavy metals are known to be toxic for living organisms even if they are present at low levels. The presence of heavy metals, organic dyes and microbial pollutants in water continue to be a major concern and the removal of such contaminants is considered to be a major problem in environmental remediation. In the present study, activated graphite was used for removal of some heavy metal ions from aqueous solutions by batch adsorption method. The adsorption efficiency of removal of he...
ABSTRACT Dye-sensitized solar cells (DSSCs) are the one among the important device which established a consideration attention for transferring a fresh solar energy to electricity in the most recent decade. Coumarin dye is one among metal free organic dyes which hold a higher potential for operating in DSSC because of its environmentally friendly, inexpensive and easy to fabricate. The aim of this study was to apply computational quantum calculations which persuade to appreciate the molecula...
Abstract The advantages of DNA typing and its use for human identity testing has revolutionized law enforcement investigations in recent years by allowing forensic laboratories to match suspects with minuscule amounts of biological evidence from a crime scene. Equally important is the use of DNA to exclude suspects who were not involved in a crime or to identify the rapist in sexual crimes and in paternity cases from different samples (Evidences) from different cases were collected and extr...
Abstract In this research from Azadirachta Indica (Wild) , neem gum was fractionated by foaming method into two fractions, high protein fraction (HPF) that represents 65% of the weight gum and a low protein fraction (LPF) which represents 35% of the gum. A comparative study between the crude gum and the two fractions was conducted in the scope of their physiochemical properties. Proximate analysis of the crude gum and fractions HPF and LPF respectively revealed that, the moisture content 7.5...
Abstract This study was carried out to investigate the accumulative levels of Pb, Cr, Cd, Ni and Cu in roadside topsoil of three major streets in Khartoum State and the relation between the concentration of these metals and soil chemical properties. The collected roadsides topsoil samples were prepared with an improved closed wet digestion system and the heavy metals concentrations in the extracts were determined using flame atomic absorption spectrometry. The mean concentration ranges of me...
Nowadays, the use of facial makeup among most Sudanese ladies becomes very popular without being aware about the potential dangers that can threaten their health while using these cosmetics. Several facial cosmetics available in Sudanese markets are unsafe. A questionnaire survey and statistical analysis were employed in this investigation. Actual participants size (500) were females, university students (70%), employees ladies (20%), house wives (7.5%) and others (2.5%). It was found th...
In this study Three plants species from eastern and western Sudan were studied: Namely Acacia nubica benth( Laot), Citrus paradise (grapefruit ) and Combretum Hartmonnina Schweinf (Habeel ). The plant material was extracted using 95% ethanol.The crude extracts were subjected to a phytochemical screening which revealed the presence of flavonoids among other phytochemicals .The crude extracts were purified by thin layer chromatography utilizing different solvent systems ,and characterize...
The introductory chapter of this thesis outlines multicomponent reactions and describes in detail the chemistry of the Mannich reaction. The final section of the introduction deals with chemical informatics Ten compounds of β-aminoacetophenone derivatives were synthesized by the condensation of ketone (acetophenone or p-bromoacetophenone) with different aromatic amines and benzaldehyde; general preparative method, ACD/lab programmer method and Swiss target prediction method for synthe...
Vegetable tannage is an eco-friendly method compared with environmental polluting chromium based method of tanning that is commonly used in commercial tanning and which prevents the collagen fibrous protein in animal skins from putrefaction and produces hydrothermal stable product commonly known as leather. Thus study was conducted to improve the tanning efficiency of locally available tanning in the Sudan 'Garad', applying blending method, physico chemical properties of 'Garad', bark an...