ABSTRACT Aflatoxins are secondary metabolites produced by several species of Aspergillus fungi, which occur in food crops due to exposure of pre-harvest and post-harvest conditions. Complementary foods are considered an important source of energy, protein and fat for children aged between 6-24 months. The study was carried out to to determine levels of aflatoxins contamination of complementary flour composite and to explore the association between post-harvest handling practices and aflatoxi...
ABSTRACT The purpose of this study was to scrutinize the synergetic effects of the applied calcination temperature and holding time on the synthesis, characterization and photocatalytic antimicrobial applications of the developed polysaccharides based TiO2/Fe3O4 nanocomposite materials. Polysaccharide/TiO2/Fe3O4 nanocomposite materials were synthesized through modified sol-gel process using Titanium (IV) butoxide as precursor and Iron (II, III) oxide nanopowder as a support. The developed co...
ABSTRACT Dye-sensitized solar cells (DSSC) have received considerable attention for transferring clean solar energy into electricity over the previous decade. The Fluorescein dye is one among the metal-free organic dyes having a high potential for application in DSSC because of its environmentally friendly, less cost, easy fabrications. The aim of this study was to apply computational quantum calculation to understand the structural, molecular, electronic and photophysical properties of the ...
Abstract The aim of this study is to extract volatile oil from leaves of Ocimum basilicum L. Purple, and determine the chemical components. It also aimed at preparing cream using Gum Arabic and basil oil, and shea butter and testing its efficiency as a mosquitoe repellent at10% concentration. Ocimum basilicum L. purple gave a 1.5% yield of essential oil. The chemical composition of the oil( investigated by GC-MS) showed that it contained fifty sixconistuents.The main components were1.6-Octad...
Abstract In this study computational chemistry, drug design and docking tools were employed to discover a new class of fluoroquinolone derivatives. Fifty eight compounds were designed and made to dock into the active site of a selected receptor (4eru and 1jij); which was retrieved from protein data bank. It was found that modifications in the molecular structure of the core skeleton of fluoroquinolones structure highly affect at biological activity.It was clearly observed positions 2, 3 and 4...
Abstract Samples of Five different plants(Psidium guajava (Aljawafa),Schoenanthus cymbopogone (Almharib) , Solenostemma argel(Alhargil), Hyphaene thebaica (Aldoum) and Petroselinum crispum (Albagdunas) used in many parts of Sudan as herbal medicine. The plant samples were collected randomly from different locations of sudan.The aim of study is to evaluate the phytochemicals components of plants and their potentiality as a source of biologically activecompounds , in addition determination of ...
Abstract This is a case-control study, conducted to determine the effect of cigarettes smoking on urea, creatinine and uric acid levels in Sudanese male cigarette smokers in a period from March to May 2015. Eighty samples were collected from cigarette smokers without diseases that may affect levels of urea, creatinine and uric acid. And fifty nonsmokers people as control were informed about study and informed consent for participation was obtained. 2.5 ml of venous blood was collected ...
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...
Viral hepatitis is an inflammation of the liver due to viral infections and there are groups of viruses that affect the liver of which hepatitis B and C viruses are the causative agents of sever form of liver disease with high rate of mortality. Laboratory waste handlers who undergo collection, transportation, and disposal of laboratory wastes in the National laboratory for public health are at risk of exposure to acquire those infections which transmit mainly as a result of contaminate...
ABSTRACT This study aimed at developing agar extraction protocol from local Gracilaria salicornia species and investigates its physico-chemical characteristics, production cost and application in tissue culture of Pleurotus HK-37. Purposive sampling was used in collection of Gracilaria salicornia during dry (northeast monsoon) period in 2016 at Chwaka bay, Zanzibar, Tanzania. A 33 factorial experimental design was used in the extraction of treated agar whereby three independent variables of ...
ABSTRACT This research work presents the optimization of the reaction parameters for the productions of HMF from Tanzanian sugarcane bagasse under pressurized conditions using high pressure reactor. The sugarcane bagasse (25 g) was hydrolyzed at different temperatures, different concentrations of the hydrolyzing acid, and different reaction time. A total of 27 hydrolysis experiments were carried out in a non-stirred SS-304 pressure reactor. The sugarcane bagasse was hydrolyzed using sulphuri...
Abstract Infertility is the most widespread and considered as one of the most important unappreciated health problems, particularly in developing countries and about 10% of women failure to achieve a normal pregnancy. This study was conducted to estimate plasma FSH, LH and PRL among infertile Sudanese women. The study included one hundred and fifty women participate in this study and divided into three groups according to the age of participant, group (1) (35- 37 ) years included 44 women, g...
Abstract The aim of this study was to synthesize and characterize carboxymethyl cellulose (CMC) from Phoenix dactylifera L. )date palm( leaves by etherification reaction using sodium mono chloroacetic acid (MCAA) and sodium hydroxide. The optimum reaction parameters were found to be 55 ⁰C, 30% sodium concentration, 3g MCAA/1g cellulose and 4 hours reaction time to give 0.77 as the highest degree of substitution (DS). FTIR shows that successful isolation of cellulose and the synthesized CMC...
ABSTRACT There is an alarming prevalence of drug abuse worldwide. Often the consumers are not aware about the types of substances they are using and the interrelated risks. In recent years, new psychoactive substances appeared in the illicit market. It has been frequently reported that there is the presence of novel psychoactive substances, such as synthetic cathinones, cannabinoids and phenethylamines, which are known to be pharmacologically and toxicologically hazardous. The current study ...