Department of Chemistry: Recent submissions
Now showing items 41-60 of 337
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Anticancer activity of Eugenia jambolana seeds against Hep2 cell lines
(ResearchGate, 2015)Cancer is a life-threatening disease and leads to high rates of mortality worldwide, after cardiovascular disease, is the second leading cause of death. Investigations for finding new plant based anticancer compounds ... -
Evaluation of malaria spread in relation to poor environmental conditions at Kibaha district (Tanzania)
(Open Access Science Research Publisher, 2015)Communicable diseases cause a lot of out- patient attendance resulting to huge allocation of funds by both Governmental and Non – governmental organizations in combating them. A cross section study was conducted at Maili ... -
An investigative study of dwarf mango (Boribo Muyini) seed kernel extract against inflammatory agent Staphylococcus aureus
(Journal of Scientific and Innovative Research, 2015)Alternative herbal medicine has been used to treat various infections from centuries. Natural plants contain Phyto constituents having similar chemical properties as of synthetic antibiotics. Boribo Muyini a typical Tanzanian ... -
Biosorption for lead (II) ions from aqueous solutions by the biomass of Spyridia filamentosa algal species found in Indian Ocean
(Journal of Scientific and Innovative Research, 2015)Biosorption of heavy metals is an efficient cost effective method for removal of heavy metal ions from industrial wastewater. Studies have shown that algal species biomasses have high uptake of heavy metal ions. In this ... -
Effect of crude and defatted Moringa oliefera seeds as natural coagulants in the removal of physical, chemical and bacteriological parameters from turbid river water
(Journal of Scientific and Innovative Research, 2016)There is a great concern about commercial coagulants and their residues in treated water which leads to Alzheimer disease in old people. For this reason, a lot of research is focused on plants with coagulating properties. ... -
Biodegradation activity of Aspergillus niger lipase isolates from a tropical country garage
(Journal of Scientific and Innovative Research, 2016)Microbial biodegradation of oil pollutants and their derivations has become the most environmental-friendly method in the developing world. Lipolytic enzyme; Aspergillus niger extracted from oil polluted soil has ... -
Kinetic, sorption isotherms, pseudo-first-order model and pseudo-second-order model studies of Cu (II) and Pb (II) using defatted Moringa oleifera seed powder
(The Journal of Phytopharmacology, 2016)In the recent decades, there has been a concern on heavy metals in waste water and high cost of conventional methods of removing heavy metals, for this reason search on adsorbents of biological origin which is low cost and ... -
Comparative Studies of Alum, Maerua Subcordata Root Tuber Powder and Juice Extract as Coagulation/Flocculation Agents
(2016)Turbidity is a great problem in water treatment. Comparative study was done on alum a commercial coagulant; Maerua subcordata root powder and juice extract a locally available natural coagulant to reduce turbidity and ... -
Antimycobacterial and cytotoxic activities of extracts from fungal isolates of Lake Magadi
(AJOL, 2017)In this study, antimycobacterial and cytotoxic activities of ethyl acetate extracts of fungal isolates from Lake Magadi were evaluated. The extracts were tested against Mycobacterium madagascariense (MM) and M. indicus ... -
Monoaminergic system involvement in the antidepressant-like and anxiolytic-like properties of novel β-dihydroagarofuran sesquiterpene alkaloid and triterpenes isolated from Gymnosporia heterophylla aerial parts in mice
(Pergamon, 2022)Gymnosporia heterophylla (synonym Maytenus) is widely used in folk medicine for the treatment of various illness including neurological diseases. This study presents the antidepressant-like and anxiolytic-like effects of ... -
Optimization of biodiesel synthesis from Jatropha curcas oil using kaolin derived zeolite Na–X as a catalyst
(Royal Society of Chemistry, 2022)Biodiesel is an alternative renewable green fuel obtainable from the reaction of plant or animal oil with a low molecular weight alcohol in the presence of a catalyst. However, the cost of its production remains high due ... -
Application of Crude Enzymatic Extract In Mushroom Processing To Recover High Value Products
(Research square, 2021-10-21)In the present study, a fungal strain was isolated from mushroom waste dump-site and was described based on the morphological and molecular characteristics. The crude enzymatic extract was prepared by fermenting pineapple ... -
Synthesis, structural assignments and antiinfective activities of 3-O-benzyl-carvotacetone and 3-hydroxy-2-isopropyl-5-methyl-p-benzoquinone
(Taylor & Francis, 2021-11)In an attempt to synthesize carvotacetone analogues, new 3-O-benzyl-carvotacetone (10) and previously reported 3-hydroxy-2-isopropyl-5-methyl-p-benzoquinone (11) were synthesized from piperitone (7). In this work, we ... -
Utilization of fruit waste substrates in mushroom production and manipulation of chemical composition
(Elsevier, 2022-01)The current study evaluated the effect of mushroom cultivation using fruit waste substrates on yield performance and antioxidant activities. The total phenolic content and the 2, 2-diphenyl-1-picrylhydrazyl (DPPH) radical ... -
Isolation and detailed 1H and 13C NMR structural assignment for three trachylobanes from Psiadia punctulata (Asteraceae) grown in Africa
(Elsevier, 2022-04-01)The first isolation of a trachylobane from an African specimen of Psiadia punctulata (Asteraceae) is presented in this paper. A complete 1H and 13C NMR spectral analysis of this compound and two other trachylobane diterpenes, ... -
A new gnidiflavanone-flavonol dimer and other constituents from Gnidia apiculata
(Taylor & Francis, 2022)A new 3,800-flavanone-flavonol dimer gnidiflavanone-flavonol (1) and 10 known compounds (2–11), including four rare primula type flavones 2–5, were isolated from the roots of Gnidia apicu lata. Compounds 2–5 and 7 were ... -
Synthesis of a pyrrolidine derivative of a carvotacetone and monoterpenes for anti-methicillin-resistant Staphylococcus aureus and anti-cryptococcal properties
(Taylor & Francis, 2022-05-03)Monoterpene derivatives are of great biological relevance in the pharmaceutical industry. In the present study, pyrrolidine deriva tive of a carvotacetone, 3-O-benzylcarvotacetone (1), and selected monoterpenes ... -
Assessment of Fluoride and selected heavy metals in food chain around Fluorspar mining Plant, Kenya
(GJEMPS, 2019)he purpose of the research was to assess the levels of fluoride and selected heavy metals in caprine, mutton, and vegetation around the Fluorspar mining plant in Kerio Valley. Previous studies have reported contamination ... -
A review of tobacco abuse and its epidemiological consequences
(Springer, 2021)Aim The economic burden caused by death and disease in the world is credited mainly to tobacco use—currently linked to approximately 8,000,000 deaths per year with approximately 80% of these faralities reported in low and ... -
Assessment of water quality of the Nyando River (Muhoroni-Kenya) using the water quality index (WQI) method
(Research gate, 2019)The quality of a river water is described by the levels of physico-chemical and microbiological parameters. The aim of the study was to determine the water quality of NyandoRiver water from four sampling stations (Muhoroni, ...
