Utafutaji Department of Chemistry and Biochemistry Kwa tarehe ya kutolewa kitabu
Now showing items 61-80 ya 113
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LABORATORY ADEQUACY AND ITS EFFECT ON PERFORMANCE IN CHEMISTRYIN SECONDARY SCHOOLS IN KESSES SUB-COUNTY, UASIN GISHU COUNTY KENYA.
(University of Eldoret, 2018)It has been observed that the general poor performance in science subjects is due to inadequate laboratory resources. An expository study designed to investigate laboratory adequacy and performance in secondary school ... -
SUB-ACUTE ORAL TOXICITY OF TRANSFORMER MINERAL OIL IN WISTAR RATS
(University of Eldoret, 2018)There is an increasing trend in Kenya where local deep frying food-vendors use cooking oil blended with transformer mineral oil (TMO) in preparing edible products despite the scant knowledge on possible toxic effects of ... -
PHYTOCHEMICAL ATTRACTANTS AND REPELLENTS FROM SELECTED KENYAN VARIETIES OF MANGO (Mangifera indica L.) AS CONTROL TOOLS FOR MANGO FRUIT FLY, Bactrocera invadens (DIPTERA: TEPHRITIDAE)
(University of Eldoret, 2018)Infestation of mangoes (Mangifera indica L.) by the mango fruit fly, Bactocera invadens (Drew, Tsuruta and White) is a big threat to mango production in Kenya. The pest infestation leads to poor quality fruits that cannot ... -
CHEMICAL COMPOSITION OF ATTRACTIVE BLENDS IN SELECTED OCIMUM SPECIES TRADITIONALLY USED TO LURE HONEY BEES
(University of Eldoret, 2019)The success of sustainable beekeeping depends on possibility of establishing a bee colony. Low hive occupation rate has been identified as one of the prominent challenges facing beekeeping sector in addition to pest attacks, ... -
Chemical compositions of fresh volatiles aromas of some Kenyan Ocimum species
(Journal of Pharmacognosy and Phytochemistry, 2019)Plants of genus Ocimum have unique aromas hence the likelihood of chemical profiles of their fresh volatiles being different. Gas Chromatography-Mass Spectrometry (GC-MS) analysis of head space volatiles of fresh aerial ... -
Chemical compositions of essential oils of some Kenyan Ocimum species
(American Journal of Essential Oils and Natural Products, 2019)The natural aroma of Ocimum species varies, implying that variations in chemical compositions of their essential oils are likely to be observed. Steam distilled essential oils from leaves and flowers of Ocimum kenyense, ... -
Transformer mineral oil ingestion induces systemic sub-acute toxicity in Wistar rats
(Heliyon, 2019)We investigated the potential toxicities associated with the sub-acute ingestion of transformer mineral oil (TMO) at a heated low dose (HLD-50 mg/kg), heated high dose (HHD-500 mg/kg) and unheated high dose (UHD-500 mg/kg) ... -
Investigation of Selected Heavy Metal Ions in Irrigation Water, Soil and Managu (Solanum Nigrum) from Homahills, Homabay County, Kenya
(Journal of Health and Environmental Research, 2019)Levels of selected heavy metals of Mn, Cd, Pb, Zn, Fe and Co were evaluated in irrigation water, soil and managu (Solanum Nigrum) from Homahills, Homabay County, Kenya. The samples were collected purposively and randomly ... -
Safety evaluation and antihyperglycaemic effect of root extract of Maerua decumbens (Brongn.) DeWolf in Wistar rats
(Elsevier, 2020)Local communities living in rural regions of Kenya use the plant, Maerua decumbens (Brongn.) DeWolf for various purposes including water purification (roots), as food (roots and fruits) and medicinal (various parts of ... -
Bioefficay of Chrysanthemum cinerariifolium and Allium sativum Oil Extracts against Sitophilus zeamais
(AER Journal, 2020)1 AER Journal Volume 4, Issue 1, pp. 1-9, December, 2020 RESEARCH ARTICLE Available Online at http://www.aer-journal.info ISSN: 1727-8341 Bioefficay of Chrysanthemum cinerariifolium and Allium sativum Oil Extracts ... -
Prevalence of Agrochemicals Use on Irrigated Vegetables Farms along River Moiben, Uasin-Gishu County
(2020-02-03)The purpose of this study was to carry out a survey on farming practices and agrochemical application along River Moiben in Moiben, Uasin Gishu County where intense agricultural practices are done especially during the dry ... -
Two-dimensional graphene–HfS2 van der Waals heterostructure as electrode material for alkali-ion batteries
(The Royal Society of Chemistry, 2020-07)Poor electrical conductivity and large volume expansion during repeated charge and discharge is what has characterized many battery electrode materials in current use. This has led to 2D materials, specifically multi-layered ... -
Health Risk Assessment Levels of Selected Heavy Metals on Solanum Nigrum, Soils and Water Collected Along River Moiben, Uasin-Gishu County, Kenya
(Archives of Organic and Inorganic Chemical Sciences, 2020-09)The study investigated heavy metals’ levels in soil, Solanum nigrum and irrigation water from intense Moiben irrigated farms located in Meibeki Karuna, Uasin Gishu County. Purposive sampling was used to identify farms ... -
Adsorption of Fluoride from Water by Use of Powdered Tilapia Fish Scales
(African Environmental Review Journal (AER), 2020-12)Ingestion of adequate fluoride (F-) necessary for healthy bones and teeth is realized through food, soil and water while its excess leads to dental, skeletal and soft tissue damage. Defluoridation is one of the conventional ... -
Analysis of Fluoride in Kales (Brassicca oleracea) and Tomatoes (Lycopersicum esculentum) from Nakuru County, Kenya
(African Environmental Review Journal (AER), 2020-12)As vegetables normally form an integral portion of human diet, occurrence of high fluoride in their edible portions can cause significant human exposure to these fluoride residues. The present study was carried out to ... -
EVALUATION OF GARLIC OIL EXTRACT AS POTENTIAL PYRETHRUM SYNERGIST AGAINST SIGNIFICANT POST HARVEST PESTS
(University of Eldoret, 2021)Post-harvest grain loss remains a major challenge facing farmers especially in developing countries. Pyrethrin is natural plant oil that forms the active ingredients of conventional insecticides combined with piperonyl ... -
WATER DEFLUORIDATION USING RAW, MODIFIED AND COMBINED SULPHONATED POLYSTYRENE, CHICKEN FEATHERS AND FISH SCALES
(University of Eldoret, 2021)Adequate fluoride intake is necessary in developing health bones and teeth and for the prevention of dental caries. Too much fluoride intake, however, leads to dental, skeletal and soft tissue damage, an irreversible ... -
ANALYSIS OF FLUORIDE AND SELECTED HEAVY METALS IN KALES (Brassica oleracea) AND TOMATOES (Lycopersicum esculentum) FROM HORTICULTURAL FARMS IN NAKURU COUNTY, KENYA
(University of Eldoret, 2021)Recently field-grown vegetables including curly kales and endive have been reported to accumulate high fluoride levels in their leaves. As vegetables normally form an integral portion of the human diet, the occurrence of ... -
INVESTIGATION OF MAERUA SHRUB (Maerua subcordata) AND YEASTS FROM FINGER MILLET (Eleusine coracana) FOR PRODUCTION OF CHEAP AND EFFICIENT BIOETHANOL IN KENYA
(University of Eldoret, 2021)Bioethanol is an attractive energy source in comparison to fossil fuels because it is renewable and environmentally friendly. The first generation bioethanol is unsustainable due to high cost of food crops and causes food ... -
ANTI-DERMATOPHYTIC ACTIVITY OF Salvia nilotica METHANOLIC LEAF EXTRACT AGAINST Trichophyton mentagrophytes
(University of Eldoret, 2021)Conventional medicine used against dermatophytosis has resulted in treatment failure, relapses of the fungal infection and side effects due to its use. Herbalist in the Tugen community in Kenya claim that Salvia nilotica ...