Browsing by Author "Owuor, Philip O"
Now showing items 1-11 of 11
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Correlation of theaflavins content and valuations of Kenyan black teas
Owuor, Philip O; Reeves, Stuart G; Wanyoko, John K (John Wiley & Sons, Ltd, 1986-05-01)Correlation between theaflavins content and tasters' valuations of Kenyan black teas generally give positive but statistically non-significant correlation coefficients. In 105 correlations using 12 samples each, only ... -
Effect of anthropogenic activities on the water quality of Amala and Nyangores tributaries of River Mara in Kenya
Nyairo, Wilfrida N; Owuor, Philip O; Kengara, Fredrick O (2015-10-30)Abstract Mau Forest in the upper reaches of the Mara River basin has recently undergone increased forest destruction followed by human settlement and agricultural activities. These anthropogenic activities may be ... -
Effect of copper (II) on the sorption/desorption of chlorsulfuron in five wheat growing regions of the Mara River Basin, Kenya
Ogunah, Joanne A; Owuor, Philip O; Kowenje, Chrispin O; Lalah, Joseph O (Scienceedomain International, 2016) -
The effects of altitude on the chemical composition of black tea
Owuor, Philip O; Obaga, Samuel O; Othieno, Caleb O (John Wiley & Sons, Ltd, 1990-01-01)Changes in quality parameters of crush, tear and curl (CTC) black clonal teas due to variations in altitude within a radius of 10 km were determined. There were significant (P= 0.05) changes in all the quality parameters ... -
Effects of land use change on land degradation reflected by soil properties along Mara River, Kenya and Tanzania
Matano, Ally-Said; Kanangire, Canisius; Anyona, Douglas N; Abuom, Paul O; Gelder, Frank B; Dida, Gabriel O; Owuor, Philip O; Ofulla, Ayub VO (Scientific Research Publishing, 2015-01-01)Human-induced changes to natural landscapes have been identified as some of the greatest threats to freshwater resources. The change from natural forest cover to agricultural and pastoral activities is rampant especially ... -
Effects of regional climate variability on the prevalence of diseases and their economic impacts on households in the Lake Victoria basin of Western Kenya
Ofulla, Ayub V; Gichere, Samuel K; Olado, Geoffrey O; Abuom, Paul O; Anyona, Douglas N; Maloba, Doreen; Matano, Ally-S; Gelder, Owuor; Dida, Gabriel O; Ouma, Collins; Owuor, Philip O; Amayi, Jairus B; Kanangire, Canisius K (Inderscience Publishers (IEL), 2016)Effects of regional climate variability on the prevalence of diseases and their economic impacts on households in the Lake Victoria basin of Western Kenya -
Flavour volatiles of Assam CTC black teas manufactured from different plucking standards and orthodox teas manufactured from different altitudes of Darjeeling
Mahanta, Pradip K; Baruah, Sabitri; Owuor, Philip O; Murai, Toshinobo (John Wiley & Sons, Ltd, 1988-01-01)Biochemical correlations between volatile flavour constituents (VFC) of CTC bluck teas manufactured from fine and coarse plucking of Assam tea and orthodox teas fiom three different altitudes were carried out by GC-MS. ... -
Optimising fermentation time in black tea manufacture
Owuor, Philip O; Reeves, Stuart G (Elsevier, 1986)A comparative study using in-line theaflavins analysis (ILTF), theaflavins of made-tea analysis (TFMT) and tasters' evaluations, to optimise fermentation during tea manufacture, was carried out. All methods obeyed a quadratic ... -
Presence and distribution of mosquito larvae predators and factors influencing their abundance along the Mara River, Kenya and Tanzania
Dida, Gabriel O; Gelder, Frank B; Anyona, Douglas N; Abuom, Paul O; Onyuka, Jackson O; Matano, Ally-S; Adoka, Samson O; Kanangire, Canisius K; Owuor, Philip O; Ouma, Collins; Ofulla, Ayub VO (Springer International Publishing, 2015-12-01)Among all the malaria controlling measures, biological control of mosquito larvae may be the cheapest and easiest to implement. This study investigated baseline predation of immature mosquitoes by macroinvertebrate ... -
Spatial distribution and habitat characterization of mosquito species during the dry season along the Mara River and its tributaries, in Kenya and Tanzania
Dida, Gabriel O; Anyona, Douglas N; Abuom, Paul O; Akoko, Daniel; Adoka, Samson O; Matano, Ally-Said; Owuor, Philip O; Ouma, Collins (BioMed Central, 2018-01-12)Vector-borne diseases are increasingly becoming a major health problem among communities living along the major rivers of Africa. Although larger water bodies such as lakes and dams have been extensively researched, ... -
Triterpenes from Elaeodendron schweinfurthianum and Their Antimicrobial Activities against Crop Pathogens
Awino, Sylvia; Arot Manguro, Lawrence Onyango; Owuor, Philip O; Ateka, Elijah M (Scientific & Academic Publishing, 2017-01-26)Phytochemical evaluation of Elaeodendron schweinfurthianum (Loes) extracts led to the isolation of nine compounds which were identified as 3-oxofriedelane (1), 3α- hydroxyfriedelane (2), 3-oxo-29-hydroxyfriedelane (3), ...