Other Memberships/Affiliations
University of Eldoret
Degrees:
1989
Undergraduate Biological Systems and Organisms
Bachelor of Science (Botany major/Zoology and Chemistry Minor)
1995
Doctorate Biological Systems and Organisms
Master of Philosophy in Botany (Plant Taxonomy)
Publications resulting from Research
1. Nicholas Kimutai · Elizabeth W Njenga · Pascaline Jeruto · Janet Kosgey · Jonah N Kipkorir · Charles Mutai · Lillian Ng'eny · Richard Korir (2015). Antimicrobial activity and cytotoxicity of selected medicinal plants found in Nandi County, Kenya. African Journal of Pharmacology and Therapeutics 4(3): 86-91 ISSN 2303-9841 Available online at Http://journals.uonbi.ac.ke/ajpt local (refereed article)
2.Emily Jepyegon Chemoiwa, Elijah Oyoo-Okoth, James Mugo-Bundi, Elizabeth W. Njenga, Esther C. Matany, Regina J. Korir and Charles C. Ngugi. (2014). Elemental ratios (C: N) and stable isotopic composition of dominant rotifer species in a tropical eutrophic alkaline-saline Lake Nakuru (Kenya). Hydrobiologia (online first). DOI 10.1007/s10750-014-2123-y. ISSN 0018-8158
3. Chemoiwa, E.J., Abila, R., Macdonald, A., Lamb, J., Njenga, E.W. ,Barasa, E.J. , Chirchir, E.J. (2014). High genetic differentiation among populations of the endangered ripon Barbus altianalis (Boulenger, 1900) in Lake Victoria catchment: Insight from mitochondrial DNA. Journal of Technology and Socio-Economic Development 3: 177-184 ISSN 2223-9227 (Local refereed article)
4. Kamita, M. K. Matu, E. N., Njenga, E. W. Wanga, J. Amalemba, G. Kigondu, E.V. M.
(2014). In Vivo Antifertility Activity and Phytochemical Screening of Selected Kenyan Medicinal Plants. African Journal of Pharmacology and Therapeutics 3 (3): 85-89. ISSN 2302-9841 (Local refereed article)
5. Chemoiwa, E.J., Abila, R., MacDonald, A., Lamb, J., Njenga, E.W. and Barasa, J.E. (2013). Genetic diversity and population structure of endangered Ripon barbell, Barbatus altianalis (Boulenger, 1900) in lake victoria catchment, Kenya based on mitochondrial DNA sequences. Journal of Applied Ichthyology. pg 1-9 DOI: 10.1111/jai.12313
6. Elijah O-O., Muchai, M., Ngugi C.C., Njenga, E.W., Ngure, V., Orina, P.S., Chemwoiwa, E.C. and Wanjohi B. (2011). Zooplankton partitioning in a tropical alkaline-saline endorrheic Lake Nakuru, Kenya: Spatial and Temporal trends in relation to the environment. Lakes & Reservoirs and Management 16:1-13.
7. Viljoen, A.M., Njenga, E.W., Van Vuuren, S.F., Bicchi, C., Rubiolo, P. and Sgorbini, B. (2006). Essential oil composition and in vitro biological activities of seven Namibian species of Eriocephalus L. (Asteraceae). Journal of Essential oils Research 18: 124-128.
8. Njenga, E.W. and Viljoen, A.M. (2006). In vitro 5-Lipoxygenase inhibition and antioxidant activity of Eriocephalus (Asteraceae) species. A short communication. South African Journal of Botany 72: 637-641
9. Njenga, E.W., Viljoen, A.M. and Van Vuuren S. F. (2005). Antimicrobial activity of Eriocephalus L. species. South African Journal of Botany 71 (1): 81-87.
10. Njenga, E.W., Otieno, D.F., (1999). External pollen morphology in the species of Carduus L (Asteraceae- Cardueae) from Kenya. Journal of Paleoecology of Africa. Vol. 26: 219-223
2.Emily Jepyegon Chemoiwa, Elijah Oyoo-Okoth, James Mugo-Bundi, Elizabeth W. Njenga, Esther C. Matany, Regina J. Korir and Charles C. Ngugi. (2014). Elemental ratios (C: N) and stable isotopic composition of dominant rotifer species in a tropical eutrophic alkaline-saline Lake Nakuru (Kenya). Hydrobiologia (online first). DOI 10.1007/s10750-014-2123-y. ISSN 0018-8158
3. Chemoiwa, E.J., Abila, R., Macdonald, A., Lamb, J., Njenga, E.W. ,Barasa, E.J. , Chirchir, E.J. (2014). High genetic differentiation among populations of the endangered ripon Barbus altianalis (Boulenger, 1900) in Lake Victoria catchment: Insight from mitochondrial DNA. Journal of Technology and Socio-Economic Development 3: 177-184 ISSN 2223-9227 (Local refereed article)
4. Kamita, M. K. Matu, E. N., Njenga, E. W. Wanga, J. Amalemba, G. Kigondu, E.V. M.
(2014). In Vivo Antifertility Activity and Phytochemical Screening of Selected Kenyan Medicinal Plants. African Journal of Pharmacology and Therapeutics 3 (3): 85-89. ISSN 2302-9841 (Local refereed article)
5. Chemoiwa, E.J., Abila, R., MacDonald, A., Lamb, J., Njenga, E.W. and Barasa, J.E. (2013). Genetic diversity and population structure of endangered Ripon barbell, Barbatus altianalis (Boulenger, 1900) in lake victoria catchment, Kenya based on mitochondrial DNA sequences. Journal of Applied Ichthyology. pg 1-9 DOI: 10.1111/jai.12313
6. Elijah O-O., Muchai, M., Ngugi C.C., Njenga, E.W., Ngure, V., Orina, P.S., Chemwoiwa, E.C. and Wanjohi B. (2011). Zooplankton partitioning in a tropical alkaline-saline endorrheic Lake Nakuru, Kenya: Spatial and Temporal trends in relation to the environment. Lakes & Reservoirs and Management 16:1-13.
7. Viljoen, A.M., Njenga, E.W., Van Vuuren, S.F., Bicchi, C., Rubiolo, P. and Sgorbini, B. (2006). Essential oil composition and in vitro biological activities of seven Namibian species of Eriocephalus L. (Asteraceae). Journal of Essential oils Research 18: 124-128.
8. Njenga, E.W. and Viljoen, A.M. (2006). In vitro 5-Lipoxygenase inhibition and antioxidant activity of Eriocephalus (Asteraceae) species. A short communication. South African Journal of Botany 72: 637-641
9. Njenga, E.W., Viljoen, A.M. and Van Vuuren S. F. (2005). Antimicrobial activity of Eriocephalus L. species. South African Journal of Botany 71 (1): 81-87.
10. Njenga, E.W., Otieno, D.F., (1999). External pollen morphology in the species of Carduus L (Asteraceae- Cardueae) from Kenya. Journal of Paleoecology of Africa. Vol. 26: 219-223
symposium
2025
society for economic botany-kenya chapter symposium
2025