Machocho  

Department of Chemistry
Kenyatta University
P.O Box 43844 – (00100 GPO)
Nairobi
Tel: (254) (020) 8710901 ext. 57455
Cellphone: (+254) 722 252877
E-mail addresses: This email address is being protected from spambots. You need JavaScript enabled to view it. or This email address is being protected from spambots. You need JavaScript enabled to view it.

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Publications/Journal Articles

  1. Gitahi, S.M., Ngugi, P.M., Mburu, D.N. and A.K. (2021). Repellent Effects of Selected Organic Leaf Extracts of Tithonia diversifolia (Hemsl.) A. Gray and Vernonia lasiopus (O. Hoffman) against Sitophilus zeamais Motschulsky(Coleoptera: Curculionidae). Hindawi, The Scientific World Journal, 1: 1-13 ID 2718629,
  2. Gitonga, G.M., Ngeranwa, J., Machocho, A.K. and Kiruki, S. (2020). Qualitative phytochemical screening and antipyretic activity of methanolic stem bark extract of Mangifera indica in wistar rats. The Journal of Phytopharmacology, 9(4): 218-223
  3. Gitonga, G.M., Ngeranwa, J., Machocho, A.K. and Kiruki, S. (2020). Phytochemical and Anti-Inflammatory Analysis of Prunus africana Bark Extract. Research Journal of Pharmacognosy, 7(4): 31-38.
  4. Githinji, P.M. Gathirwa, J.W., Ng’ang’a, M.M. and Machocho, A.K. (2020). Triterpenoids from Grewia plagiophylla Schum. Pharmacognocy Communication, 10(3):130-133.
  5. Tapera, M., Wanjau, R., Machocho, A.K, Dzomba, P., Mutsiba, P. and Kaseke, K. (2020). Phytochemical profile of Plecranthus esculentus E.Br obtained from Zimbabwe authenticates its medicinal uses. IOSR Journal of Applied Chemistry (IOSR-JAC), 13(9), 34-41. DOI: 10.9790/5736-1309013441.
  6. Guchu, B.M., Machocho, K., Mwihia, S.K. and Ngugi, M.P. (2020). In Vitro Antioxidant Activities of Methanolic Extracts of Caesalpinia volkensii Harms., Vernonia lasiopus O. Hoffm., and Acacia hockii De Wild. Evidence-Based Comolementary and Alternative Medicine Journal, ID No. 3586268
  7. Tapera, M., Wanjau, R., Machocho, A.K., and Dzomba, P. (2020). Use of Polyphenol Extracts from Dioscorea steriscus and Plecranthus esculentusE.Br Tubers to Curb Oxidative Deterioration of Sunflower Oil. South Asian Research Journal of Natural Products, 3(1), 18-28; Article no.SARJNP.55089.
  8. Tapera, M., Wanjau, R., Dzomba, P., Machocho, A.K., and. Mburu, J. (2020). Phytochemical study to validate the ethnobotanical importance of Dioscorea steriscus tubers obtained from Zimbabwe, STED Journal, 2(1), 1-10. DOI: 10.7251/STED2002001T.
  9. Ngolo P., Nawiri M., Machocho A, and Oyieke H (2019). Pesticide Residue Levels in Soil, Water, Kales and Tomatoes in Ewaso Narok Wetland, Laikipia, County, Kenya Journal of Scientific Research & Reports 24(5): 1-11; Article no.JSRR.48243 ISSN: 2320-0227
  10. Kihagi RW, Amuka O, Machocho AK, Wafula AW (2019). Phytomedicine and Allied Compounds in Both Human and Animal Healthcare. Biomedical Journal of Scientific and Technical Research, 14(2).
  11. Njogu, S.M., Arika, W.M., Machocho, A.K., Ngeranwa, J.J.N. and Njagi, E.N.M. (2018). In Vitro Hypoglycemic Effects of Kigelia africana (Lam); Studies with Alloxan-Induced Diabetic Mice. Journal of Evidence-Based Integrative Medicine 23: 1-10.
  12. John Otieno Abuto, Alice Muchugi, Alex Kingori Machocho (2018). Diversity in the Phytochemical profiles of Warburgia ugandensis Sprague for different populations across the Kenyan Rift Valley. Journal of Pharmaceutical, Chemical and Biological Sciences(41-51).

  13. Njogu, S.M., Arika, W.M., Machocho, A.K., Ngeranwa, J.J.N. and Njagi, E.N.M. (2018). In Vitro Hypoglycemic Effects of Kigelia africana (Lam); Studies with Alloxan-Induced Diabetic Mice. Journal of Evidence-Based Integrative Medicine 23: 1-10.

  14. Abuto, J.O., Muchugi, A. and Machocho, A.K. (2018). Diversity in the Phytochemical Profiles of Warbugia ugandensis Sprague from Different Populations across the Kenya Rift Valley. Journal of Pharmaceutical, Chemical and Biological Sciences 6 (1): 41-51.
  15. Ngolo, P., Nawiri, M., Machocho, A. and Oyieke, H. (2018). Pesticide Use in Pest Management: A case Study of Ewaso Narok Wetland Small-Scale Vegetable Farmers, Laikipia County, Kenya. Journal of Agriculture and Ecology Research International 14 (2): 1-8.
  16. Okwemba, R.I., Tarus, P.K., Machocho, A.K., Wanyonyi, A.W., Waweru, I.M., Onyancha, J.M., Onani, M.O. and Amuka, O. (2018). Isolation, Characterization and Biological activity of Organic extractives from Calodendrum capense (L.f) Thunb, (Rutaceae). Journal of Medicinal Plants Research 12 (13): 139-163.
  17. Mwangi, E.S.K., Keriko, J.M., Machocho, A.K., Wanyonyi, A.W., Malebo, H.M., Chhabra, S.C. and Tarus, P.K. (2010). Antiprotozoal Activity and Cytotoxicity of metabolites from keaves of Teclea trichocarpa. Journal of Mecinal Plants Research 4 (9): 726-731.
  18. Ruttoh, E.K., Bii, C.C., Tarus, P.K., Machocho, A.K., Karimi, L.K. and Okemo, P.O. (2009) Antifangal Activity of Tabernaemontana stapfiana Britten (Apocynaceae) Organic Extracts. Pharmacognosy Research 1 (6): 387-391.
  19. Ruttoh, E.K., Tarus, P.K., Bii, C.C., Machocho, A.K., Karimi, L.K. and Okemo, P.O. (2009) Antibacterial Activity of Tabernaemontana stapfiana Britten (Apocynaceae) Extracts. Afr. J. Trad. CAM 6 (2): 186-194.
  20. Kirira, P.G., Rukunga, G.M., Wanyonyi, A.W., Muthaura, C.N., Geoffrey M. Mungai, G.M., Machocho, A.K. and Isaiah O. Ndiege, I.O. (2007) Tigliane Diterpenoids from the Stem Bark of Neoboutonia macrocalyx, Journal of. Natural Products 70 (5), 842-845.
  21. Machocho, A.K., Chhabra, S.C., Codina, C., Viladomat, F., Bastida, J. (2005) Amaryllidaceae Alkaloids from Crinum kirkii Baker. Proceedings, Kenya Chemical Society International Conference; Kenyatta University, August, 2005).
  22. Mwangi, E.K., Machocho, A.K., Tarus, P.K., Keriko, J.M., Chhabra, S.C., Wanyonyi. A.W. and Malebo, H.M. (2005). Phytochemical and Biological Studies of Teclea trichocarpa and Albizia anthelmintica. Proceedings, Kenya Chemical Society International Conference; Kenyatta University, August 2005)
  23. Machocho, A.K., Bastida, J., Codina, C., Viladomat, F., Brun, R. and Chhabra, S.C. (2004) Augustamine type alkaloids from Crinum kirkii, Phytochemistry 65 (23), 3143-3149.
  24. Machocho, A.K., Win, T., Grinberg, S. and Bittner, S. (2003) Reactions of benzoquinones and naphthaquinones with 1,8-diamino-3,6-dioxanonane and with 1,11-diamino-3,6,9-trioxaundecane. Tetrahedron Letters 44 (29), 5531-5534.
  25. Machocho, A.K., Kiprono, P.C., Grinberg, S. and Bittner, S. (2003) Pentacyclic triterpenoids from Embelia schimperi. Phytochemistry 62 (4), 573-577.
  26. Tarus, P.K., Machocho, A.K., Lang’at, C.C. and Chhabra, S.C. (2002) Flavonoids from Tephrosia aequilata, Phytochemistry, 60, 375-379.
  27. Labranya, J., Machocho, A.K., Kricsfalusy, V., Brun, R., Codina, C., Viladomat, F., Bastida, J. (2002) Alkaloids from Narcissus angustifolius subsp. transcarpathicus (Amaryllidaceae). Phytochemistry 60, 847-852.
  28. Herrera, M.R., Machocho, A.K., Nair, J.J., Campbell, W.E., Brun, R., Viladomat, F., Codina, C. and Bastida, J. (2001) Alkaloids from Cyrtanthus elatus, Fitoterapia 72, 444-448.
  29. Herrera, M.R., Machocho, A.K., Brun, R., Viladomat, F., Codina, C. and Bastida, J. (2001) Alkaloids from Zephyranthes citrina Baker, Planta Medica 67, 191-193.
  30. Nair, J.J., Machocho, A.K., Campbell, W.E., Brun, R., Viladomat, F., Codina, C. and Bastida, J. (2000) Alkaloids from Crinum macowanii, Phytochemistry 54, 945-950.
  31. Machocho, A., Chhabra, S.C., Viladomat, F., Codina, C. and Bastida, J. (1999) Alkaloids from Ammocharis tinneana, Phytochemistry, 51 1185-1191.
  32. Machocho, A., Chhabra, S.C., Viladomat, F., Codina, C. and Bastida, J. (1998) Alkaloids from Crinum stuhlmannii, Planta Medica, 64 679-680.
  33. Machocho, A.K., Lwande, W., Jondiko, J.O., Moreka, L.V.C. and Hassanali, A. (1995) Three new flavonoids from the roots of Tephrosia emoroides and their antifeeding activity against the Larvae of the Spotted Stalk Borer Chilo partellus Swinhoe; International Journal of Pharmacognosy 33 (3), 222-227.

  34. Global Journal of Science Frontier Research: B Chemistry Volume 14 Issue 4 Version 1.0 Year 2014 Type : Double Blind Peer Reviewed International Research Journal Publisher: Global Journals Inc. (USA) Online ISSN: 2249-4626 & Print ISSN: 0975-5896
    Efficacy and Safety Assessment of Launaea cornuta Extracts in the Management of Diabetes Mellitus

  35. US-Africa Collaboration in a Chemical Education Project Involving Analysis of Amaranthus Grain Oil from Selected Agro-Ecological Zones in Kenya
  36. Biflavonoids from an Ethno-Medicinal Plant Ochna holtzii Gilg
  37. A Quantitative Analytical Chemistry Research-based Experiment Involving Comparative Analysis of Amaranth Grain Oils Extracted from Embu and Meru Districts in Kenya
  38. Journal of Kenya Chemical Society Vol. 8: Issue 1, 2014
  39. PROFILING OF THE CHEMICAL COMPOUNDS IN ETHYL ACETATE EXTRACTS OF LAUNAEA CORNUTA ASTERACEAE BY GC-MS
  40. Bisbenzylisoquinoline and hasubanane alkaloids from Stephania abyssinica (Dillon & A. Rich) (Menispermeceae)
  41. The role of phytomedicine in the challenges of emerging, re-emerging diseases; and pathogens resistance to antibiotics
  42. Profiling of antimicrobial properties of Rubus keniensis Standl. Crude methanol root bark extracts against selected human pathogenic bacteria
CONFERENCES/SEMINARS/WORKSHOPS (PRESENTATIONS)
  1. Kenya Healthy Home Healthy Brain Project (K-HHOP); University of Washington and University of Nairobi; Workshop; Gracia Gardens –Nairobi; 5-6 August 2019
  2. Kenya Chemical Society; Generla Requirements for Competence of Testing and Calibration Laboratories Workshop; 20th July 2019
  3. Minet-Kenya; Annual Pension Coference; “Retirement Benefits Adequacy”; The Panari Resort, Nyahururu; 17-18 January 2019
  4. Kenya Chemical Society; Basic Chemical Safety Training; Kenyatta University 9th June 2018
  5. GenAfrica-Kenya; 2nd Annual GenAfrica Conference; 22-23 March 2018
  6. NAPRECA Kenya; International Conference; JKUAT, 8-10 Feb 2018
  7. Kenya Chemical Society; 9th International Conference USIU-Africa 9-12 May 2017
  8. College of Insurance; Trustee Development Program Kenya (TDPK); 24th Feb 2017
  9. Kenyatta University; Intellectual Property Rights Workshop; Industrial Properties in Economic Development; 28th September 2016
  10. Kenya Chemical Society; Nairobi Chapter Symposium; USIU-Africa; 23rd April 2021
  11. University of Kabianga; Workshop for Curriculum Development, Review and Implementation; 9-12 Feb 2016
  12. Regional Workshop on Use of Utility Models and Industrial Designs for SMes in ARIPO Member States; Harare 24-26 June 2015
  13. Kenya Chemical Society International Conference; UoN; 5-8 May 2015
  14. Sadia National Laboratories USA: Advanced Chemical Safety and Security Workshop. UoN; 28-30 April 2015
  15. Centre for Teaching Excellence and Evaluation: Teaching methodology; 14th Nov 2013
  16. NAPRECA Kenya Chapter Workshop JKUAT. 22nd Nov 2013
  17. Kenya Chemical Society Workshop, Nairobi Chapter. Multi Media. 31st August 2013
  18. Kenya Chemical Society Workshop, Nairobi Chapter. TUK. 27th April 2013
  19. The First International Conference on Pesicidal Plants, ICIPE. 21-24 January 2013
  20. Kenya Chemical Society International Conference, Maseno University. 15th to 18th October 2012
  21. Kenya Chemical Society Workshop, Nairobi Chapter. JKUAT. 25th August 2012
  22. Pan-African Natural Products Library Consortium Meeting. Africa Academy of Science, Nairobi. 26th to 27th July 2012. “Natural Products Research at Kenyatta University”
  23. The inaugural Conference on NanoTechnology and material Science in Kenya. Kenyatta University. 18th to 20th July 2012. (Organizer and Session Chairing).
  24. Lake Victoria Research initiative (VicRes) Biennial Forum. Speke Resort Munyonyo Kampala 9th-13th October 2011. The Status of Green Gram Production, Pest and Disease Management in Parts of Lake Victoria Basin.
  25. The 14th NAPRECA Symposium. ICIPE Nairobi. 8th – 12th August 2011. Antimicrobial Activity and Phytochemical Studies of Some Selected Medicinal Kenyan Plants.
  26. International Nanomedicine Workshop on Infectious Diseases of Poverty: Perspectives and Possibilities. Magaliesberg South Africa. 27th to 31st March 2011.
  27. Formulation of Bioprospecting Strategy Framework for Protected Areas for KWS, Whitesands Hotel. Mombasa 27th Feb to 3rd March 2011