Dr. Atim David Asitok
DepartmentMicrobiology
DesignationSenior Lecturer
EmailAbout Dr. Atim David Asitok
Dr. (Mrs.) Atim David Asitok is a Senior Lecturer in the Department of Microbiology, Faculty of Biological sciences, University of Calabar, Calabar, Nigeria. She was employed by the University of Calabar on April 11, 1994 as a Graduate Assistant and rose through the ranks to her current position. She obtained her B.Sc. (1992), M.Sc. (1999) and Ph.D. (2013) degrees in Environmental Microbiology and Biotechnology from the University of Calabar. Dr. (Mrs.) Asitok earned the University of Calabar staff development awards in 1996 and 2004 for her M.Sc. and Ph.D. programs respectively. She teaches General Microbiology, Microbial diversity and systematics, Biodeterioration, Petroleum and Environmental Microbiology, Microbial physiology, Microbial Genetics, Advanced fermentation technology, Advanced Microbial techniques and serology and Industrial Microbiology at both undergraduate and postgraduate levels. She has successfully supervised 5 PGDs and 2 M.Sc. theses, co-supervised 1 Ph.D. thesis and is currently supervising 7 post-graduate students, besides the over 90 undergraduate completed projects. Dr. Atim Asitok has attended and presented papers at national and international conferences. Her current research projects include (i) Microbial production of polyhydroxyalkanoates (ii) Development of a consortium of bioluminescent bacteria for use in ecosystem hydrocarbon-pollutant bio-monitoring and (iii) Microbial production of gelatinase-free L-asparaginase for treatment of lymphoblastic leukemia. Dr. Asitok is a member of a number of professional associations including the Nigerian Society for Microbiology (NSM), Nigerian Environmental Society (NES), American Society for Microbiology (ASM) and Biopesticide Society of Nigeria (BpSN). She has published 32 peer-reviewed articles in both local and international journals. Besides teaching and research, she has handled several responsibilities and administrative roles in the university and her community. She has served the University as an Acting Head, Department of Microbiology (2016-2018) and is currently the Examinations officer of the Department and Chairman, Departmental Post Graduate committee.
| S/N | Qualification | School Atttended | Started | Finished |
|---|---|---|---|---|
| First school Leaving Certificate (FSLC) | Primary School, Stadium Road,Oron, Akwa Ibom State | 1976 | 1982 delete_forever | |
| West African School Certificate (WASC), | Mary Hanney Secondary, Oron Akwa Ibom State | 1982 | 1987 delete_forever | |
| Bachelor of Science (B. Sc.) in Microbiology Second Class Honors, Upper Division | University of Calabar, Calabar, Cross River State Nigeria. | 1988 | 1992 delete_forever | |
| Master of Science (M. Sc.) in Environmental Microbiology and Biotechnology, | University of Calabar, Calabar, Cross River State Nigeria. | 1995 | 1999 delete_forever | |
| Doctor of Philosophy (Ph.D.) in Environmental Microbiology and Biotechnology, | University of Calabar, Calabar, Cross River State Nigeria. | 2004 | 2013 delete_forever |
| S/N | Publication |
|---|---|
| Asitok, A.D., Ekpenyong, M.G., & Antai, S.P. (2020). Multivariate statistics of fertility parameter fluxes in cement-dust-polluted soils in Mfamosing, Nigeria; impact on agriculture. Journal of Microbiology, Biotechnology and Food Sciences, 9(4), 781-789. | |
| Lennox, J. A., Asitok, A.D., John, G.E. & Etim, B.T. (2019). Characterization of products from sawdust biodegradation using selected microbial culture isolated from it. African Journal of Biotechnology, 18(29), 857-864. | |
| Asitok, A.D., Antai, S.P., Ekpenyong, M.G. & Eyong, U.E. (2019). Growth responses of Pseudomonas fluorescens and Vibrio fluvialis to trivalent chromium toxicity. International Journal of Innovative Science and Research Technology, 4(9), 517-526. | |
| Asitok, A.D., Antai, S.P., Eyong, U.E., & Ekpenyong, M.G. (2019). Growth dynamics of Pseudomonas fluorescens and Vibrio fluvialis exposed to various concentrations of nickel. International Journal of Innovative Science and Research Technology, 4(9), 471-479. | |
| Asitok, A.D., Antai, S.P., & Ekpenyong, M.G. (2019). Growth and extracellular enzyme activity responses of a multi-enzymic strain of Serratia sp. in a simulated diesel-contaminated system. Journal of Agriculture and Ecology Research International, 19(2), 1-11. | |
| Asitok A.D., & Ekpenyong, M.G. (2019). Statistical distribution of halotolerant/halophilic biosurfactant-producing yeasts in Qua Iboe estuarine sediments. International Journal of Sciences, 8(6), 91-104. | |
| Asitok, A.D., & Ekpenyong, M.G. (2019). Comparative analysis of determination methods of glyphosate degradation by Trichoderma asperellum strain JK-28: a multivariate statistical approach. Journal of Agriculture and Ecology Research International, 19(1), 1-14. | |
| Edet, P.E., Asitok, A.D., Ekpenyong, M.G., & Antai, S.P. (2018). Evaluation of the effects of nutritional and environmental parameters on production of extracellular caseinolytic protease by Stenotrophomonas acidaminiphila strain BPE4. International Journal of Sciences, 7(2), 70-81. | |
| Iboyo, A.E., Asitok, A.D., Ekpenyong, M.G. & Antai, S.P. (2017). Selection of Enterobacter cloacae strain POPE6 for fermentative production of extracellular lipase on palm kernel oil processing effluent. International Journal of Sciences, 6 (11), 1-22. | |
| Asitok, A.D., Antai, S.P., & Ekpenyong, M.G.(2017). Water soluble fraction of crude oil uncouples protease biosynthesis and activity in hydrocarbonoclastic bacteria; implications for natural attenuation. International Journal of Sciences, 6(7),5-21. | |
| Ekpenyong, M., Antai, S. Asitok, A. & Ekpo, B. (2017). Response surface modeling and optimization of major medium variables for glycolipopeptide production. Biocatalysis and Agricultural Biotechnology, 10,113-121. | |
| Ekpenyong, M.G., Antai, S P, Asitok, A.D. & Ekpo, B.O. (2017). Plackett-Burman design and response surface optimization of medium trace nutrients for glycolipopeptide biosurfactant production. Iranian Biomedical Journal, 21(4), 249-260. | |
| Ekpenyong, M.G., Asitok, A.D., Odey, A., & Antai, S.P. (2016). Production and activity kinetics of gelatinase by Serratia sp. SLO3. Nigerian Journal of Biopesticides, 1(1), 70-82. | |
| Antai, S.P., Asitok, A.D., Tiku, D.R. & Louis, O.I. (2016). Distribution and frequency of occurrence of bacteria and fungi isolates in garden Street dumpsite in Calabar Municipality, Cross River State, Nigeria. International Journal of Innovative Science, Engineering and Technology, 3(11),185-200. | |
| Asitok, A.D., & Antai, S.P. (2006). Petroleum hydrocarbon utilization and biosurfactant production by Pseudomonas and Bacillus species. Nigerian Journal of Microbiology, 20(1), 824-831. | |
| Esin, A.A. & Antai, S.P. (2002). Biodegradability of the major components of Bonny light crude oil by Bacillus subtilis. Global Journal of Pure and Applied Science, 8(2), 215-222. |
| S/N | Grant | Currency/Amount | Grantor | Date |
|---|---|---|---|---|
| Development of an integrated diagnostic kit and novel alternative cure for viral hepatitis-related infections and disease (Institution’s Research Project) | NGN26,500,000. 00 | Tertiary Education Trust Fund (TetFund) | 2020-01-03 |
| S/N | Conference | Description | Started | Finished |
|---|---|---|---|---|
| Biodegradation of the major components of Bonny light crude oil by Bacillus subtilis. Oral presentation | Oral presentation at the 24th Annual conference and Scientific meeting of Nigerian Society for Microbiology, 10th-14th September, 2000, Igbinedion University, Okada, Benin, Edo State, Nigeria | 2000-09-10 | 2000-09-14 | |
| 2. Isolation of biosurfactant-producing bacteria from crude oil polluted samples of Qua Iboe estuary. Oral presentation at the 25th Annual conference and Scientific meeting of Nigerian Society for Microbiology; | 2nd-6th December, 2001, University of Ado-Ekiti, Ekiti State, Nigeria. | 2001-12-02 | 2001-12-06 | |
| 3. Seasonal microbial tropho-dynamics in the Great Kwa River, South-East of Nigeria. Oral presentation at the 26th Annual Conference and scientific meeting of the Nigerian Society for Microbiology; | 15th-19th July, 2002, University of Uyo, AkwaIbom State, Nigeria. | 2002-07-15 | 2002-07-19 | |
| 5. Plackett-Burman design and response surface optimization of medium trace nutrients for glycolipopeptide-biosurfactant production. Oral presentation at the 39th annual national conference of Nigerian Society for Microbiology | Oral presentation at the 39th annual national conference of Nigerian Society for Microbiology; 19th -23rd September, 2016, University | 2016-09-19 | 2016-09-23 | |
| 4. Response surface modeling and optimization of major medium variables for glycolipopeptide production. Oral presentation at the 39th annual national conference of Nigerian Society for Microbiology; | Oral presentation at the 39th annual national conference of Nigerian Society for Microbiology; 19th -23rd September, 2016, University of Nigeria, Nsukka (UNN), Enugu State, Nigeria | 2016-09-19 | 2016-09-23 | |
| 7. Water soluble fractions of petroleum products uncouple protease biosynthesis and activity in Vibrio fluvialis OWPB63: implications for natural attenuation. | Oral presentation at the 40th Annual National Conference of Nigerian Society for Microbiology; 9th-12th October, 2017, AbubakarTafawaBalewaUniveristy, Bauchi, Nigeria. | 2017-10-09 | 2017-10-12 | |
| 6. Statistical and artificial intelligence modeling and optimization for development of fermentation conditions for commercial biosurfactant production. | Oral presentation at the 40th Annual National Conference of Nigerian Society for Microbiology; 9th-12th October, 2017, AbubakarTafawaBalewaUniveristy, Bauchi, Nigeria. | 2017-10-09 | 2017-10-12 | |
| 8. Multivariate analyses of microbial population dynamics and enzyme activity fluxes along gradients of cement-dust-polluted soils in Mfamosing, Nigeria | impact on agriculture. Oral presentation at the 5th Annual South-East Zonal Symposium of Nigerian Society for Microbiology, 24th-25th May, 2018; Federal Polytechnic, Nekede, Owerri, Nigeria. | 2018-05-24 | 2018-05-25 |