Professor Victoria O. ADETUNJI



Professor Victoria O. Adetunji Biography                                                                                                                                       Victoria O. Adetunji, is a professor of food safety, food microbiology and Public Health, with a demonstrated history of working in the research and education industry.  Victoria's main research interests are bacterial zoonotic food-borne pathogens of animal origin in food processing and environments (Pathogens under study include: Escherichia coli O157:H7 and other serotypes of enterohemorrhagic E. coli, S. aureus, Salmonella spp., Listeria monocytogenes and Campylobacter jejuni). She has strong professional skills for surveillance of bacterial pathogens, Polymerase Chain Reaction (PCR), Epidemiology, Microbial pathogenicity, control of pathogens and their biofilms in food processing environment, Research Design, and Program Evaluation. She is also interested in antimicrobial resistance and molecular investigation of virulence markers in zoonotic agents. She has experience in the design, development and application of   Food Safety/food quality control and Hazard Analysis Critical Control Point Systems (HACCPs) among local food processors, in particular in the milk and meat product’s value chains. She in addition does research for improved production and preservation of various African fermented and convenience foods of animal origin. Victoria in her role also contributes to the development of the veterinary public health curriculum. She is a Fellow of the College of Veterinary Surgeons Nigeria (FCVSN), member, American Society for Microbiology (AMS), member, the International Association for Food Protection (IAFP), member, International Food Safety and Quality Network (IFSQN) and Organization for Women in Science for the Developing World (OWSD). She is also an alumnus of the Fulbright Scholarship and Faculty for the Feature fellowship of the Schlumberger foundation.


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Victoria Olusola Adetunji
Academic and Professional Qualifications

eg. D.V.M., M.P.V.M, P.H.D.(Ibadan)  FCVSN




Area(s) of Specialisation
Food safety, Food  Microbiology and Public Health

Office and Contact Addresses

Veterinary Public Health and Preventive Medicine University of Ibadan, Ibadan Nigeria.

Tel:00 234 (0) 08059402564


Current Research Projects

(a) Completed


1. Salmonella status of take-away foods in Ibadan City, Nigeria.

2. Dermatophilosis in trade cattle slaughtered in Oyo state.      

3. A retrospective study of the prevalent reproductive cases in dogs and goats in Edo state.

4. Bacteriological status of milk from nomadic Fulani settlements in South - Western Nigeria.

5. Evaluation of bacteria in fresh milk and milk products in southwestern Nigeria.

6. Heavy metal assessment of a Nigerian soft cheese and its coagulants.

7. Novel procedures for the processing of a Nigerian soft cheese and its coagulants.

8. Effects of different planes of meat offals and soyabean meal on morphological characteristics of WAD bucks's spermiogram.

9. Survivability of Listeria monocytogenes and spoilage microorganisms during processing and storage of wara.

10. Evaluation of vaccination of dogs against rabies at the University of Ibadan, Nigeria.

11. Studies on bacteriocin and cellulose production by lactic acid bacteria isolated from wara.

12. Effect of vacuum packaging, temperature and crude extracts of plants on microbial quality of.

13. Studies on the bacteriocins produced by Bacillus spp on microbial counts in stored  cheese.   

14. studies on the  biofilm formation by E. coli, Listeria and Salmonella isolates fromfood processing environments (abattoir, dairy plant).

15. Pathogenesis of L. monocytogenes isolate from cheese: special emphasis on semen picture.

16. Clinico pathologic effect of Bacteriocin from Bacillus spp isolate from on Wistra rats.

(b) In progress


1. Identification and quantification of bacteriocins produced by lactic acid bacteria isolated from fermented milk products.

2. Virulence traits associated with E. coli O157:H7 strains isolated from wara.

3. Public health implications of Salmonella enteritidis isolated from eggs.

4. Studies on the interations between Lactococcus lactis and Listeria monocytogenes in fast foods.

5. Effect of different growth medium on the efficacy of bacteriocins produced by lactic acid bacteria.

6. Studies on the safety of bacteriocin producing bacteria in food preservation.

7. In vivo and invitro studies on the inhibition of Trypanosoma brucei using lactic acid organisms.

8. Efficacy of various sanitizers on E. coli, Listeria and Salmonella biofilms



(A) Articles that have already appeared in Refereed conference proceedings
1.Oyeyemi, M.O., Adetunji, V.O., Ogundipe, G.A.T and Babalobi, O.O. (2000). The prevalence of reproductive conditions in dogs in Edo state Nigeria.  Proceedings of the IXTH Symposium of International Society for Veterinary Epidemiology and Economics (ISVEE9) August 6-11 2000 Breckenridge, Colorado USA pp (1063 -1065).
2. Adeyemi, I.G., Adetunji, V.O and Babalobi,O.O. (2000). Investigation of some take- away foods for salmonella pathogens. Proceedings of the IXTH Symposium of the International Society for Veterinary Epidemiology and Economics (ISVEE9) August 6-11 2000 Breckenridge, Colorado USA pp (828 -830).

(B) Articles that have already appeared in learned journals

3. Adetunji, V.O.,Ogundipe, G.A.T. and Adegbola, J.A. (2001). The prevalence of    dermatophilosis in Trade cattle slaughtered in Oyo state, Nigeria.  Bulletin of Animal Health and Production in Africa. 48:57-60.

4. Adetunji, V.O., Ikheloa J.O., Adedeji A.M and Alonge D.O. (2003). An evaluation of the bacteria in milk products sold in southwestern Nigeria, Nigerian Veterinary Journal. 24 (3) pp. 21-25.

5. Adetunji, V.O., Ajasin, F.O and Adeyemo O.K. (2003). Bacteriological assessment of freshly drawn milk from lactating cows in nomadic Fulani settlements in Oyo State Nigeria, Nigerian Veterinary Journal. 24 (3)pp. 15-19

6.Adeyemi, I.G. Adetunji, V.O., James, V.O., Alonge, D.O (2005) Ten- year (1993 - 2002) Retrospective Evaluation of vaccination of Dogs against Rabies at the University of Ibadan, Nigeria. African Journal of Biomedical Research. 8: 71-77.

7.Oyeyemi, M.O., Adetunji, V.O. and Oyebanji, O. (2006). The effects of Different planes of meat offals and soyabean meal on morphological characteristics of WAD bucks's spermiogram. Veterinarski Arhiv 76 (2) 159- 165.

8. Adetunji, V. O., Alonge, D.O., Singh, R.K. and J. Chen. (2007). Production of wara, West African soft cheese using lemon juice as a coagulant. Journal of Food Science and Technology, Lwt (2008) 41:331-336. [download]

9. Adetunji, V.O. and Adegoke, G.O.(2007) Bacteriocin and cellulose production by Lactic acid bacteria isolated from West African soft cheese. African Journal of Biotechnology. AJB 6(22):(2616-2619) [download]

10. Adetunji, V.O. (2008). Antibiotic Residues and Drug Resistant strains of bacteria in milk products from Ibadan, Southwestern Nigeria. Tropical Veterinarian 26(1&2):1-6

11. Adetunji, V.O., and Adegoke, G.O. (2008). Formation of biofilm by strains of Listeria monocytogenes isolated from soft cheese 'wara' and its processing environment. African Journal of Biotechnology. 7(16): 2893-2897.

12. Adetunji, V.O., and Salawu, .O.T. (2008). West African soft cheese 'wara' processed with Calotropis procera and Carica papaya: A comparative assessment of nutritional values. African Journal of Biotechnology. 7(18): 3360-3362.

13.Adetunji, V.O. (2008)Comparative assessment of the effect of crude extracts of Carica papaya and Terminalia cattapa, and a bacteriocin on vacuum-packed West African soft cheese (wara). African Journal of Microbiology Research Vol.(2) pp. 272-276. [download]

14.Oyeyemi, M.O. Ayinmode, A.B., Adetunji, V.O. and Akin-Taiwo, M.A. (2008). The semen characteristics of West African dwarf bucks infected with Listeria monocytogenes. Bulletin of animal health and production in Africa. 56: 307-313

15.Adetunji, V.O. and Jinru Chen (2009)Survival of bacteria and fungi during manufacture and storage of local cheese . Tropical Veterinarian 27(3): 15-24.

16.Adetunji, V.O. (2010)Virulence characteristics of food processing relevance in isolates of Listeria monocytogenes and Escherichia coli 0157: H7 strains isolated from wara a West African soft cheese. Journal of Microbiology Research Vol. 4 (4), pp. 249-254. [download]

17.V.O. Adetunji and O.T. Salawu (2010) Efficacy of Ethanolic Leaf Extracts of Carica papaya and Terminalia catappa as Molluscicidesagainst the Snail Intermediate Hosts of Schistosomiasis. International Journal of Medicinal Plant Research .Vol. 4(22) :2348-2352.

18.Adetunji, V.O. and Jinru Chen (2010) Effect of temperature and modified Vacuum Packaging on Microbial Quality of Wara a West African Soft Cheese. Research Journal of Microbiology. ISSN 1816-4935/DOI:10.3923/jm.2011.

19. Adetunji, V.O. and Olaoye O.O. (2010) Partial characterization of bacteriocin produced by Bacillus species isolated from common food products in South Western Nigeria. Pakistan Journal of nutrition. 10 (4): 378-382, 2011

20.Adeyemo, O.K , Adedeji O.B; Adetunji..V.O; Akomolafe. O.T . 2010. Gross and histological changes in the organs of an ascitic Clarias gariepinus. Africa Journal of Animal and Biomedical Sciences 5 (3): 79-87.Uganda

21.Adetunji, V.O. and Ishola T.O. (2011)Enumeration of Listeria and Enteric bacteria of public health Significance on meat tables before and after sales of meat in Ibadan Municipal Abattoir, Nigeria. Pakistan Journal of Nutrition 10 (3): 224-228. [download]