For years, discussions about food safety in Africa and beyond have revolved around regulation, compliance, and production standards. But for microbiologist and food safety professional Mary Tomi Olorunkosebi, the issue runs deeper. “Food safety is a human right. When we get it wrong, the consequences are not just economic losses—they are illnesses, hospitalisations, and, in some cases, lives cut short,” she said in a recent conversation.

Her words reflect a career committed to solving problems that sit at the intersection of science, health, and policy.

Her journey has been marked by hands-on problem-solving. At a pharmaceutical company here in Nigeria, she led rigorous microbiological testing that reduced defective batches—a turnaround that stakeholders in Nigeria’s pharmaceutical sector described as “a quiet revolution in quality assurance.” She later improved contamination control in production facilities, a step that cut incidents of bioburden.

In the food industry, her work in regulatory compliance proved transformative. She successfully guided the company through plant and product registrations with NAFDAC, ensuring full approval for production.

In her words, “When facilities and products earn certification, what people see is a licence. What I see is protection for families that will consume those products.”

Her ability to translate scientific expertise into regulatory readiness is one reason stakeholders commend her approach. According to colleagues, she has become the go-to professional for knotty compliance challenges. Whether preparing documentation for inspections or designing HACCP and GMP protocols, Olorunkosebi’s interventions often lead to measurable improvements in standards.

She supports quality and safety by conducting inspections, implementing process improvements, and upholding standards across production units. Insiders note that her cross-functional collaboration is strengthening compliance and helping to prevent risks before they reach the consumer. Yet her work extends far beyond the corporate world.

Her academic research further reinforces her impact. She has studied probiotic strains of lactic acid bacteria, explored the biodegradation of pharmaceutical effluents, and analysed microbial risks in food systems.

Her findings have been shared at conferences, drawing praise for their practical applications to both food safety and environmental health.

In addition, Olorunkosebi has shown a passion for training and mentorship. Through her roles as a teaching assistant and tutor, she has guided more than a hundred students in mastering microbiology techniques and laboratory practices. Many of her mentees now credit their laboratory confidence to her patient instruction and structured teaching.

Her holistic contributions have drawn commendations from both industry leaders and academic stakeholders. They agree that she has managed to weave together science, compliance, community service, and research into a career that sets her apart as more than a specialist—she is a changemaker.

Asked about her long-term vision, Olorunkosebi explained, “The future of food safety lies in building systems that anticipate risks rather than react to them. My goal is to help shape those systems—locally, nationally, and globally.”