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15 April 2025 | Story Anthony Mthembu | Photo Supplied
Kay-leigh van Rooyen
Kay-Leigh van Rooyen, Research Assistant at the University of the Free State (UFS), was one of sixteen individuals selected to participate in the 2024 Abe Bailey Travel Bursary.

As one of only sixteen recipients of the prestigious 2024 Abe Bailey Travel Bursary, Kay-Leigh van Rooyen, Research Assistant at the University of the Free State (UFS), recently returned from a life-changing journey across the United Kingdom. Representing the UFS on this esteemed programme, van Rooyen joined a cohort of emerging South African leaders in a transformative cultural and academic exchange. 

Reflecting on the experience, she described it as “nothing short of amazing.” 

“The experience was so much more than just visiting new places,” she said. “It was about engaging in meaningful conversations, forming lasting relationships, and gaining fresh perspectives on global issues.”

The Abe Bailey Travel Bursary aims to empower young South Africans through leadership development, cross-cultural exchange, and exposure to international dialogue. According to van Rooyen, this initiative was a powerful platform for personal growth, enabling her to see the world – and South Africa - through new lens.

“I learned the power of perspective - how others view our country, and how to understand global challenges from diverse vantage points,” she said. “I also realised that leadership is not about titles, but about influence and empathy.” 

 

A journey through the UK 

The bursary cohort convened in Cape Town on 23 November 2023 before departing for the UK, where they travelled from London to Edinburgh and back. The programme officially concluded on 18 December 2024/3. 

During the tour, the group visited iconic institutions such as the Royal Observatory in Greenwich, the British Library, the Francis Crick Institute, and the Houses of Parliament. For van Rooyen, the highlight was the opportunity to engage with thought leaders and changemakers. 

“One of the most memorable moments was having lunch in a chamber of the House of Lords at the Palace of Westminster with Lord Karan Bilimoria, the founder and chairman of Cobra Beer. The conversation was insightful and inspiring,” she said.  

 

A global stage for the UFS

Van Rooyen emphasised the professional impact of the experience, noting how it shaped her perspective on the role of academia in society. 

“This experience has changed the way I approach my work. I’ve developed a deeper appreciation for the importance of bridging the gap between academia and industry - especially how we can make research more practical and impactful,” she explained. 

She also highlighted the broader benefit for the UFS community. 

“Global engagements like these position the UFS as part of the international conversation. Our students and staff have valuable insights to share,  and we can learn so much from other institutions.” 

Prof Vasu Reddy, Deputy Vice-Chancellor: Research and Internationalisation at the UFS and Chair of the university’s Abe Bailey Travel Bursary selection committee, echoed these sentiments. 

“The Travel Bursary so elegantly aligns with the vision and heart of the UFS - namely, to expose our students to a wider world and its global connections,” he said. 

 

Inspiring the next generation of UFS leaders 

Encouraging fellow UFS staff and students to apply for the bursary, van Rooyen emphasised the personal and professional rewards. 

“It challenges you to think critically, engage meaningfully, and build relationships with people you wouldn’t ordinarily meet,” she said. 

Prof Reddy praised van Rooyen for her achievements and representation of the UFS on a global stage.  

“Her experiences and insights demonstrate that she is an exceptional ambassador – not only as an Abe Bailey alumnus, but also as a symbol of the excellence the UFS strives for. We are extremely proud of Kay-Leigh and wish her well as we look forward to the great things that lie ahead for her.”

 

 

News Archive

Research eradicates bacteria from avocado facility
2017-01-17

 Description: Listeria monocytogenes Tags: Listeria monocytogenes

Listeria monocytogenes as seen under an electron
microscope. The photo was taken with a transmission
electron microscope at the microscopy unit of the UFS.
Bacteriophages (lollipop-like structures) can be seen
next to the bacterial cells.
Photo: Supplied

“The aim of my project was to identify and characterise the contamination problem in an avocado-processing facility and then to find a solution,” said Dr Amy Strydom, postdoctoral fellow in the Department of Microbial Biochemical and Food Biotechnology at the University of the Free State (UFS).

Her PhD, “Control of Listeria monocytogenes in an Avocado-processing Facility”, aimed to identify and characterise the contamination problem in a facility where avocados were processed into guacamole. Dr Strydom completed her MSc in food science in 2009 at Stellenbosch University and this was the catalyst for her starting her PhD in microbiology in 2012 at the UFS. The research was conducted over a period of four years and she graduated in 2016. The research project was funded by the National Research Foundation.

The opportunity to work closely with the food industry further motivated Dr Strydom to conduct her research. The research has made a significant contribution to a food producer (avocado facility) that will sell products that are not contaminated with any pathogens. The public will then buy food that is safe for human consumption.


What is Listeria monocytogenes?

Listeria monocytogenes is a food-borne pathogenic bacterium. When a food product is contaminated with L. monocytogenes, it will not be altered in ways that are obvious to the consumer, such as taste and smell. When ingested, however, it can cause a wide range of illnesses in people with impaired immune systems. “Risk groups include newborn babies, the elderly, and people suffering from diseases that weaken their immune systems,” Dr Strydom said. The processing adjustments based on her findings resulted in decreased numbers of Listeria in the facility.

The bacteria can also survive and grow at refrigeration temperatures, making them dangerous food pathogens, organisms which can cause illnesses [in humans]. Dr Strydom worked closely with the facility and developed an in-house monitoring system by means of which the facility could test their products and the processing environment. She also evaluated bacteriophages as a biological control agent in the processing facility. Bacteriophages are viruses that can only infect specific strains of bacteria. Despite bacteriophage products specifically intended for the use of controlling L. monocytogenes being commercially available in the food industry, Dr Strydom found that only 26% of the L. monocytogenes population in the facility was destroyed by the ListexP100TM product. “I concluded that the genetic diversity of the bacteria in the facility was too high and that the bacteriophages could not be used as a control measure. However, there is much we do not understand about bacteriophages, and with a few adjustments, we might be able to use them in the food industry.”

Microbiological and molecular characterisation of L. monocytogenes

The bacteria were isolated and purified using basic microbiological culturing. Characterisation was done based on specific genes present in the bacterial genome. “I amplified these genes with polymerase chain reaction (PCR), using various primers targeting these specific genes,” Dr Strydom said. Some amplification results were analysed with a subsequent restriction digestion where the genes were cut in specific areas with enzymes to create fragments. The lengths of these fragments can be used to differentiate between strains. “I also compared the whole genomes of some of the bacterial strains.” The bacteriophages were then isolated from waste water samples at the facility using the isolated bacterial strains. “However, I was not able to isolate a bacteriophage that could infect the bacteria in the facility.

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