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09 April 2025 | Story Tshepo Tsotetsi | Photo Supplied
EMS PhDs
Dr Shaun Watson, Prof Philippe Burger, Dr Marese Lombard, and Dr Ambrosé Du Plessis.

As the University of the Free State (UFS) continues to celebrate the achievements of its graduates during the April 2025 graduation ceremonies, three academic staff members from the UFS Faculty of Economic and Management Sciences (EMS) are among those marking a significant milestone with the successful completion of their doctoral degrees.

Prof Philippe Burger, Dean of the EMS Faculty, reflected on the significance of the moment and applauded the trio of new EMS PhD graduates: Dr Shaun Watson, Dr Marese Lombard, and Dr Ambrosé Ray du Plessis.

“For the EMS Faculty to have three staff members obtain a PhD on one day is very special,” Prof Burger said. “These colleagues have grown their standing in the scholarly community and are now, with a PhD in the bag, ready to take on the academic world and the world at large. The EMS Faculty places a high premium on our staff holding a PhD, so we strongly encourage those who are not in possession of a PhD to pursue one.”

Prof Burger added that their achievements not only reflect personal dedication and professional growth but also contribute to the University of the Free State’s Vision 130 goal: to have 75% of academic staff holding doctoral degrees by 2034.

The EMS academics who graduated during the April 2025 ceremonies are:

 

Dr Shaun Watson: Understanding markets through restatements

Dr Shaun Watson, a senior lecturer in the UFS School of Accountancy since 2006, earned his PhD in Management Accounting with a thesis titled ‘Market Efficiency and Share Price Reaction Following the Retrospective Restatement of Financial Statements of JSE-Listed Companies’. His study analysed how financial restatements affect market behaviour, providing key insights for policymakers and investors navigating emerging markets.

“For me, it was both a personal challenge and a professional goal,” Dr Watson said. “I’d often wondered if I had what it takes to complete a PhD and, as an academic, I saw it as the pinnacle of our field. My wife was the one who told me to ‘Nike – just do it!’ Her belief in me, along with the quiet support of my family, gave me the push I needed to start, and the strength to keep going.”

To those still considering the journey, Watson offered this advice: “Do it for yourself – because if you don’t, you will never finish. It is a demanding journey that requires sacrifice and perseverance, but the reward of discovering something meaningful is worth every moment.”

 

Dr Marese Lombard: Taxation as a tool for sustainable agriculture

Also from the School of Accountancy, Dr Marese Lombard received her PhD in Taxation. Her research, ‘Taxation as a Method to Promote Sustainable Agriculture in South Africa’, is the first of its kind to offer empirical evidence on how tax provisions could be used to incentivise sustainability in local agriculture.

“I hope to see a conversation regarding policy changes as to how taxation can be used as a positive method to impact sustainability,” Dr Lombard said. “If taxation can be used to further assist our agricultural industry to become more sustainable, it can not only increase our competitive edge but also address the concern of food security.”

Reflecting on her personal growth, she said, “It has taught me that we are more resilient than we think. The challenge of taking on a PhD has made me more open to other ideas and approaches, and more comfortable with criticism – not just in academia, but in life.”

 

Dr Ambrosé Ray du Plessis: Rethinking the political-administrative divide

From the Department of Public Administration and Management, Dr Ambrosé Ray du Plessis earned his PhD in Public Administration and Management. His thesis, ‘The Political-Administrative Dichotomy in Coalition-Led Metropolitan Municipalities: A South African Perspective’, developed a fresh conceptual framework for understanding the tensions and complexities within coalition-led governance, using the City of Johannesburg as a case study.

“For me, academia is a calling, and I believe that a PhD is an essential stepping stone to be successful in academia,” Dr Du Plessis said. “Being the first in my family to do a PhD motivated me to work harder, as I wanted to inspire those who will come after me.”

Balancing full-time lecturing and doctoral research required immense discipline: “I often had to work at night and over weekends to meet my deadlines… but the emotional and intellectual support from my PhD promoter, Prof Liezel Lues, was central to my success.”

Now, Dr Du Plessis hopes to deepen academic discourse on coalition politics: “My research addresses critical gaps and provides fresh insights into the political-administrative discourse as it can be applied to real-world coalition government problems in South Africa… I hope my work can leave a lasting impact – not only within academia but also in practical applications that benefit society.”

 

A testament to resilience and purpose

While their research topics differ vastly, all three describe their PhD journeys as transformative, both professionally and personally. From late nights and weekend writing sessions to intense supervision relationships, each story reflects a deeper commitment to scholarship – and to growing the UFS’s intellectual capital.

News Archive

Mushrooms, from gourmet food for humans to fodder for animals
2016-12-19

Description: Mushroom research photo 2 Tags: Mushroom research photo 2 

From the UFS Department of Microbial Biochemical and
Food Biotechnology are, from left: Prof Bennie Viljoen,
researcher,
MSc student Christie van der Berg,
and PhD student Christopher Rothman
Photo: Anja Aucamp

Mushrooms have so many medicinal applications that humans have a substance in hand to promote long healthy lives. And it is not only humans who benefit from these macrofungi growing mostly in dark spaces.

“The substrate applied for growing the mushrooms can be used as animal fodder. Keeping all the medicinal values intact, these are transferred to feed goats as a supplement to their daily diet,” said Prof Bennie Viljoen, researcher in the Department of Microbial, Biochemical and Food Biotechnology at the UFS.

Curiosity and a humble start
“The entire mushroom project started two years ago as a sideline of curiosity to grow edible gourmet mushrooms for my own consumption. I was also intrigued by a friend who ate these mushrooms in their dried form to support his immune system, claiming he never gets sick. The sideline quickly changed when we discovered the interesting world of mushrooms and postgraduate students became involved.

“Since these humble beginnings we have rapidly expanded with the financial help of the Technology Transfer Office to a small enterprise with zero waste,” said Prof Viljoen. The research group also has many collaborators in the industry with full support from a nutraceutical company, an animal feed company and a mushroom growers’ association.

Prof Viljoen and his team’s mushroom research has various aspects.

Growing the tastiest edible mushrooms possible
“We are growing gourmet mushrooms on agricultural waste under controlled environmental conditions to achieve the tastiest edible mushrooms possible. This group of mushrooms is comprised of the King, Pink, Golden, Grey, Blue and Brown Oysters. Other than the research results we have obtained, this part is mainly governed by the postgraduate students running it as a business with the intention to share in the profit from excess mushrooms because they lack research bursaries. The mushrooms are sold to restaurants and food markets at weekends,” said Prof Viljoen.

Description: Mushroom research photo 1 Tags: Mushroom research photo 1 

Photo: Anja Aucamp

Natural alternative for the treatment of various ailments
“The second entity of research encompasses the growth and application of medicinal mushrooms. Throughout history, mushrooms have been used as a natural alternative for the treatment of various ailments. Nowadays, macrofungi are known to be a source of bioactive compounds of medicinal value. These include prevention or alleviation of heart disease, inhibition of platelet aggregation, reduction of blood glucose levels, reduction of blood cholesterol and the prevention or alleviation of infections caused by bacterial, viral, fungal and parasitic pathogens. All of these properties can be enjoyed by capsulation of liquid concentrates or dried powdered mushrooms, as we recently confirmed by trial efforts which are defined as mushroom nutriceuticals,” he said.

Their research focuses on six different medicinal genera, each with specific medicinal attributes:
1.    Maitake: the most dominant property exhibited by this specific mushroom is the reduction of blood pressure as well as cholesterol. Other medicinal properties include anticancer, antidiabetic and immunomodulating while it may also improve the health of HIV patients.
2.    The Turkey Tail mushroom is known for its activity against various tumours and viruses as well as its antioxidant properties.
3.    Shiitake mushrooms have antioxidant properties and are capable of lowering blood serum cholesterol (BSC). The mushroom produces a water-soluble polysaccharide, lentinan, considered to be responsible for anticancer, antimicrobial and antitumour properties.
4.    The Grey Oyster mushroom has medicinal properties such as anticholesterol, antidiabetic, antimicrobial, antioxidant, antitumour and immunomodulatory properties.
5.    Recently there has been an increased interest in the Lion’s Mane mushroom which contains nerve growth factors (NGF) and may be applied as a possible treatment of Alzheimer’s disease as this compound seems to have the ability to re-grow and rebuild myelin by stimulating neurons.
6.    Reishi mushrooms are considered to be the mushrooms with the most medicinal properties due to their enhancing health effects such as treatment of cancer, as well as increasing longevity, resistance and recovery from diseases.


Description: Mushroom research photo 3 Tags: Mushroom research photo 3


Valuable entity for the agricultural sector
Another research focus is the bio-mushroom application phenome, to break down trees growing as encroaching plants. This research is potentially very valuable for the agricultural sector in the areas where Acacia is an encroaching problem. With this process, waste products are upgraded to a usable state. “It is therefore, possible to convert woody biomass with a low digestibility and limited availability of nutrients into high-quality animal fodder. By carefully selecting the right combination of fungus species to ferment agro-wastes, a whole host of advantages could become inherently part of the substrate. Mushrooms could become a biotechnological tool used to ‘inject’ the substrate that will be fed to animals with nutrition and/or medicine as the need and situation dictates,” said Prof Viljoen.

 

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