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28 April 2023 | Story Leonie Bolleurs | Photo Supplied
Schae-Lee Olckers’
UFS PhD student and food scientist Schae-Lee Olckers’ research could contribute to a stable supply of good quality wheat and bread, even in the face of climate change.

Follow your passion in order to find your purpose. This is the mantra of food scientist and University of the Free State (UFS) PhD student Schae-Lee Olckers, whose research is set to improve wheat quality by identifying which types of wheat are better able to tolerate stress, and which proteins are most important for producing high-quality bread. 
 
“By grasping this, it is possible to ensure that we continue to have a stable supply of good quality wheat and bread, even in the face of climate change,” says Olckers, who believes wheat is one of the most important food grains in the human diet, and one of the most important staple cereal crops in the world.

Her PhD study, ‘The influence of abiotic stress on gluten protein and baking quality in bread wheat’, under the supervision of Dr Angie van Biljon and Prof Maryke Labuschagne in the Department of Plant Sciences, and Prof Garry Osthoff in the Department of Microbiology and Biochemistry, is investigating how different levels of heat and drought stress – mostly due to climate change – affect the gluten protein composition of high-yield bread wheat.

Olckers is a food scientist at StartWell Foods (Pty) Ltd, a non-profit organisation that produces high-quality extrusion products for feeding schemes around the country. The products help to eliminate stunted growth among children.

Improving wheat breeding programmes
This research could help us find ways to adapt to climate change and continue to produce high-quality wheat and bread for people around the world. – Schae-Lee Olckers

Her research focuses on examining different types of wheat and investigating how proteins are affected by stressors like heat and drought, to understand how these stressors impact the quality of bread. She uses new proteomic methods to look at the different proteins in the wheat flour, to gain a better appreciation of how gluten proteins react to stress.

In this study Olckers is able to see how the proteins change in the various wheat cultivars, helping us to understand how the different types of wheat perform in baking, and how the proteins affect the final product.

She collaborates with the International Maize and Wheat Improvement Center (CIMMYT) in Mexico, that releases new wheat cultivars for developing countries. Their aim is to develop wheat cultivars that maintain their quality in different environments.  To investigate the performance and characteristics of the seeds, both in the field and in the laboratory, CIMMYT did the field trials, quality assessment, and supplied the seeds for high-performance liquid chromatography (HPLC) and proteomics analysis. 

Finding ways to adapt to climate change

She believes that understanding how these stressors impact the production of bread-baking quality in wheat will help scientists gain important insights into how climate change affects our food supply. 

“Taking into consideration the current and projected intensifying heat and water deficit stresses, it is crucial to improve the understanding of these phenomena in order to implement new breeding strategies for sustainable wheat quality. This research could help us find ways to adapt to climate change and continue to produce high-quality wheat and bread for people around the world,” Olckers says. 

News Archive

Academics should strive to work with students towards publishing, says NRF-rated researcher
2017-07-17

Description: Dr Rodwell Makombe Tags: National Research Foundation University of the Free State Qwaqwa Campus Department of English  

Dr Rodwell Makombe, Y-gegradeerde navorser.
Foto: Thabo Kessah


“The National Research Foundation (NRF) is a prestigious research institution and to be recognised by such an institution means that my work is worthwhile. This alone motivates me to do more research.” This is how Dr Rodwell Makombe reflected on his recent recognition as an NRF-rated researcher – one of the few on the Qwaqwa Campus. He is a Senior Lecturer in the Department of English at the University of the Free State’s Qwaqwa Campus.

“This recognition is indeed an important milestone in my research career. It means that my efforts as a researcher are recognised and appreciated. The financial research incentive will enable me to engage in more research, attend conferences, and so forth,” he said.

Comparing research in the Humanities and Sciences

Dr Makombe’s research area is broadly postcolonial African literature, but he is particularly interested in postcolonial literatures and resistance cultures. He is currently working on a book project entitled Visual Cultures of the Afromontane.

When asked what he thought about Natural Sciences being in the lead as far as research is concerned, he said that this is mainly caused by funding opportunities.

“It means that my efforts as a
researcher are recognised and
appreciated.”

“It is easier to access funding for research in the Natural Sciences than for the Humanities. Researchers in the Humanities usually do research without any form of funding. However, there are also differences in the way research is done in the Sciences than in the Humanities. Science researchers tend to work together on different projects, which make it easier for them to have their names on publications, no matter how small their contribution. This is also connected to the issue of funding,” he added. 

He continued: “Since research in the Humanities is largely unfunded, it is difficult for researchers to establish research groups. Another issue is that most academics in the Humanities do not necessarily teach modules within their research interests. Therefore, they tend to be overloaded with work as they have to do research in one area and teach in another area.”

NRF-rating and funding

For Dr Makombe, the solution to this challenge lies in academics in the Humanities working towards publishing with their students. “This way,” he said, “both the students and the academics will get publications that will help them to get NRF-rating and other forms of research funding. Modules in the Humanities need to be aligned to academics’ research interests to avoid mismatches between teaching and research.” 

He previously worked at the University of Fort Hare and the Durban University of Technology and has published several articles in both local and international journals.

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