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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

Powering the future
2014-07-10

 

Kovsie students with the organisers at the African Student Energy Summit.

Photo: Rirhandzu Marivate

Powering the future. This was the theme of the first-ever African Student Energy Summit. The event was recently hosted by the Cape Peninsula University of Technology (CPUT) in Cape Town. The summit was even more unique, since it was part of a global series of Energy Summits held simultaneously in the US, Mexico and Scotland.

Sixteen Kovsies, together with students from across South Africa, Nigeria, Ghana, Zimbabwe, DRC, Zambia and Cameroon united at this event. The main goal: to confront pressing energy challenges faced by our continent. During roundtable discussions, these students brainstormed issues such as the accessibility of energy, as well as driving efficiency and sustainability through the use of green energy.

Antoinette Nel, a Kovsie honours student in Spatial Planning, said, “Interacting with different speakers and students on green energy possibilities enhanced my understanding of how much can be done to change the current status quo on energy in Africa.”

During a student parliamentary session, the participants had to come up with recommendations on sustainable energy. These will be compiled in a document and sent to the African Union (AU).

“My biggest highlight was understanding the need for energy by most Africans, not for lighting or industrialised activities but rather for daily livelihood, for basic rights and services such as cooking, health and education,” said Justman Suh, also an honours student in Spatial Planning at Kovsies.

“We are creating spaces to challenge Afro-pessimism in Africa through these platforms,” Dr Elizabeth Rasekoala, Chairperson of Green Shift Africa, said during the summit. 



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