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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

More grey areas than just black and white in history?
2017-12-15


Description: Abraham Mlombo readmore Tags: Historic, historian, International Studies Group, ISG  

Dr Abraham Mlombo: As a historian, he draws energy
from the people surrounding him.
Photo: Charl Devenish


 

Very few people understand that their actions and views within a territory stem from their roots or history. To enlighten the reading man on the composition of his base and the intricacies of the powers that are at play, is the work of historians.

Dr Abraham Mlombo is one of these historians, stationed within the International Studies Group at the University of the Free State (UFS).

This research group consists of postgraduate researchers, postdoctoral fellows, and academic staff that focus on African history, although they depart from more traditional study methods  a more global perspective. To date, Dr Mlombo's research examined the historical relations between South Africa and Southern Rhodesia. It was a broad study of the political, economic, social, and cultural relations from 1923 to 1953. He plans to continue by truly exploring the connections between South Africa and the region, and how they shaped one another. Dr Mlombo's interests in cross-border history and politics were inspired by his master’s degree in Political Science at Stellenbosch University. He researched his PhD at the UFS.

He draws energy for his work from the people surrounding him, and likes to be part of new experiences with people from different backgrounds. He feels such environments shape the way one works, as well as one’s world view. Dr Mlombo hints that sometimes, and specifically in South Africa, people focus very narrowly on their history and forget that many international links are at play. He sees his work as a historian to help open people's horizons.

Dr Mlombo suggests that future research should include a more critical analysis of how things unfolded during the second half of the 20th century. Writings should include more social- and people-oriented history, because he thinks there are more grey areas than just black and white. Many more interrogations must also follow into the assumptions of historical events and the individuals who played the greatest roles in Southern Africa.

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