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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

Game farming a lens to analyse challenges facing democratic SA – Dr Kamuti
2017-05-30

 Description: Dr Kamuti Tags: Dr Kamuti

Dr Tariro Kamuti, Postdoctoral Fellow at the Centre
for Africa Studies at the University of the Free State.
Photo: Rulanzen Martin

One of the challenges facing South Africa’s developing game farming policy is the fractured state in the governance of the private game farming sector, says Dr Tariro Kamuti.

Dr Kamuti, a Postdoctoral Research Fellow at the Centre for Africa Studies (CAS) at the University of the Free State (UFS), was presenting a seminar on Wednesday 17 May 2017 under the topic, Private Wildlife Governance in a Context of Radical Uncertainty: Challenges of South Africa’s Developing Game Farming Policy, which takes material from his PhD. He received his PhD from both the Vrije University in Amsterdam and the UFS in 2016.

His presentation explored how the private game industry positions itself in accordance with existing agricultural and environmental regulations. It also investigated the state’s response to the challenge of competing needs over land and wildlife resources which is posed by the gaming sector. “The transformation of the institutional processes mediating governance of the private game farming sector has been a long and enduring arrangement emerging organically over time,” Dr Kamuti said.

Game farming links wildlife and agricultural sectors
“I decided on this topic to highlight that game farming links the wildlife sector (associated with conservation and tourism) and the agricultural sector. Both make use of land whose resources need to be sustainably utilised to meet a broad spectrum of needs for the diverse South African population.

“The continuous skewed ownership of land post-1994 justifies questioning of the role of the state in confronting challenges of social justice and transformation within the economy.”

“Game farming can thus be viewed as a lens through which to study the broad challenges facing a democratic South Africa, and to interrogate the regulatory and policy framework in the agricultural and wildlife sectors at their interface,” Dr Kamuti said.

Challenges facing game farming policies

The state alone does not apply itself to the regulation of private gaming as a sector. “There is no clear direction on the position of private game farming at the interface of environmental and agricultural regulations, hence game farmers take advantage of loopholes in these institutional arrangements to forge ahead,” Dr Kamuti said.

He further went on to say that the state lacked a coherent plan for the South African countryside, “as shown by the outstanding land restitution and labour tenant claims on privately owned land earmarked for wildlife production”.

The South African government was confronted with a context in which the status quo of the prosperity of the middle classes under neoliberal policies was pitted against the urgent need to improve the material well-being of the majority poor.  Unless such issues were addressed, this necessarily undermined democracy as a participatory social force, Dr Kamuti said.

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