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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

UFS study finds initiation does not build character
2015-06-24

Photo: Canva.com

Initiation at schools and school hostels does not build character or loyalty. On the contrary, it is a violation of human dignity and the rights of children.

This is the opinion of researchers from the University of the Free State’s Faculty of Education after an exploratory study of initiation practices in schools.

Although the use of initiation in schools and school hostels is forbidden by the Regulations to Prohibit Initiation Practices in Schools, the study found that this practice is still widely evident in schools. The study also found that, in some cases, teachers and/or principals take part.

In the study, led by Dr Kevin Teise from the Faculty of Education, it was found that physical deeds and even violence and emotional degradation were inflicted under the guise of ‘initiation’.

The study was discussed recently during a panel discussion between the Faculty of Education, the Faculty of Law, and the Institute for Reconciliation and Social Justice.

The ‘initiation activities’ that take place during school hours ranged from carrying senior learners’ bags or doing other favours for them, handing over their food or food money, doing senior learners’ homework, and looking down when they speak to senior learners.

In school hostels, it was found that learners were expected to do humiliating things, and were also subjected to physical demands and even violence. Learners pointed out that they were smeared and beaten, their heads pushed into toilets, they had to bath or shower in cold water, they had to eat strange things, and they were prevented from sleeping.

Dr Teise says initiation practices are a general phenomenon in the schools and school hostels that took part in the investigation. Newcomers were subjected to silly and innocent practices, but also to physically and emotionally degrading, and even dangerous ones, before and after school, and during breaks and sports- and cultural gatherings.

“The study’s findings give every indication that the constitutional principles on which the policy document, Regulations to Prohibit Initiation Practices in Schools, is modelled, are not being put into practice and respected at these schools. Policy documents and school rules are pointless if learners, old pupils, parents, teachers, and the broad community consider initiation an acceptable behaviour that is, ostensibly, an inseparable part of school or hostel tradition and of the maturation and/or team-building processes.”

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