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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

HIV/AIDS could kill 20% of southern Africa’s farm workers by 2020
2008-09-27

HIV / AIDS is claimed to account for 40% - 50% of infections in the workforce in some labor-intensive industries. This means that every farmer will have to replace up to 50% of his workforce within the next 10 years.

This was said by Mrs Estelle Heideman (pictured) of the Faculty of Natural and Agricultural Science at the University of the Free State (UFS) at the launch of a DVD about a project to equip farm workers with knowledge and skills regarding HIV / AIDS.

Mrs Heideman was quoting the research findings of Agrimark Consultant, Johan Willemse, and added that farm workers, because of low literacy levels, remoteness of the areas in which they live and the distances to health care facilities, are often forgotten when it comes to HIV/AIDS prevention and care programmes.

This weekend Mrs Heideman leaves for New York City to take up a scholarship awarded to her by the University of Columbia and the University of California, Los Angeles (UCLA) to participate in the M-A-C AIDS Sponsored Leadership Programme.

The leadership Initiative provides a structured support program to enable participants to exchange best practices in the approach to HIV prevention that can be adapted to local circumstances. At the conclusion of the program the Leadership Initiative will, amongst other benefits, provide funds for Fellows to carry out their prevention program in South Africa.

Such a program was already carried out from February to May this year as part of the Lengau Agri Centre’s Farm Project in collaboration with the Chief Directorate Community Service at the UFS on the farms Slangfontein, Dwarsrivier and Pypersfontein in the Philippolis district.

According to Mrs Heideman, who is the co-coordinator of the project, the aim of this project was to equip farm workers with knowledge and skills regarding HIV/AIDS so that they can take control of their lives and make quality decisions.

“A major advantage of working with farm workers is that the whole family is included in the session and this ensures that all generations get the same message”, she said.

At the end the feedback from the farm workers about the programme was positive. “Many said they had tested for HIV and will continue to do so to ensure that they would be around to see their children grow up”, said Mrs Heideman.

Copies of the DVD can be obtained from Estelle Heideman (0828211230) or Tarryn Nell (0832573843).

Media Release
Issued by: Mangaliso Radebe
Assistant Director: Media Liaison
Tel: 051 401 2828
Cell: 078 460 3320
E-mail: radebemt.stg@ufs.ac.za  
26 September 2008


 

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