Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
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

Researcher at Qwaqwa Campus, Dr Aliza le Roux, selected as SAYAS member
2014-09-12

 

Dr Aliza le Roux

Dr Aliza le Roux, senior lecturer in the Department of Zoology and Entomology on the Qwaqwa Campus of the University of the Free State (UFS), was selected as a member of the 2014 South African Young Academy of Science (SAYAS). Dr Le Roux, a member of the Vice-Chancellor's Prestige Scholars Programme at the UFS, is also a South African National Research Foundation-rated (NRF) scientist (Y2) and the winner of the UFS Vice-Chancellor’s Excellence in Teaching Award in 2013.

She sees her selection to SAYAS as a unique opportunity to help change the face of science in South Africa. Dr Le Roux hopes to use her skills as project leader in social media, as well as her own learning experiences on a rural campus, to inspire especially ecological research in a country so rich in its own natural heritage.

The SAYAS selection committee was impressed by the high level of academic merit and depth of the nominations they received. “Your membership is critical in contributing to many of the vital activities and functioning of SAYAS, and we look forward to your active contributions to the further development and growth of the Young Academy,” said Prof Aldo Stroebel, Chair: SAYAS Selection Committee.

Prof Corli Witthuhn, Vice-Rector: Research at the UFS, said, “Aliza le Roux is an outstanding young scientist on our Qwaqwa Campus. She is not only an outstanding researcher but has also received prizes during the past year for her dedication to teaching. I am very excited about the young researchers on our Qwaqwa Campus with Aliza as one of the leaders, and I am looking forward to what else they can achieve in the next five years.”

In the past decade, Dr Le Roux focused her research on the cognitive and communicative skills of wild mammals in South Africa and Ethiopia. She spent four years as a postdoctoral research fellow at the University of Michigan, leading to ground-breaking research on the cognitive and communicative underpinnings of gelada monkey behaviour. Her current work encompasses an NRF-funded project on paternal care in bat-eared foxes, and experimental research on spatial cognition in wild samango monkeys. She is also involved in discussions with the Endangered Wildlife Trust to research the mitigation of road-kill incidents in South Africa.

Dr Le Roux hopes to combine cognitive ecology with more applied conservation questions in order to raise the profile of behavioural ecology as a discipline. She believes strongly in involving the public with scientific research, and has blogged for Nature Magazine on her adventures as field biologist. Her work has since found its way into numerous websites, magazine and newspaper articles and she has been interviewed on radio and BBC World.

Dr Le Roux will be inaugurated as SAYAS member on 14 October 2014.

Dr Marieka Gryzenhout from the Department of Plant Sciences is also a member of SAYAS.


We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept