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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 the only university in South Africa with a P-rated history researcher
2016-12-13

Description: Dr Daniel Spence  Tags: Dr Daniel Spence  

Dr Daniel Spence has been earmarked by the NRF
to become a future international leader in his field
of expertise.
Photo: Supplied

The University of the Free State (UFS) is the only university in South Africa with a P-rated History researcher. Dr Daniel Spence, a postdoctoral Research Fellow at the International Studies Group (IGS), and a member of the Vice-Chancellor’s Prestige Scholar’s Programme at the UFS, was last week awarded a National Research Foundation P-rating by the National Research Foundation (NRF). Dr Spence is the first South African historian to achieve this honour.

Leader of the pack
P-ratings are given to young researchers, usually under the age of 35, who have the potential to become leaders in their field. Researchers in this group are recognised by all, or the overwhelming majority of, reviewers as having demonstrated the potential to become future international leaders.

The rating is awarded on the basis of exceptional research performance and output from their doctoral and early postdoctoral research careers.

Other researchers from the UFS who obtained P-ratings in the past, are Prof Lodewyk Kock (1986), Prof Zakkie Pretorius (1989), and Prof Robert Schall (1991).

Extraordinary achievement lauded  
“It is an extraordinary achievement. There are fewer P-ratings, than there are A-ratings,” said Prof Neil Roos, associate professor at the ISG. Prof Roos said the P-rating was seldom awarded to researchers within the field of Humanities.

As a member of the ISG, Dr Spence’s research has flourished under the guidance of Prof Ian Phimister. Much of the success of this group is due to the way it operates as an incubator for high-level research, with scholars collaborating with each other.

In addition to Dr Spence’s magnificent P-rating, the ISG currently has three C1-rated researchers (established researchers with a sustained recent record of productivity in their field) and two Y1-rated researchers (researchers 40 years old or younger, who are recognised by all reviewers as having the potential to establish themselves as future leaders in their fields).

“From the time Dr Spence wrote his doctoral thesis on the colonial history of the Royal Navy, he has expanded his field of expertise so that he can address imperial and global histories of race,” said Prof Roos.

Demonstrated research excellence

Dr Spence secured a postdoctoral Research Fellowship at the UFS to develop an African case study to augment his Asian and Caribbean research thesis into a monograph. In March 2013, Dr Spence won a three-year NRF Postdoctoral Innovation Scholarship, and learned Kiswahili ahead of archival research in Kenya and Tanzania from April to May of that year. He has conducted archival and oral research in Singapore, Malaysia, Hong Kong, Australia, Kenya, Zanzibar, the Cayman Islands, Trinidad, and the UK.

Internationally renowned
Dr Spence is the author of two monographies, the Colonial Naval culture and British imperialism, 1922-67 and A History of the Royal Navy: Empire and Imperialism. He has been invited to present papers and chair panels at over 20 international conferences, workshops and seminars.

The NRF rating system is a benchmarking system through which individuals who exemplify the highest standards of research, as well as those demonstrating strong potential as researchers, are identified by an extensive network of South African and international peer reviewers.

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