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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

IRSJ Research fellow embarks on historic ‘voyage’
2017-12-11

Description: Grider read more Tags: Prof John Grider, Foreign Voyage, Pacific Labour Identity, IRSJ, Institute for Reconciliation and Social Justice, Institute for Reconciliation and Social Justice (IRSJ),   

Prof John T Grider, making the maritime past alive again in the minds
of a new generation.
Photo: Eugene Seegers


 

Prof John Grider, Associate Professor of History at the University of Wisconsin-La Crosse in the USA and a Research Fellow in the Institute for Reconciliation and Social Justice (IRSJ) at the University of the Free State (UFS), has launched a book based on more than a decade of research into the Pacific maritime labour identity. His monograph, entitled A Foreign Voyage—Pacific Labour Identity, 1840-1890, delves into the history of the maritime industry, not only as a vehicle for expanding the processes of capitalism, colonialism, industrialisation, and globalisation, but is also exploring the impact of this industry on the shifts in gender, race, class, and technology.

As a student in Colorado, a homesick Grider tried to connect with his coastal roots via research. “Before I started to explore the maritime history, I thought of the ocean as a type of boundary that you sometimes need to cross. The truth is that globalisation happens on ships.” Prof Grider’s passion for Pacific maritime labour identity generates colourful discussions on the topic. Masculine sailors confronted by technological de-skilling that corroded away their identity, come to life as he talks and writes. “I try to show students that history is more than a story about the powerful few, and that everyday people, who may seem powerless, play a major role in shaping the past and the future.”

This monograph is based on first-hand, previously unpublished accounts of daily life at sea, often from ships’ logs and the diaries kept by the men who sailed them. The culmination of much painstaking research and supporting evidence, this book investigates the complex interplay between gender, class, and race sourced from the narratives of men who found themselves working in the transforming Pacific maritime industry during the mid-nineteenth century. A powerful lesson to be learnt from this fascinating segment of maritime labour history, is adaptability, “especially in today’s rapidly changing labour world”, Prof Grider says. 

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