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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

Universities can contribute to economic transformation
2010-01-27

At the lecture were, from the left: Prof. Neil Heideman (Acting Dean: Faculty of Natural and Agricultural Sciences), Prof. Hartmut Frank (University of Bayreuth, Germany), Prof. Bianchi and Prof. Jan van der Westhuizen (professor in Chemistry at the UFS).
Photo: Mangaliso Radebe 


Universities have a role to play in economic transformation and industrial development according to Prof. Fabrizio Bianchi, the Rector of the University of Ferrara in Italy.

This was the core message of his lecture on the topic Globalisation, Agriculture and Industrial Development that he delivered at the University of the Free State.

He said after the collapse of the agricultural industry in Italy as a result of the subsidies that the farmers were receiving from the government, the university had to step in.

“This was meant to maintain high prices and maximize the production but in the long run this approach created problems because the farmers were no longer producing high quality products but large quantities in order to receive subsidies,” he said.

“The result was that the government itself had to destroy those poor quality products. This was a completely unreasonable way to manage the economy”.

He said they had to abandon that approach and concentrate on quality because they realized that Italy could not match the prices and the quantity, in terms of production, of countries like China and the USA.

He said “knowledge and human resources” were the key factors that could get them out of that crisis; hence they came up with what he called “the Made in Italy approach”.

“We were working on the idea that food is part of culture and that it is not just simply for refueling the body,” he said.

“One of the fundamental ideas was to come back to the idea that production is the centre of the development process.”

“Quality is a very complex, collective issue,” he said. “You cannot understand development if you do not understand that you have to base it on strong roots”.

This approach resulted in the formation of several companies with specialized niche markets producing high quality products.

His visit to the UFS coincided with that of the 1991 Nobel Laureate in Chemistry, Prof. Richard Ernst from Switzerland, who was also part of the fourth presentation of the Cheese fondue concept.

The main thrust of this concept is that technical advances alone are insufficient for an agreement to be reached on the minimum respect between the various groups and individuals within a society. It proposes that for this to be achieved there has to be a concurrent development of empathy and emotional synergy.

Media Release
Issued by: Mangaliso Radebe
Assistant Director: Media Liaison
Tel: 051 401 2828
Cell: 078 460 3320
E-mail: radebemt@ufs.ac.za  
27 January 2010

 

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