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

Migration is a developmental issue - experts
2010-06-01

Pictured from the left, front, are: D. Juma, Mr Williams and Prof. Hussein Solomon (University of Pretoria); back: Prof. Bekker, Prof. Lucius Botes (Dean: Faculty of the Humanities, UFS) and Dr Wa Kabwe-Segatti.
Photo: Stephen Collett


“Migration offers more opportunities for economic growth than constraints. It is an integral part of the processes of globalisation and regional integration.”

This was a view shared by one of the speakers, Dr Monica Juma from the Africa Institute of South Africa, during a panel discussion hosted by the Centre for Africa Studies (CAS) at the University of the Free State (UFS) last week as part of the celebrations of Africa Day on 25 May 2010.

The discussion was premised on the theme, Migration and Africa: From Analysis to Action.

Dr Juma said migrants could be assets for host countries or cities because of their resourcefulness. She said they brought along essential skills that could contribute immensely to the economic development of their host countries or cities.

“Governments are beginning to see migration as a tool for development and working together in developing immigration policies,” concurred another speaker, Mr Vincent Williams from the Institute for Democracy in South Africa (IDASA).

He said, if managed properly, migration could yield positive results. He said effective management of migration should start at local and provincial levels.
And for this to happen, he said, the current immigration laws should be amended as he felt they were no longer relevant, because they were based on what countries wanted to achieve in the past.

“Reform national immigration legislation to encourage permanent settlement and improve service delivery mechanisms and bureaucracy to match population movements,” Dr Aurelia Kazadi Wa Kabwe-Segatti, from the Forced Migration Studies Programme at the University of the Witwatersrand recommended.

However, Mr Williams pointed out that policy convergence was a difficult thing to achieve as migration was a politically sensitive issue. He said decisions that countries made on migration could have a negative or a positive bearing on their relations with one another.

Dr Juma also raised the issue of unskilled migrants which, she said, could be a burden to governments. This was reflected in the current South African situation where foreigners offered cheap labour and thus rendered South Africans who demanded higher salaries unemployable. This was a contributory factor to the xenophobic attacks of 2008. What was essentially a labour problem then manifested itself as a migration problem.

Prof. Simon Bekker from the University of Stellenbosch said South Africa was still losing a significant number of skilled professionals to Europe and North America due to an assumption that spatial mobility led to social or economic mobility.

He also suggested that the government should not restrict internal migration but should address the problem of migration across the borders into South Africa.

Senior Professor at the CAS, Prof. Kwandiwe Kondlo, said while the discussion covered a broad scope, there were some gaps that still needed to be filled in order for an all-inclusive view to prevail. One such gap, he said, was to also accord indigenous traditional institutions of governance space in such deliberations and not base discussions on this issue only on the Western way of thinking.

Africa Day is the day on which Africa observes the creation of the Organisation of African Unity (OAU) on 25 May 1963, to promote the unity and solidarity of African states and act as a collective voice for the African continent; to secure Africa’s long-term economic and political future; and to rid the continent of all remaining forms of colonialism. The OAU was formally replaced by the African Union in July 2002.

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

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