Latest News Archive

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

Revolutionising wheat: Developing cultivars that maintain their quality in heat and drought

28 April 2023 | Story Leonie Bolleurs | Photo Supplied

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

Living proof of transformation

2012-07-18

Prof. Pumla Gobodo-Madikizela (middle) facilitated a dialogue with Archbishop Emeritus Desmond Tutu and Prof. Mark Solms on the Transformation in the Solms-Delta Wine Estate.
Photo: Johan Roux
18 July 2012

“We have the capacity to make a success of South Africa. We have incredible people who refuse to leave the country and want to make a difference.” This is according to Archbishop Emeritus Desmond Tutu who was speaking at the University of the Free State (UFS) today.

Dr Tutu took part in a dialogue with Prof. Mark Solms, owner of the Solms-Delta wine estate in Franschhoek.Prof. Solms is also an A-rated scholar and the Head of the Department of Psychology at the University of Cape Town.The theme of the dialogue was “Living Reconciliation: Winds of Change in Franschhoek and Transformation at Solms-Delta Wine Estate”.

Prof. Solms led an initiative to transform the lives of farm workers on the estate through the Wijn-de Caab Trust. This initiative was extended to empower the wider community of farm dwellers when Prof. Solms co-founded the Delta Trust and the Franschhoek Valley Transformation Charter.

The dialogue was the second in the Dialogue between Science and Society series and was facilitated by Prof. Pumla Gobodo-Madikizela, Senior research professor on Trauma, Forgiveness and Reconciliation at the UFS. The Dialogue series aims to inspire new ways of thinking about responsible citizenship. It also highlights the unique and important ways of engaging with the critical issues of social equality, social justice, social transformation and reconciliation in South Africa.This morning Dr Tutu said the work done in the Franschhoek community is proof that people cannot prosper alone if others are also not prospering. “We belong together. Why did it take us so long to realise it? South Africans have the capacity to make South Africa a better place. It is unacceptable that people go hungry and go to school under trees. It is unacceptable that they still have no books in the third term, and that the pass rate is 30%.

“Is this why we struggled, why people died? We want to go to our graves smiling… we will not be allowed peace and stability if we do not attend to the problems.”

Prof. Solms said the miracle of the political transformation did not trickle down to the people. A lot has been done, but much more needs to be done. “It can only be done by us. It is not the government’s responsibility. The way we live as a result of apartheid is that we are a deeply divided society. We must recognise this and do something to change it.”

He encouraged people to think “small”. An individual cannot change the whole country, but the changes in his community are there to see.

Dr Tutu also congratulated the UFS on becoming a truly South African university, recognising the transformation of the past few years.

The dialogue was presented at the Global Leadership Summit that 250 students and academic leaders from 21 international universities are participating in. The summit runs until Friday 20 July 2012.

Back

Economic and Management Sciences

Education

Health Sciences

The Humanities

Law

Natural and Agricultural Sciences

Theology and Religion

Open Distance Learning

Business School

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