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

SA women’s Hockey players give a recount of Hockey World League

2015-07-02

Nicole Walraven and Liné Malan
Photo: Hatsu Mphatsoe

Three of the star players of Kovsies Hockey formed part of the South African Women’s Hockey team, which competed at the Hockey World League (HWL) tournament in Spain.

Hatsu Mphatsoe, student assistant at the Department of Communication and Brand Management, spoke to Nicole Walraven and Liné Malan. Tanya Britz will be returning only at a later stage to South Africa.

As key players in the Kovsies women’s team, Malan and Walraven (along with Britz) have a new wealth of knowledge that could assist the team in their forthcoming USSA tournament. Here are some of the sentiments they had to share:

What was your reaction when you first received the news that you’d be representing the country in Spain?

Liné: “It was a shock to me, I honestly didn’t expect it. At the same time, I was extremely excited to be granted the opportunity to represent my country, and prove my worth to the team.”

Nicole: “I was so excited and felt honoured! To represent my country at such a big tournament is amazing. I was very nervous, but excited.”

How has playing at an international level improved your personal performance and mentality of the game/sport?

Nicole: “Playing at such a high level has helped my hockey immensely. It has helped me read the game better, it has upped my self-confidence, and it has also improved my ability to deal with pressure.”

Liné: “Playing at an international level looks much easier than it is. It is a much faster game, the pressure on the ball is much higher, and the individual skills are on a different level. It has helped me to lift my game, and make decisions much quicker. It has honestly benefitted me as an individual, and I’ve learnt so much from the experience.”

Now that you’ll be going to play at the USSA tournament, what new perspectives do you wish to bring to the team in order to improve its overall performance there?

Nicole: “The importance of teamwork as well as adapting the game plan according to the situation and the opposition. Constant hard work and a never-give-up attitude are vital. One quote that stood out from the tournament is ‘1MT, 1MT’ which stands for ‘1 More Thing, 1 More Time’.

Liné: “Going to USSA, I now have a better understanding of what pressure is, and how to make better decisions. We will still make use of our Kovsies brand of Hockey, which is our passing game, and apply all aspects to the best of our ability.”

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