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

UFS medical students reach out to the community

2011-04-16

The smiles on the children at Beyang Bana Pele Creche in Mangaung were blindingly bright, after their new classrooms and playground were unveiled on Friday 15 April. The creche was renovated by a group of third-year medical students from the UFS.
Photo: Earl Coetzee

A group of third-year medical students from the University of the Free State was responsible for many smiling little faces when they unveiled a entirely renovated crèche to its little students on Friday, 15 April.

Reinhardt Erasmus, Fathima Vawda, Veneshree Govender, Antoi Roets, Riaan Calitz, Motlalepula Mabizela, Tertius Potgieter and Chanel van der Westhuizen were the students responsible for the massive renovation work that went into the Beyang Bana Pele Creché in Mangaung.

The students tackled the project as part of a community service project and ensured that the 30 children who attend the crèche can look forward to coming to a safe healthy environment every day.

According to Riaan Calitz, they started the project at the beginning of the year by doing a needs analysis and talking to the children’s parents and teachers. They also involved the aid of an architect and quantity surveyor to calculate the needs of the crèche.

Next, they had to search for sponsors for their work, and struck it lucky when the Windmill Casino agreed to donate R100 000 to their project. They also managed to raise a further R5 000 as well as approximately R50 000 in goods and services donated by various other companies.

This money was enough to improve the safety at the crèche, install safe gas equipment in the kitchen, improve the insulation to ensure a warm winter, install new playground equipment and host several health and safety workshops.

“It took a lot of late nights and early mornings,” Calitz said. “Some of us also had to return from our holiday early, but it was worth it.”

He says the gratitude from the school’s children and teachers, as well as community members, who would stop and thank them for their help while they were busy working, makes it all worthwhile.

The students plan to stay involved with the crèche and say the renovation plan was drafted in such a way that when they move along, another group can simply pick up from their work with ease.

Mrs Sarah Mothoana, the crèche matron, thanked the students as well as everyone who assisted them in “creating a wonderful, safe and healthy environment for the children.”

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