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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

Up to 60% of students do not have enough to eat
2013-11-15

 

15 November 2013

A report of the University of the Free State has revealed the shocking statistics that almost two-thirds of the students at the university don’t have enough money to buy food, and suffer from hunger during terms.

The study, conducted internally by the university’s Department of Nutrition and Dietetics, was a response to a growing international concern that students worldwide were not getting enough to eat. While studies were conducted in the USA and Australia, no similar research has been done in South Africa.

“There have been many studies on the impact of poor nutrition on school kids,” says Dr Louise van den Berg, Senior Lecturer in the Department of Nutrition and Dietetics, “but almost no research on university students. South Africa is, overall, a food-insecure country, and the university wanted to establish how widespread this problem is among our students.”

The reasons given by students invariably referred to a lack of money, as many students were also supporting families. Some students admitted they lacked the knowledge to feed themselves properly, some admitted to borrowing money to buy food, and some even admitted to stealing food to survive.

“This research has confirmed something we have suspected for a long time,” Dr van den Berg states.

A number of students disclosed that they were reluctant to resort to the university feeding scheme, as they were ashamed to admit they did not have money to buy food.

This study is the first of its kind in South Africa, and underlines the fact that tertiary students are particularly vulnerable when it comes to food security. Often a student has to juggle their studies with their role as breadwinner.

A tiny ray of hope to students who find themselves as food insecure, is the No Student Hungry Programme that offers a food bursary to qualifying students.

This programme, initially established by Prof Jonathan Jansen, UFS Vice-Chancellor and Rector, and now managed by Grace Jansen and Karen Buys, offers a small allowance of about R30 per day to hungry students with an average academic achievement of 60% and above. This criterion discourages entitlement thinking and builds a strong sense of responsibility on the part of those who benefit from the food bursary.

Melanie, a second-year Geography and Environmental Management student, as well as a single mother, is a beneficiary of the NSH Programme. “This bursary helps me to get a balanced meal every day. It is one less worry for me. I dream of completing my studies so that I can be independent and provide my son with the life he deserves.”

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