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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

The silent struggles of those with invisible disabilities
2016-12-13

Description: Dr Magteld Smith, invisible disabilities Tags: Dr Magteld Smith, invisible disabilities 

Dr Magteld Smith, researcher and deaf awareness
activist, from the Department of Otorhinolaryngology
at the UFS.

December is International Disability Awareness Month. Despite equality before the law and some improvements in societal attitudes, people with disabilities are still disadvantaged in many aspects of their lives. They are more likely to be the victims of crime, sexual abuse, are more likely to earn a low income or be unemployed, and less likely to gain qualifications than people without disabilities.

Demystifying disabilities is crucial

Dr Magteld Smith, a researcher at the University of the Free State (UFS) School of Medicine’s Department of Otorhinolaryngology, says that often people think the term “disability” only refers to people using a wheelchair, etc. However, this is a misperception because some individuals have visible disabilities, which can be seen, and some have invisible disabilities, which can’t be seen. Others have both visible and invisible disabilities. There is an ongoing debate as to which group has the greatest life struggles. Those with visible disabilities frequently have to explain what they can do, while individuals with invisible disabilities have to make clear what they cannot do.

Invisible disability is an umbrella term that captures a whole spectrum of invisible disabilities and the focus is not to maintain a list of specific conditions and diagnoses that are considered invisible disabilities. Invisible disabilities include debilitating fatigue, pain, cognitive dysfunctions, mental disorders, hearing and eyesight disabilities and conditions that are primarily neurological in nature.

Judging books by their covers
According to Dr Smith, research indicates that people living with invisible disabilities often suffer more strained relationships than those with visible disabilities due to a serious lack of knowledge, doubts and suspicion around their disability status.

Society might also make serious allegations that people with invisible disabilities are “faking it” or believe they are “lazy”, and sometimes think they are using their invisible disability as an “excuse” to receive “special treatment”, while the person has special needs to function.

Giving recognition and praise
“One of the most heartbreaking attitudes towards persons with invisible disabilities is that they very seldom enjoy acknowledgement for their efforts and accomplishments. The media also seldom report on the achievements of persons with invisible disabilities,” says Dr Smith.

Society has to understand that a person with a disability or disabilities is diagnosed by a medical professional involving various medical procedures and tests. It is not for a society to make any diagnosis of another person.

Dr Smith says the best place to start addressing misperceptions is for society to broaden its understanding of the vast, varying world of disabilities and be more sensitive about people with invisible disabilities. They should be acknowledged and given the same recognition as people with visible disabilities.

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