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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

Graduates challenged to fulfil their leadership obligations
2017-12-08


 Description: 2017 December summer graduation Tags: 2017 December summer graduation 

Photo: Johan Roux

Graduation videos

Photo galleries
6 December: Morning
6 December: Afternoon
7 December: Morning
7 December: Afternoon

A total number of 1 226 qualifications, including diplomas, certificates, and degrees, were conferred during the two days of the 2017 End-of-Year Graduation Ceremony which took place on the Bloemfontein Campus of the University of the Free State (UFS). Forty doctorates and 109 master’s degrees were awarded. Most doctorates (19) were awarded in the Faculty of Natural and Agricultural Sciences which  also conferred the biggest number of master’s degrees (27).

Celebrating excellence
Some of the highlights at this year’s graduation ceremonies were when the university honoured Prof Paul Holloway and Marius Botha with honorary doctorates and Joyene Isaacs with the Chancellor’s Medal. 

Isaacs, Head of the Department of Agriculture in the Western Cape, who was nominated by the Centre for Sustainable Agriculture in the Faculty of Natural and Agricultural Sciences for the Chancellor’s Medal, said: “Agriculture is one of those areas people take for granted. With this medal, agriculture can come to the fore. Agriculture is placed in the spotlight and it is important for this country, but also globally, because we look after the food supply. For me agriculture has been a sustainable livelihood but also a career. Everything about agriculture excites me! I hope that through this award I can take agriculture to the next level.”

Prof Holloway, internationally acclaimed expert in the science and technology of surfaces, thin films, and nanoparticles, who received the Honorary Doctorate in Science degree, said: “This award recognises the efforts we (the UFS and the University of Florida in the US) have jointly developed. We introduced the UFS to phosphors and today it (the UFS) has world-wide recognition expertise in this field. We also learnt from them. They brought us technology we did not have before. It was a mutual growth technique and we all benefit from that. If you work together you can achieve remarkable things.”

“It is the greatest honour of my life. I’ve been associated with the UFS for 17 years in the capacity of moderator, examiner and sometimes lecturer.” These were the words of Botha, author and expert in the financial planning circles of South Africa who was nominated for an honorary degree by the School of Financial Planning Law.

Botha told graduates that a qualification in the financial planning field would give you many opportunities. “If you enter almost any financial services organisation in South Africa, you will find senior people there that completed the postgraduate diploma in Financial Planning Law at the UFS,” he said.

During a luncheon that was hosted by Prof Francis Petersen, the UFS Rector and Vice-Chancellor, in honour of these esteemed graduates, he thanked them for the contribution they had made, not only for the UFS, but for advancing science, technology, and the better of society. “The Honorary degrees and Chancellor’s Medal are the highest accolades and recognition that the university can bestow on individuals who have excelled in science or scholarship or have contributed to service to this country. You are exemplary individuals and you make the UFS, our country and the world proud,” he said. 

 Description: 2017 Summer Graduation read more Tags: 2017 Summer Graduation read more 

Photo: Johan Roux

Inspiration for the future
Likeleli Monyamane, a UFS Council member, addressed graduates during the morning ceremony on 6 December 2017. She motivated graduates to walk tall and learn to serve our country. “Finding your voice comes with a responsibility to speak for those who do not have a voice,” Monyamane said. 

Leah Molatseli, who launched South Africa’s first legal e-commerce website, Lenoma Legal, was the guest speaker at the afternoon session on 6 December 2017. “You are going to start afresh. It is going to feel like you know absolutely nothing and it’s ok. You need to make peace with that in order for you to learn. 

“A lot of young people expect instant success when they enter a job. I am 29 and have had three jobs, two side jobs and numerous certificates. But I decided to create my own future. That is what I did with Lenoma Legal. Some people are meant to be ordinary and some extraordinary,” said this young entrepreneur and Kovsie Alumnus.

On the second day of the graduation ceremonies Dr Imtiaz Sooliman, founder and Director of the Gift of the Givers Foundation, challenged the newly graduated alumni to be carriers of hope for Africa. “We need people of skill, spirituality and heart,” he said. 

“How do you want others to believe in you if you don’t believe in yourself? We South Africans, we can make things happen. Believe in yourself,” he said. 

“The best science you can do is for others. The moment you achieve that, you mean something to someone,” he said. 

Prior to dissolving the congregations, Dr Khotso Mokhele, the Chancellor of the UFS, said: “It has taken hard work, commitment, dedication, to walk across the stage. You deserve all of that.” 

Interesting facts of the graduation
Among the graduates at these ceremonies was former Miss World 2014, Rolene Strauss. She received a Bachelor of Medicine and Bachelor of Surgery Degree. 

The Faculty of Natural and Agricultural Sciences is also very proud of the first group of BAgric students who graduated on the Agricultural College Programme. The eight agriculture students all received the Bachelor of Agriculture degree, majoring in Agricultural Management.

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