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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

UFS policies want to help all students
2005-03-09

The death of Hannes van Rensburg, a first-year student from the JBM Hertzog residence, this past weekend, placed various aspects of student life in the spotlight.  Dr Natie Luyt, Dean:  Student Affairs at the University of the Free State (UFS), and the Student Representative Council (SRC) of the UFS explain which policies are in place to counter these practices.

At all tertiary institutions there are rules and policies to guide students and provide direction for certain behaviour and practices.  The same applies to the University of the Free State (UFS).

“At the beginning of the year the UFS provides every residence committee with a manual to establish a framework for meaningful and orderly relations within and among residences on the campus,” said Dr Natie Luyt.

However, it is one thing to set rules, but it is an impossible task to enforce all aspects thereof.  Policies currently in place include an alcohol policy, a policy on the induction of first years and a policy on banned practices in residence orientation. 

“The alcohol policy was compiled in cooperation with students and their input was constantly asked,” said Dr Luyt.  We also liaise on a continuous basis with residences and senior students to encourage the responsible use of alcohol, especially around activities like intervarsities and Rag. 

In the policy, recognition is given to the right and voluntary and informed choice of every individual to use alcohol on the UFS campus in a responsible way. 

Guidelines for the use of alcohol on campus include among others the following: 

Only authorised points of sale will be permitted on campus.  In this case it is the various league halls in most of the male residences on campus.

Alcohol will only be made available during fixed times and is not permitted in residence rooms.    

All alcohol-related functions are regulated and an application for a temporary alcohol license must be obtained from the Dean:  Student Affairs.     

The UFS obtained a liquor license in March 2004 which must be administered by senior leagues in various residences on campus.   Normal liquor license conditions and the county’s liquor laws apply.  Liquor can only be sold to members of the senior league (or special guests) and also to persons over the age of 18 years.  Liquor may not be used in public (outside the senior league) or on campus.    

The senior leagues may only be open three nights per week and within prescribed times.  No liquor could be used in any other place than the senior league halls.  Senior leagues could buy liquor from club monies generated by themselves. 

The right of senior leagues to serve liquor was suspended by the Rector and Vice-Chancellor the UFS, Prof Frederick Fourie, on Monday 7 March 2005 – pending an investigation of the recent events on campus. 

The policy on banned practices include among others that no swearing and shouting at first-years may take place, no first-year student may be targeted individually, no senior may enter the room of a first-year student without an invitation or permission from that first-year student and no senior under the influence of alcohol may have contact with first-year students. 

The induction of first-year students takes place by means of three functions, namely an information function (the introduction to the various facets and possibilities of the university system), an induction function (the first-year student becomes involved in various campus and residence activities) and a development function (the first-year student is motivated to take charge of his development potential). 

No first-year induction activity may commence before the residence committee’s contracting with the senior students is not completed.  This meeting is attended by the residence head and all senior students.  The induction policy, residence induction policy of first-year students and first-year rules are discussed.

The senior students sign an attendance list to show that he/she was informed about the policies.  A senior who does not sign, may not be involved with any induction session with first-year students.  

No physical contact is allowed during the conclusion of the first-year students’ official induction period.  The induction of first-year students as full members of the residence is a prestige event, presented by the residence committee.  No physical or degrading activities may take place. 

The Dean:  Student Affairs also has a daily meeting with the primarii of all the residences during the induction period.  This helps to monitor the situation and counter any problem behaviour or tendencies.

“Enforced behaviour – where a senior student forces a first-year student to do something against his/her own free wil – is not allowed.  Where there is any sign of this, it is met wortel en tak uitgeroei,” said Dr Luyt.

“In any group of people – whether it is a group of students or people at a workplace – there will always be those who will break the rules or those who would like to see how far they could push it.

The SRC, the UFS management and myself are and will stay committed to make each student’s life on this campus a school of learning and an experience which would be remembered for ever,” said Dr Luyt.

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