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

Exciting open day and Albert Einstein program at Boyden Observatory

2005-05-06

National Science Week, which will be held from 7-14 May 2005, is an annual country-wide celebration of science, led by the Department of Science and Technology. The department selected a proposal by the Boyden Science Centre to coordinate a week of activities in the Bloemfontein area as one of the many projects in the country.

The project for Bloemfontein and surrounding areas will be delivered though a collaboration between the National Museum in Bloemfontein and the University of the Free State (UFS), including the Research Institute for Education Planning, the Department of Physics and other departments in the Faculty of Natural and Agricultural Sciences.

The purpose of National Science Week is:

to create awareness of the important role that science play in people’s daily lives;
to encourage our youth to consider studying and improving their performance in mathematics and science; and
to attract more of our youth into science, engineering and technology (SET) careers.

World Year of Physics and Albert Einstein Program at Boyden Observatory

The International Union of Pure and Applied Physics (IUPAP) declared the year 2005 as the World Year of Physics (WYP). In recognition of this declaration, the great contribution of Physics to the development of technology, and its importance in our everyday lives will be featured strongly during the National Science Week 2005.

On Saturday 7 May 2005 there will be a public programme at Boyden Observatory from 15:30 as a contribution to the World Year of Physics. The programme will be presented in collaboration with the Bloemfontein branch of the Astronomical Society of Southern Africa and will include short presentations on astronomy, space exploration and the sun.

The main presentation will be at 19:00 the evening on the life and work of Albert Einstein. The programme will also include observing sessions through telescopes of objects like the sun, Jupiter and Saturn. There will also be an exhibit on Albert Einstein. Attendance is free but booking is required. For bookings, phone 051-4012561.

Public lecture programme:

Next week the following exciting public lectures will be presented as part of the Science Week activities:

Monday 9 May 2005

National Museum:

A discussion on Apocalypse Then: the greatest mass extinction of all time. The lecture will be presented by Dr Jennifer Botha, Paleontologist at the National Museum.
Bookings: 051-4479609 (entrance is free).

UFS campus:

All lectures at Kine 2, Medical Faculty, UFS campus. Follow directions from the DF Malherbe Road entrance.
Bookings: 051-4012561 (entrance is free).

Tuesday 10 May 2005:

A discussion on the Tsunami disaster of 26 December 2004 at 19:30 (UFS campus, Kine 2 Medical Faculty).

Wednesday 11 May 2005:

A discussion on Is there life out there? at 19:30 (UFS campus, Kine 2 Medical Faculty).

Friday 13 May 2005:

A discussion on Hunting Black Holes at 19:30 (UFS campus, Kine 2 Medical Faculty). The lecture will be presented by Dr Phil Charles, Director: South African Astronomical Observatory.

Science awareness day at the National museum

The science week will be concluded on Saturday 14 May 2005 with a special Science Awareness Day at the National Museum, Aliwal Street, Bloemfontein.

The excellent exhibits at the museum will be supplemented with activities, career information and video shows. The duration of the programme will be from 10:00-16:00. For enquiries, please call 051-4479609.

Issued by:  Lacea Loader
   Media Representative
   Tel: (051) 401-2584
   Cell: 083 645 2454
   E-mail: loaderl.stg@mail.uovs.ac.za

6 May 2005

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