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12 December 2024 | Story Lacea Loader | Photo Supplied
Dr Cias Tsotsetsi
Dr Cias Tsotetsi, newly appointed Campus Vice-Principal: Academic and Research on the UFS Qwaqwa Campus.

The University of the Free State (UFS) is pleased to announce the appointment of Dr Cias Tsotetsi as the Campus Vice-Principal: Academic and Research on the UFS Qwaqwa Campus as from 1 January 2025.

He is currently Senior Lecturer and Assistant Dean in the Faculty of Education on the UFS Qwaqwa Campus. He holds the following qualifications: BEd(Hons), Postgraduate Diploma in Education, Magister Educationis with specialisation in Policy Studies and Governance in Education, and PhD with specialisation in Philosophy and Policy Studies in Education – all from the UFS.

Dr Tsotetsi operated in the school environment for about 24 years before joining this university in 2010. Since then, he has taught several modules in the Faculty of Education and published several co-authored research articles as well as conference papers on community engagement, teacher development, and participatory action research methodologies, among others. He is also well versed in supervising postgraduate students.

He has received awards from both the university’s Scholarship of Teaching and Learning and the Research committees for his research and academic scholastic performance. He is a member of various committees, such as the Faculty of Education Academic Advisory Board and the Committee for Title Registration and has been participating in partnerships and in NRF-funded projects with peers from universities such as the University of KwaZulu-Natal, the University of Zululand, the Durban University of Technology, and the University of Venda.

“Dr Tsotetsi has a clear understanding of the current systems and operations on the Qwaqwa Campus and is positioned to drive its development. His experience and initiatives involving staff and postgraduate students are exceptional and inspiring. We look forward to Dr Tsotetsi’s valuable contribution to the UFS Qwaqwa Campus and the institution in his new position,” says Prof Prince Ngobeni, Campus Principal of the Qwaqwa Campus.

“I feel honoured to serve the university – and the Qwaqwa Campus in particular – and look forward to working with the campus and its management to develop the research portfolio,” says Dr Tsotetsi. 

News Archive

Carbon dioxide makes for more aromatic decaffeinated coffee
2017-10-27


 Description: Carbon dioxide makes for more aromatic decaffeinated coffee 1b Tags: Carbon dioxide makes for more aromatic decaffeinated coffee 1b 

The Inorganic Group in the Department of Chemistry
at the UFS is systematically researching the utilisation
of carbon dioxide. From the left, are, Dr Ebrahiem Botha,
Postdoctoral Fellow; Mahlomolo Khasemene, MSc student;
Prof André Roodt; Dr Marietjie Schutte-Smith, Senior Lecturer;
and Mokete Motente, MSc student.
Photo: Charl Devenish

Several industries in South Africa are currently producing hundreds of thousands of tons of carbon dioxide a year, which are released directly into the air. A typical family sedan doing around 10 000 km per year, is annually releasing more than one ton of carbon dioxide into the atmosphere.

The Inorganic Chemistry Research Group in the Department of Chemistry at the University of the Free State (UFS), in collaboration with the University of Zurich in Switzerland, has focused in recent years on using carbon dioxide – which is regarded as a harmful and global warming gas – in a meaningful way. 

According to Prof André Roodt, Head of Inorganic Chemistry at the UFS, the Department of Chemistry has for the past five decades been researching natural products that could be extracted from plants. These products are manufactured by plants through photosynthesis, in other words the utilisation of sunlight and carbon dioxide, nitrogen, and other nutrients from the soil.

Caffeine and chlorophyll 
“The Inorganic group is systematically researching the utilisation of carbon dioxide. Carbon dioxide is absorbed by plants through chlorophyll and used to make interesting and valuable compounds and sugars, which in turn could be used for the production of important new medicines,” says Prof Roodt.

Caffeine, a major energy enhancer, is also manufactured through photosynthesis in plants. It is commonly found in tea and coffee, but also (artificially added) in energy drinks. Because caffeine is a stimulant of the central nervous system and reduces fatigue and drowsiness, some people prefer decaffeinated coffee when enjoying this hot drink late at night. 

Removing caffeine from coffee could be expensive and time-consuming, but also environmentally unfriendly, because it involves the use of harmful and flammable liquids. Some of the Inorganic Group’s research focus areas include the use of carbon dioxide for the extraction of compounds, such as caffeine from plants. 

“Therefore, the research could lead to the availability of more decaffeinated coffee products. Although decaffeinated coffee is currently aromatic, we want to investigate further to ensure better quality flavours,” says Prof Roodt.

Another research aspect the team is focusing on is the use of carbon dioxide to extract chlorophyll from plants which have medicinal properties themselves. Chemical suppliers sell chlorophyll at R3 000 a gram. “In the process of investigating chlorophyll, our group discovered simpler techniques to comfortably extract larger quantities from green vegetables and other plants,” says Prof Roodt.

Medicines
In addition, the Inorganic Research Group is also looking to use carbon dioxide as a building block for more valuable compounds. Some of these compounds will be used in the Inorganic Group’s research focus on radiopharmaceutical products for the identification and possibly even the treatment of diseases such as certain cancers, tuberculosis, and malaria.

 

 

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