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02 February 2022 | Story Leonie Bolleurs | Photo Leonie Bolleurs
Chané Enslin, master’s student in the UFS Centre for Environmental Management (CEM); Stephanie Graumnitz, Institute of Hydrobiology at the Technical University Dresden (TUD); Dr Dirk Jungmann, Head of Ecotoxicology and Biomonitoring in the Institute of Hydrobiology at TUD; Sihle Mlonyeni, master’s student in the Faculty of Applied Science at the Cape Peninsula Technical University; Dr Marinda Avenant, Senior Lecturer in the CEM at the UFS; Akani Baloyi, master’s student in the UFS Disaster Management Training and Education Centre for Africa; and Sphindile Dlamini, master’s student in the Department of Zoology and Entomology on the UFS Qwaqwa Campus.


The Centre for Environmental Management (CEM) at the University of the Free State (UFS), in collaboration with Dr Dirk Jungmann from the Technical University Dresden, recently presented a virtual summer school on Blackboard, titled: Monitoring of surface water quality: General framework, tools and implementing disaster management aspects in urban areas. 

The international group of 30 persons who attended the summer school mostly comprised postgraduate students and employees from, among others, the UFS and other tertiary institutions such as the Technical University Dresden (TUD), the Cape Peninsula University of Technology (CPUT), UNISA, the University of the Western Cape, Stellenbosch University, the University of Lesotho, and the University of Zimbabwe. Members of the Council for Scientific and Industrial Research also attended the summer school.

Experts present

Dr Marinda Avenant, Senior Lecturer in the CEM, believes the summer school provides students with a wonderful opportunity to be exposed to a topic, such as aquatic biomonitoring, over and above their normal postgraduate studies. “The presenters are all experts in their field and come from a range of disciplines (from hydrology and chemistry to the social aspects of water), as well as from different countries and perspectives,” she adds. 

Some interesting topics covered during the summer school included a panel discussion on water management challenges in Southern Africa. Head of CEM, Prof Paul Oberholser, participated in this live discourse. In 2021, he won the NSTF-Water Research Commission (WRC) Award for his contribution to water resource management in SA over the past five years.

Also contributing a perspective on surface water quality was affiliated professor in CEM, Prof Anthony Turton, who delivered the keynote address on Managing surface water quality as an element of disaster management in urban areas.

Dr Alice Ncube from the UFS Disaster Management Training and Education Centre (DiMTEC) presented on women and disasters (including a case study on a stokvel in Botshabelo), and Dr Inga Jacobs-Mata from the International Water Management Institute (IWMI) provided a social perspective on the water resources sector. 

Students excel 

Five master’s students representing the UFS, the Technical University Dresden (TUD), as well as the Cape Peninsula University of Technology (CPUT), assisted with the organisation of the summer school. The Volkswagen Foundation in Germany, which funded a first summer school in 2019, provided funding that was used to appoint the five students.

According to Dr Avenant, they made provision for the appointment of these students in their project proposal to the Volkswagen Foundation. “The students played a key role in the planning of the virtual summer school; they specially came up with ideas to make the virtual sessions more interesting,” she says.

Among others, they managed the technical aspects of the sessions, introduced the speakers, arranged social activities for the virtual platform, and they produced podcasts. The podcasts of the speakers were distributed to the participants over the extent of two months, in order to learn more about the presenters. 

“We were really impressed with the work of the students, who are all from the natural sciences,” says Dr Avenant.

News Archive

UFS researchers are producing various flavour and fragrance compounds
2015-05-27

 

The minty-fresh smell after brushing your teeth, the buttery flavour on your popcorn and your vanilla-scented candles - these are mostly flavour and fragrance compounds produced synthetically in a laboratory and the result of many decades of research.

This research, in the end, is what will be important to reproduce these fragrances synthetically for use in the food and cosmetic industries.

Prof Martie Smit, Academic Head of the Department of Microbial, Biochemical and Food Biotechnology at the UFS, and her colleague Dr Dirk Opperman, currently have a team of postgraduate students working on the production of various flavour and fragrance compounds from cheap and abundantly available natural raw materials. 

Prof Smit explains that most of the flavours and fragrances that we smell every day, originally come from natural compounds produced mainly by plants.

“However, because these compounds are often produced in very low concentrations by plants, many of these compounds are today replaced with synthetically-manufactured versions. In recent times, there is an increasing negative view among consumers of such synthetic flavour and fragrance compounds.”

On the other hand, aroma chemicals produced by biotechnological methods, are defined as natural according to European Union and Food and Drug Administration (USA) legal definitions, provided that the raw materials used are of natural origin.  Additionally, the environmental impact and carbon footprint associated with biotech-produced aroma chemicals are often also smaller than those associated with synthetically-produced compounds or those extracted by traditional methods from agricultural sources.

During the last four years, the team investigated processes for rose fragrance, vanilla flavour, mint and spearmint flavours, as well as butter flavour. They are greatly encouraged by the fact that one of these processes is currently being commercialised by a small South African natural aroma chemicals company. Their research is funded by the Department of Science and Technology and the National Research Foundation through the South African Biocatalysis Initiative, the DST-NRF Centre of Excellence in Catalysis and the Technology Innovation Agency, while the UFS has also made a significant investment in this research.

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