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23 August 2024 | Story André Damons | Photo Supplied
Thandokuhle Gama, Dr Glen Tylor and Anele Mthembu
Winners: Thandokuhle Gama (left) and Anele Mthembu (right), who were honoured with the DSI-Esther Mahlangu Master's Fellowship at the 2024 SAWiSA, with Dr Glen Taylor, Senior Director: Directorate Research Development (DRD), UFS.

Two postgraduate students from the University of the Free State (UFS) were honoured at this year’s Women in Science Awards (SAWiSA) hosted by the Department of Science and Innovation (DSI).

Thandokuhle Gama, a Master of Medical Science student with specialisation in Pharmacology, and Anele Mthembu, who is working on her master’s degree in Disaster Management in the Disaster Management Training and Education Centre for Africa (DIMTEC), are both recipients of the DSI-Esther Mahlangu Master's Fellowships.

This fellowship is awarded to women scientists and researchers who are pursuing their master’s or doctoral studies and already hold scholarships from the National Research Foundation or other DSI agencies. The fellowships for Gama and Mthembu are worth R75 000 each and can be used towards their tuition fees or to enhance academic programmes by covering the costs of attending conferences or specialised research materials and equipment required to complete their degrees.

Honouring Dr Esther Mahlangu

The prestigious 2024 SAWiSA, which honour the exceptional contributions of women to science, technology, engineering, mathematics and innovation (STEMI) in South Africa, took place on 15 August 2024 in Mbombela. The theme was “Transition towards an Innovation Economy: The Role of Women Leaders in STEM”.

This year, the awards honoured world-renowned artist, Dr Esther Mahlangu, by renaming this year's master's and doctoral fellowships the DSI-Esther Mahlangu Fellowships.

“I feel honoured and grateful for the recognition, although it's been difficult to process what it actually means. It has been an overwhelming experience. It came as a surprise, because when I applied, I was not sure what to expect because these are national awards with many other applicants,” says Gama.

She was nominated by Innocensia Mangoato, lecturer in the UFS Department of Pharmacology and a previous winner at the awards. Gama is doing research on medicinal plants that are used in traditional medicine to treat diabetes.

“Winning this award means that my work thus far is being recognised. It is all through God’s grace. I'm also grateful to everyone who has contributed towards my journey: my family, teachers, mentors and sponsors, and everyone else. It will allow me to continue to advance research in the field of diabetes treatment using traditional medicines or medicinal plants.”

Bettering lives

Mthembu, who was nominated by her mentor, Dr Tlou Daisy Raphela-Masuku, a lecturer at DIMTEC, says it is a fantastic feeling winning this award. “Before the awards, Dr Raphela-Masuku and I dreamt I could win the SAWiSA. But before then, I was surprised and grateful for being acknowledged by DSI as a finalist; I focused on being a DSI finalist, and that winning would be a bonus,” she says.

She continues: “It means a lot to me to win the DSI Master’s Fellowship, as it is a testimony of God’s grace in my life. It is the destiny for helpers God has placed in my life, including my mentor, supervisor, and the DIMTEC postgraduate school. We all won!”

Mthembu is working her master’s thesis on the integration of risk-informed development (RID) and nature-based solutions (NbS) into sustainable human settlements in eThekwini Municipality, KwaZulu-Natal.

“The overarching aim is to evaluate the integration of both these concepts into human settlements’ strategic planning to offer eThekwini Municipality innovative and ecosystem-based approaches to achieving sustainable and resilient human settlements and achieving Sustainable Development Goal (SDG) 11 on building resilient cities.

“I hope to publish my findings and contextualise the enabling environments for RID (EE4RID) Framework in eThekwini Municipality so they can make risk-informed decisions on development and human settlements to achieve SDG 11,” explains Mthembu.

Gama says the aim with her research is to determine if these medicinal plants can treat diabetes by stimulating stem cells to differentiate and become insulin-producing cells. She hopes that through this research diabetes treatment can advance from a level where it is being continuously managed, to a level where we can cure the disease.

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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