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20 April 2021 | Story Cornelius Hagenmeier

On 25 May 2021, Africa will celebrate the 58th anniversary of the founding of the Organisation of African Unity (OAU). A central tenet of the organisation, which was the predecessor of the African Union (AU), is African solidarity. This call celebrates the idea and the ideal of African solidarity. As we are preparing for Africa Month 2021, we received the shocking news about the damage to the University of Cape Town’s African Studies collection. The need for African solidarity to mitigate this immense loss has inspired the theme of the 2021 UFS virtual Africa Month celebration, ‘solidarity in knowledge production and recording’.

From the establishment of the OAU and with the later formation of the AU, member states undertook to coordinate and intensify their cooperation and efforts to achieve a better life for the people of Africa.

Africa Day Memorial Lecture

The UFS has a long tradition of commemorating Africa Day and the ideas underpinning it. Every year, diverse events aimed at advancing African unity and solidarity take place during Africa Month –traditionally, the highlight is the Africa Day Memorial Lecture hosted by the University's Centre for Gender and Africa Studies. On 19 May 2021 at 19:00 (SAST), Prof Walter D Mignolo, a guru of decoloniality, will virtually deliver this year’s lecture titled The beauty of the sovereign people: Jean Casimir and the Decolonial History of Haiti, to honour the memory of transatlantic slavery by reflecting on former ambassador, Prof Jean Casimir, who has shifted the geography of reasoning by breaking the code of the standard history of the slave trade, the African diaspora in the Caribbean, and of captive human beings in the plantations. The discussant will be CGAS Extraordinary Professor and Professor of Epistemologies of the Global South at the University of Bayreuth, Prof Sabelo J Ndlovu-Gatsheni.  

As COVID-19 continues to ravage the world, Africans have been fighting against the pandemic in various ways and have achieved considerable success in this regard. Given the economic and social challenges associated with the pandemic, fostering African solidarity and further developing the underpinning philosophy of ubuntu appear to be particularly worthwhile projects.

A virtual celebration of Africa Month

The UFS 2021 Africa Month commemorations will again take a virtual format. It will include a focus on UFS engagement on the continent, partnerships with other African institutions, research excellence, and student success stories.  The UFS invites all members of its community to contribute thought-provoking pieces to this virtual celebration of Africa Month. Selected contributions will be presented on the university's website and social media.

Among other formats, contributions may take the format of

  • recorded performing art performances (e.g., solo music or poetry);
  • virtual visual art presentations;
  • written poetry;
  • songs;
  • short thought/opinion pieces, which can also be published in mainstream media; or
  • topical academic writings.

Please share a brief written proposal explaining your planned contribution by 30 April 2021. The proposal should not exceed 300 words and should be emailed to Cornelius Hagenmeier (hagenmeiercca@ufs.ac.za) or Prof Colin Chasi (ChasiCT@ufs.ac.za).

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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