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DF Malherbe Memorial Lecture

22 April 2025

DF Malherbe Memorial Lecture Invitation

Invitation

DF Malherbe Memorial Lecture

You are cordially invited to the University of the Free State’s (UFS) DF Malherbe Memorial Lecture – Afrikaans 100.

View the invitation

Date: Thursday 15 May 2025

Time: 17:30

Venue: Economic and Management Sciences (EMS) Auditorium, Bloemfontein Campus

The lecture is a celebration of a century of Afrikaans as an official language and will be a showcase of the language’s rich diversity and an intellectual reflection on the history thereof.

The keynote speaker is Prof Joan Hambidge, the rejoinder is delivered by Prof Hein Willemse, and entertainment is provided by musician Frazer Barry, the UFS Department of Drama and Theatre Arts, and the Odeion String Quartet.

Interpreting services will be available.

Prof Joan Hambidge
Poet, novelist, and a public intellectual. She is currently retired and a fellow (senior researcher) at UCT.

Prof Hein Willemse
Former Head of the Department of Afrikaans, University of Pretoria and a leading language activist.

Frazer Barry
Renowned musician, television and radio presenter, rhymer, producer, and entrepreneur.

Enquiries:
Alicia Pienaar: pienaaran1@ufs.ac.za
Register by Monday 5 May 2025.
Click to register

Datum: Donderdag 15 Mei 2025

Tyd: 17:30

Plek: Ekonomiese en Bestuurswetenskappe (EBW)-ouditorium, Bloemfontein-kampus

Die lesing is ’n viering van ’n eeu van Afrikaans as amptelike taal; dit sal ’n vertoonvenster wees van die taal se ryke diversiteit en ’n intellektuele besinning oor die geskiedenis daarvan.

Die hoofspreker is prof Joan Hambidge, repliek word gelewer deur prof Hein Willemse, en vermaak word verskaf deur musikant Frazer Barry, die UFS se Departement Drama en Teaterkuns, en die Odeion Strykkwartet.

Tolkdienste sal beskikbaar wees.

Prof Joan Hambidge
Digter en romanskrywer, openbare intellektueel en afgetrede senior navorser aan die Universiteit van Kaapstad.

Prof Hein Willemse
Voormalige hoof van die Departement Afrikaans, Universiteit van Pretoria en ‘n toonaangewende taalaktivis.

Frazer Barry
Bekende musikant, televisie- en radio-aanbieder, rymelaar, vervaardiger en entrepreneur.

Navrae:
Alicia Pienaar: pienaaran1@ufs.ac.za
RSVP teen Maandag 5 Mei 2025.
Klik hier om te registreer

Letsatsi: Labone 15 Motsheanong 2025

Nako: 17:30

Sebaka: EMS Auditorium, Bloemfontein Campus

Puo ena ke mokete wa ngwahaketekgolo wa Afrikaans e le puo ya mmuso mme hona e tla ba pontsho ya katleho ya mefutafuta ya puo esita le totobatso ya bohlalefi mabapi le nalane ya yona.

Sebui sa sehlooho ke Moprofesa Joan Hambidge, puo ya karabelo e tla hlahiswa ke Moprofesa Hein Willemse, boithabiso bo tla phethahatswa ke setsebi sa mmino e leng Frazer Barry, ya hlahang UFS Lefapha la Drama and Theatre Arts, esita le Sehlopha sa Likhoele tse ’nè (String Quartet).

Ho tla ba le ditshebeletso tsa bofetoledi.

Prof Joan Hambidge
Moprofesa Joan Hambidge ke sethothokisi, setsebi sa dipale, esita le ramahlale wa setjhaba. Ha jwale o phomotse mosebetsing ebile ke mofuputsi e moholo wa UCT.

Prof Hein Willemse
Moprofesa Hein Willemse ke Hlooho ya mehleng ya Lefapha la Afrikaans, Yunivesithing ya Pretoria ebile ke motataisi le mokgothaletsi ho tsa puo.

Frazer Barry
Frazer Barry ke setsebi sa mmino se tsebahalang, mohlahisi wa thelevishene le seyalemoya, sethothokisi, mohlahisi le setsebi sa kgwebo.

Dipotso:
Alicia Pienaar: pienaaran1@ufs.ac.za
Etsa bonnete ba hore o ngodisitse pele ha Mantaha 5 Motsheanong 2025.
Tobetsa mona ho ingodisa

News Archive

Carbon dioxide makes for more aromatic decaffeinated coffee

2017-10-27

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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