Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
28 January 2022 | Story Prof Sethulego Matebesi | Photo Sonia Small (Kaleidoscope Studios)
Prof Sethulego Matebesi
Prof Sethulego Matebesi.

Opinion article by Prof Sethulego Matebesi, Academic Head of Department, Associate Professor: Sociology, University of the Free State .


In Teams of Rivals, author Doris Goodwin notes how former American president Abraham Lincoln created value by surrounding himself with people who have the capacity and the tenacity to challenge him. Despite many of the challenges he faced throughout his presidency, he managed to build a common cause with his cabinet to foster the interests of Americans. In a completely different text, Crisis of Conscience: Whistleblowing in an Age of Fraud, Tom Mueller laments how people fail to act out of apathy, complicity, or fear. 


These two distinct texts raise the question of how leadership should react to criticism and the requisite degree of freedom of speech that public representatives should have. 


Similarly, the back-and-forth saga between Tourism Minister Lindiwe Sisulu and President Cyril Ramaphosa over whether she apologised for her opinion piece that criticised black judges, effectively drills home a longstanding historical lesson. This lesson is that political astuteness is a phenomenon as old as the history of politics itself.

Although the astuteness shown by Sisulu against critics from her political party may be puzzling, her public exchanges that a statement by President Cyril Ramaphosa was a ‘misrepresentation’ of their meeting are more puzzling. 
But why is this puzzling? What are we to do about what some call a show of unprecedented defiance and others assertiveness? We also need to ask whether Sisulu’s stance can be adequately explained by those who label her as being arrogant and who deserve to be fired by President Ramaphosa.

A political travesty to apologise on behalf of Sisulu

Public apologies are a common occurrence globally. They often come by way of assuming guilt, expressing remorse, and admitting responsibility. Thus, proper apology etiquette requires the ‘wrongdoer’ to deliver the apology. However, this was not the case with Minister Sisulu.

Sisulu acted in a very public way with her opinion piece and her response to the ‘apology in her name’ released by the presidency. Certainly, with her experience as a public figure, she was aware of the implications of her actions.

Furthermore, she was consistent with her narrative against criticism directed towards her. Yet, we do not know why the presidency saw the need to apologise on behalf of Sisulu. Perhaps it had unreasonable expectations that Sisulu would publicly accept what she disagreed with privately.

Notwithstanding the sincerity of the presidency in dealing with this matter, supporters of President Ramaphosa will, on the one hand, be disillusioned by this own goal. At the same time, those who support Minister Sisulu may be encouraged by her steadfast refusal to accept a coerced apology used as a shaming mechanism. She inadvertently represents a dynamic articulation of an alternative repertoire of contention within the ANC.

Lately, we have witnessed a surge of nationalism globally during the COVID-19 pandemic. The Economist referred to the narrative battle between China and the United States over the pandemic as a ‘new scold war’, threatening to tear the world apart. But, as this Sino-US relationship reminds us, what is at stake is less the tit-for-tat scold war between Sisulu and Ramaphosa that threatens to spiral out of control, than the subdued attempts to attain constituent support within the ANC.

Sisulu herself has never publicly indicated her availability to contest the presidency of the ANC at its next elective conference. By any measure, if she does have such aspirations, stepping forward and engaging politically is one thing, but open defiance of authority is another. Since there are no permanently privileged constituencies in political malaise created by regeneration projects such as the organisational renewal drive of the ANC, the struggle to articulate and establish the interests of those who are aggrieved within the party is an ongoing process.

But where does this leave President Ramaphosa?

Many commentators have noted that his long game is no longer effective. However, President Ramaphosa wants to upend the notion that robust debates within the structures of the ANC are not tolerated. He is wary of the propensity of ANC structures to support those who are victimised. And while the scold war is in full swing, others will join in trying to win the hearts and minds of ANC members.

Meanwhile, when failure to act decisively in the face of predictable situations facing the country, particularly during a crisis; we can then no longer talk about protecting the interests of South Africans.

News Archive

Research eradicates bacteria from avocado facility
2017-01-17

 Description: Listeria monocytogenes Tags: Listeria monocytogenes

Listeria monocytogenes as seen under an electron
microscope. The photo was taken with a transmission
electron microscope at the microscopy unit of the UFS.
Bacteriophages (lollipop-like structures) can be seen
next to the bacterial cells.
Photo: Supplied

“The aim of my project was to identify and characterise the contamination problem in an avocado-processing facility and then to find a solution,” said Dr Amy Strydom, postdoctoral fellow in the Department of Microbial Biochemical and Food Biotechnology at the University of the Free State (UFS).

Her PhD, “Control of Listeria monocytogenes in an Avocado-processing Facility”, aimed to identify and characterise the contamination problem in a facility where avocados were processed into guacamole. Dr Strydom completed her MSc in food science in 2009 at Stellenbosch University and this was the catalyst for her starting her PhD in microbiology in 2012 at the UFS. The research was conducted over a period of four years and she graduated in 2016. The research project was funded by the National Research Foundation.

The opportunity to work closely with the food industry further motivated Dr Strydom to conduct her research. The research has made a significant contribution to a food producer (avocado facility) that will sell products that are not contaminated with any pathogens. The public will then buy food that is safe for human consumption.


What is Listeria monocytogenes?

Listeria monocytogenes is a food-borne pathogenic bacterium. When a food product is contaminated with L. monocytogenes, it will not be altered in ways that are obvious to the consumer, such as taste and smell. When ingested, however, it can cause a wide range of illnesses in people with impaired immune systems. “Risk groups include newborn babies, the elderly, and people suffering from diseases that weaken their immune systems,” Dr Strydom said. The processing adjustments based on her findings resulted in decreased numbers of Listeria in the facility.

The bacteria can also survive and grow at refrigeration temperatures, making them dangerous food pathogens, organisms which can cause illnesses [in humans]. Dr Strydom worked closely with the facility and developed an in-house monitoring system by means of which the facility could test their products and the processing environment. She also evaluated bacteriophages as a biological control agent in the processing facility. Bacteriophages are viruses that can only infect specific strains of bacteria. Despite bacteriophage products specifically intended for the use of controlling L. monocytogenes being commercially available in the food industry, Dr Strydom found that only 26% of the L. monocytogenes population in the facility was destroyed by the ListexP100TM product. “I concluded that the genetic diversity of the bacteria in the facility was too high and that the bacteriophages could not be used as a control measure. However, there is much we do not understand about bacteriophages, and with a few adjustments, we might be able to use them in the food industry.”

Microbiological and molecular characterisation of L. monocytogenes

The bacteria were isolated and purified using basic microbiological culturing. Characterisation was done based on specific genes present in the bacterial genome. “I amplified these genes with polymerase chain reaction (PCR), using various primers targeting these specific genes,” Dr Strydom said. Some amplification results were analysed with a subsequent restriction digestion where the genes were cut in specific areas with enzymes to create fragments. The lengths of these fragments can be used to differentiate between strains. “I also compared the whole genomes of some of the bacterial strains.” The bacteriophages were then isolated from waste water samples at the facility using the isolated bacterial strains. “However, I was not able to isolate a bacteriophage that could infect the bacteria in the facility.

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept