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08 July 2019 | Story Xolisa Mnukwa | Photo Charl Devenish
Thought-Leader Series 2019
Executive Director: Centre for Politics and Research and political commentator, Prince Mashele, one of the key experts at the UFS Thought-Leader series, advises the youth in South Africa on acquiring multidisciplinary skills in order to survive in the future world of work.

The University of the Free State (UFS), in collaboration with Vrye Weekblad, presented the second consecutive Thought-Leader series on the Bloemfontein Campus on 4 July 2019, with topics focusing on economic growth and entrepreneurship for an emergent South African economy and environment. The series formed part of the literature festival of the Vrystaat Arts Festival, presented on the campus from 1 to 7 July 2019.

Rector and Vice-Chancellor of the UFS, Prof Francis Petersen, opened the discussions with the words, “We need to project ourselves as thought-leaders,” clarifying that the UFS itself is responsible for contributing to local and national public discourse by assembling industry experts to deliberate on imperative topics that affect students, the broader community, and the country in one way or another.  

Editor of the Vrye Weekblad, political analyst, and master of ceremonies for the morning, Dr Max du Preez, introduced the panellists for the first discussion, themed How can we fix the South African economy and create jobs.

According to Prof Philippe Burger, Vice-Dean (Strategic Projects): UFS Faculty of Economic and Management Sciences, South Africa has the highest level of economic inequality in the world. He further explained that the long-term solution to growing the country’s economy is to improve the quality of education, which will result in a higher growth rate for the country.

Chief Economist at Investec, Ms Annabel Bishop, went on to explain that, “South Africa has a worrying de-industrialisation trend, which contributes to the decreased opportunity for decent job creation, essentially contributing to our struggling economy.” This was echoed by Executive Director: Centre for Politics and Research and political commentator, Mr Prince Mashele, who spoke on employing the unemployed. He suggested that South Africa’s youth be trained and equipped with skills so that SA gravitate more towards producing an industrial class in order to build its economy.

Director and Chief Economist of the Efficient Group, Mr Dawie Roodt, concluded the first discussion by highlighting that South Africa needs a GDP growth rate of 2,5% to at least maintain the country’s current unemployment rate and prevent it from getting worse. 

The second panel discussed the establishment of a pro-youth entrepreneurship country, where the Head: Department of Business Management (UFS), Prof Brownhilder Neheh, spoke about bridging the intention-behaviour gap, and further exposing the youth to practical opportunities and teaching them the importance of group mentality as entrepreneurs. Chief Executive Officer: Harambee Youth Employment Accelerator, Ms Maryana Iskander, suggested that foreign direct investment can improve youth employment.

The final panellist to speak during the last half of the discussion, Senior Banker and Transactor: Acquisition and Leveraged Finance Division at Rand Merchant Bank – Corporate Investment Bank, Mr David Abbey, advised on tomorrow’s world of work by saying, “The focus of the workplace should always be on the people, and entrepreneurs should understand the importance of multidisciplinary skills, and emotional and social intelligence, as the future world of work requires a trusted society.”

 


UFS Thought-Leader Series
Programme: 

 

UFS Thought-Leader Series
Panel discussions:

 
 UFS Thought-Leader Series Programme  
 



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.

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