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07 May 2019 | Story Valentino Ndaba | Photo Charl Devenish
Noko Masalesa
Noko Masalesa, Director of Protection Services, in conversation with students and stakeholders to plan a safe way forward.

Safety and security are human rights that constitute social justice. At the centre of the agenda at the University of the Free State’s (UFS) Social Justice Week held on the Bloemfontein Campus from 17-22 April 2019 were discussions about off-campus safety. Stakeholders agreed on an upgrade to security measures in order to ensure the success and wellbeing of the student population.

A call to students

Prof John Mubangizi, Dean of the Faculty of Law, in his capacity as representative of the UFS Rector and Vice-Chancellor, Prof Francis Petersen, expressed his view on institutions of higher learning no longer functioning as ivory towers. “For any initiative to succeed, collaboration is necessary between key roleplayers,” he said.

He aptly pointed out that: “We cannot underscore the importance of safety and security, not only for the university but also for the communities around us. What the university does benefits the community and vice versa. I pledge the university’s commitment to play a leading part to ensure that the collaboration works,” said Prof Mubangizi.

Beefing up security: Who is involved?

In view of the collaborative effort Prof Mubangizi alluded to, the engagement was twofold. First was the roundtable discussion facilitated by Protection Services which then escalated into a public dialogue where students had the opportunity to interact with external delegates.

The South African Police Services, Community Police Forum, Private Security, Mangaung Metropolitan Municipality, Provincial Commissioner, and Deputy Minister of Police were well represented in this critical conversation. Internally, members of Protection Services, Housing and Residence Affairs, Student Affairs, Institute for Social Justice and Reconciliation, Student Representative Council, and the Department of Criminology heard the plight of off-campus safety faced by students.

Changes in the horizon

The discussions culminated with recommendations which will see the future of student safety take a different direction. According to Skhululekile Luwaca, former SRC president, these include “the municipality’s commitment to immediately address issues such as street lights and enforcing by-laws, ensuring an integrated accreditation system, and drafting a policy for off-campus accommodation, running more crime awareness campaigns, and giving police patrols more visibility.”

In addition to resolving to set up a student safety forum with all the stakeholders, the Mangaung Metropolitan Municipality has invited the UFS to join Reclaim the City – a safety forum where practical solutions to crime are devised and implemented on a weekly basis.


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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