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29 June 2018 Photo Stephen Collett
Learners at youth dialogue encouraged to know their human rights
learners presented their insights on human rights issues.


Youth Day was celebrated on 16 June 2018, and as part of the celebrations, the Free State Department of Education, the Free State Centre for Human Rights, and the Faculty of Law at the University of the Free State (UFS) presented a learner dialogue for 160 Representative Council of Learners from Wepener, Dewetsdorp, Ladybrand, Thaba Nchu, Botshabelo and Bloemfontein to address the challenges they face at their schools and in the country at large. The dialogue took place on 19 June 2018 at the UFS Bloemfontein Campus. 

The Dean of the Faculty of Law, Prof John Mubangizi, on welcoming the learners, teachers and representatives of the Department of Education and other guests said: “It is a great honour to have future leaders here, and possible future students of the UFS. I invite you to come and study in the Faculty of Law and look forward to welcoming some of you in the near future.”

Youth encouraged to participate positively
The focus of the dialogue was on children’s rights, their needs and vulnerabilities, and their right to participate in all matters that concern them. It was also a platform for the learners to express what they saw as important challenges, how they are affected, and possible solutions. The Director of the Free State Centre for Human Rights, Prof Danie Brand, led an interactive session with learners, discussing basic human rights as contained in the South African Constitution.
 
“Human rights are what you are born with and do not need to be negotiated. These are rights such as the right to housing, food, education and healthcare,” he said. 

Outcomes of dialogue could influence policy decisions
The one-day dialogue session had learners from different schools interacting with each other. They presented their final deliberations to the officials present, including the District Director of the Department of Education, Mr December Moloi, Prof Brand, Prof Mubangizi, senior lecturer in Public Law at UFS, Dr Mariette Reyneke, and others. Mr Moloi encouraged learners to continue to set a good example to their peers amid challenges they faced at schools, such as gangsterism. “The ideas you share today are important to the department, because these will help create solutions to some of the problems we face in schools and could inform future education policy formation,” he said.

The event was sponsored by Old Mutual which gave the learners a presentation on life skills, such as financial management and budgeting, to encourage them to manage their money in a responsible way as future leaders, and to support their parents’ efforts at providing for them and their education. 

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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