Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
09 April 2021 | Story Dr Nitha Ramnath | Photo Supplied
Tiisetso Mokoena tops the UFS Management Development Programme class of 2020

A tough 2020 did not dampen the spirit of Tiisetso Mokoena. Determined and steadfast, she obtained the highest average (92%) to become the top student in the Management Development Programme (MDP) offered by the University of the Free State (UFS) Business School. Mokoena enrolled for the MDP after receiving a bursary from the Services SETA. This is a remarkable achievement, as not only did Mokoena have fierce competition from an exceptionally large group – COVID-19 presented its own challenges that Mokoena had to face. Mokoena transitioned seamlessly from traditional face-to-face to online learning and excelled at it.

“Ms Mokoena was a very enthusiastic and committed student. She worked extremely hard and was not deterred by the transition from face-to-face to online lectures. Her hard work paid off, with impressive results. We are very proud of her,” says Programme Coordinator, Jo’Anni Deacon.

Mokoena also adds: “It has been a great honour to be part of the Higher Certificate Management Development Programme (MDP), and I thank my employer, Services SETA, and the UFS Business School for making it all possible.”
“My overall experience of the programme was impressive. I came into it with an expectation to better myself in my career; I believe that I will achieve this, as I was presented with tools and techniques that will help me grow professionally. As I went through the programme, I developed a sense of ambition and my strategic thinking progressed. I learned a lot about the basics of an everyday business world as we went through different modules, and there were a lot of ‘aha’ moments,” Mokoena adds.

“The UFS Business School is phenomenal, the academic support we as students received throughout the programme was amazing – we were treated with such dignity. The staff took time and effort to assist us with the utmost care and professionalism,” says Mokoena about her experience in the UFS Business School. 

About the UFS Business School and the Higher Certificate in Management Development

The Business School within the Faculty of Economic and Management Sciences has established itself as a leader in South Africa with the provision of the Higher Certificate in Management Development. A dynamic supplement to this spectrum of management programmes on offer is an excellent Higher Certificate in Management Development (MDP). The MDP emphasises leadership development, broadens insight through exposure to the most important management disciplines, and integrates it into a total management approach. This tailor-made qualification has been designed to assist institutions, managers, and managers-to-be in both the private and public sectors.

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