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07 July 2023 | Story Kekeletso Takang
UFS Industry VisitsUFS Industry Visits - promoting student development
Students from the University of the Free State (UFS) recently had the opportunity to visit four Bloemfontein companies as part of their learning experience in the School of Accountancy.

The University of the Free State (UFS) is committed to producing employable graduates. Being student-centred, the UFS is continuously seeking opportunities to promote the learning experience by taking a holistic approach where teaching and learning extend beyond the four walls of a lecture hall. It is to this end that the UFS School of Accountancy recently took hands with local businesses to expose students to the real world of work through industry visits.

Aimed at providing students with insights into the real world, the industry visits are the initial point of contact between students and the working industry. The approximately 280 students in the Bachelor of Accounting (final-years), Bachelor of Commerce Honours in Accounting, and Postgraduate Diploma in General Accountancy were exposed to the real world so they could see first-hand what professional accountants do, how the business world works, and how their different modules integrate.

Four of Bloemfontein’s largest companies agreed to host a group of 70 students each. Students were given the opportunity to sign up for the company they found most interesting. The companies – Raubex Infra, SA Truck Bodies, Interstate Bus Lines, which sponsored transport to and from all the companies, and Sun Windmill Casino – function in the construction, manufacturing, transportation, and entertainment sectors, respectively. Students were not only treated to talks by the directors and senior staff of all the companies who took time to address them and share insightful information about their operations, but also to tours and treats.

“The updated SAICA competency framework, which guides most of our teaching at the School of Accountancy, requires us to enhance our focus on professional values, attitudes, and acumens (PVAAs). The industrial visits specifically address business acumen, but the added benefit is that it inspires and excites students, as it exposes them to where they may be in future," says Ané Church, Lecturer in the School of Accountancy.

The industry visits were not only fun and tours, but students were also tasked with writing a reflective essay after the visit, setting out what they learnt, found interesting, and would recommend to the respective companies. This, in turn, addressed students’ writing skills and uses reflection as a means of learning.

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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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