Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
08 December 2021 | Story Nonsindiso Qwabe
Dr Bernard
Dr Eleanor Bernard heads the Centre for Teaching and Learning on the Qwaqwa Campus.

“I realised that our students are not regularly exposed to and immersed in an English first language environment. So, for two years, I created control groups and tested how to implement a film club to support their language learning as well as engage them. In the end, I created a framework that university language teachers can use, with very specific guidelines as to how to make it successful.”

For her PhD study in Higher Education Studies, Dr Eleanor Bernard created a play on traditional learning by implementing a film club as a way of enhancing the basic interpersonal communicative and English literacy skills of non-native speakers on the Qwaqwa Campus. Dr Bernard is the Assistant Director of the Centre for Teaching and Learning on the Qwaqwa Campus. She will be graduating with her PhD in Higher Education Studies during the December 2021 graduations. The title of her study is: Implementing a film club to enhance English second-language students’ basic interpersonal communicative and basic English literacy skills.

Building on her passion for language learning and acquisition, Dr Bernard wanted her study to be a fun and interesting way of enhancing the already existing General English language module by creating a space for exposure and social interaction. She did this by forming student groups that would regularly watch films and opened spaces for engagement as a way of focusing on the language development of the students.

“The highlight for me was sitting in a university lecture venue, while watching Tsotsi or Pitch Perfect with students, and seeing them interacting, laughing, and enjoying a usually very serious space. Also, the wonderful discussions they shared on Blackboard around elements such as lobola, or stereotypes. Lastly, seeing how by the end of the year, they would walk into my office and interact with me more confidently in English,” she said.

Language studies has been a part of her academic journey from her Honours qualification. She has an MA degree in Language Studies from the UFS. She said working on the Qwaqwa Campus with language and literacy modules, she loved the process of watching students blossom as they gained more confidence in using the English language. “I especially love receiving a student at the beginning of the year, who you can see struggling and almost battling through the content and the skills. And then to see the change by the end of the year, and how their confidence increased.”

‘No learning can take place without engaging students’
She said she hoped faculties would also see the value of focusing on the language development of students as a baseline for academic literacy skills development.

“No learning can take place without engaging students, and there are so many guidelines and practical ways to ensure this engagement, including in language learning. Student success is not just about performance or final marks, but also about students completing a year where they have interacted with others and learned to care for them, where they have been changed to want to impact societies and communities, and where they have acquired skills that they will use when they enter the world of work.”

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