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21 June 2023 | Story Amanda Tongha | Photo Samkelo Fetile
Enhancing students’ linguistic abilities
Language teaching professionals from Southern Africa attended a two-day symposium on foreign language acquisition practice on the UFS Bloemfontein Campus.

Language teaching professionals from across Southern Africa recently gathered at the University of the Free State (UFS) to discuss the need for benchmarking and standardising teaching and assessment practices. 

With the aim of empowering lecturers and researchers responsible for language acquisition and delivering competent students to ensure their employability globally, the educators addressed the challenges of language acquisition in the region. It was the first time that educators from different language disciplines, including Dutch, German, French, Afrikaans, isiZulu, Sesotho, and Sign Language, met to discuss standardisation and best practices in teaching and assessment.

The symposium, which was hosted on the Bloemfontein Campus on 8 and 9 June 2023, brought together educators from the UFS, North-West University, University of Cape Town, University of the Western Cape, University of KwaZulu-Natal, University of Pretoria, Rhodes University, University of South Africa, Stellenbosch University, University of the Witwatersrand, University of Limpopo, and Sol Plaatje University. They were joined by participants from the University of Namibia and the National University of Lesotho, providing a regional perspective. 

Standardising language acquisition in Southern Africa 

Prof Angelique van Niekerk, Head of the Department of Afrikaans and Dutch, German and French, says the meeting marked a movement towards delivering competent students in order to increase their employability in languages such as Dutch, German, French, Afrikaans, isiZulu, Sesotho, and Sign Language. 

“It is probably the first time that the different language disciplines and colleagues from disciplines involved in language acquisition in Southern Africa have met to discuss the need for benchmarking and standardising.” 

“The symposium was not on multilingualism per se, but as language scholars, we support multilingualism. Social cohesion is affected positively if people and their culture and language are accepted and thus used.”

Talking about the need for a reference framework for benchmarking languages, Dr Michelle Joubert, Subject Specialist in the UFS Centre for Teaching and Learning, told delegates in her keynote address that a coordinated system provides a basis for the mutual recognition of language qualifications. 

“Our aim is to develop a framework of standards for indigenous and foreign languages to reflect the political and social realities of a multilingual and multicultural South Africa, which aims to form a single South African education, employment, and residential space for its citizens.”

In another keynote address, Dr Carina Grobler, Subject Chair and Lecturer in French at the North-West University, highlighted effective assessment tools to enhance students’ ability to learn additional languages. 

Prof Van Niekerk says many new initiatives, such as the sharing of resources on centralised platforms, were some of the gains following the symposium; a follow-up event is planned for 2024. 

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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