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14 August 2025 | Story Gerda Marié van Rooyen | Photo Stephen Collett
Prof Angelique van Niekerk
The Top Management of the UFS was represented by Prof Vasu Reddy, Deputy Vice-Chancellor: Research and Internationalisation, who welcomed the guests in Afrikaans. With him is Prof Angelique van Niekerk, who delivered her inaugural lecture; Dr Francois Smith, Head of the Department of Afrikaans and Dutch, German and French; and Prof Marlize Rabe, acting Dean of The Humanities.

In her inaugural lecture on 5 August 2025, Prof Angelique van Niekerk emphasised that linguistic choices in persuasive communication, specifically advertising communication, carry ideological implications. This is referred to as ‘linguistic capital’, which includes all the language instruments available to a competent language practitioner and/or copywriter.

The inaugural lecture, titled ’n Kulturele en psigolinguistiese perspektief op hoe 'n wêreldbeskouing beïnvloed word aan die hand van advertensiekommunikasie: 1995-2025 (A cultural and psycholinguistic perspective on how a worldview is influenced based on advertising communication: 1995-2025), offered an overview of some of her published research concerning the use of different linguistic instruments within the disciplines, such as syntax, sociolinguistics, morphology, semantics, pragmatics, etc.

Prof Van Niekerk, a lecturer in the Department of Afrikaans and Dutch, German and French at the University of the Free State (UFS), also elaborated on aspects such as nostalgia, controversy, intertextuality, identity, etc., from her research within applied linguistics, based on Afrikaans and English print advertisements.

The lecture concluded with examples from Afrikaans magazines and archives of the Loerie and Pendoring advertisements from 2020 onwards. These examples illustrated the importance of cultural congruence and intellectual challenge (play) in an effective (good) advertisement. 

“Recent examples (data) emphasise the importance of social issues as a point of reference; that with which the speaker (marketer) and audience (target market) identify – their good cause,” said Prof Van Niekerk. She referred to significant patterns from recent South African print advertising, stating that South African advertisements involve inclusivity, interactivity through the use of web addresses, QR codes, etc., acknowledgement of the market’s heritage/roots, cultural norms, etc., social consciousness, and a world without pretentiousness.

 

Prestigious attendees

In attendance was Prof Vasu Reddy, Deputy Vice-Chancellor: Research and Internationalisation, who welcomed the attendees in Afrikaans. He described the event not only as a ceremonial right, but also as the celebration of a milestone, the sharing of knowledge, a goal, and setting the course for the future. “This (the inaugural lecture) is a joyous occasion, especially because it coincides with the official centenary of Afrikaans.” 

Prof Marlize Rabe, acting Dean of The Humanities and Vice-Dean: Teaching and Learning, introduced the star of the evening and highlighted some of Prof Van Niekerk's academic achievements, including a PhD in Afrikaans and Dutch and a master’s degree in Communication Sciences (cum laude), as well as a C rating from the National Research Foundation, underlining her contribution to academic research.

The final word of the evening belonged to Head of Department, Dr Francois Smith. “It is significant how you have proved how applied linguistics can get a grip on who and what we are and how we shape our world through language. Science allows us to take a step back and contemplate how language gives us the leverage to take hold of our world. This lecture underscores that our work is of value and has something to offer the world, because language can widen borders and gives us a way to look at the future.”

 


 

Vakmanskap van advertensiewese in intreerede bespreek

 

Prof Angelique van Niekerk, dosent in die Departement Afrikaans en Nederlands, Duits en Frans, het gedurende haar intreerede op 5 Augustus 2025 beklemtoon dat taalpraktyk, oftewel taalkeuse, in oorredende en spesifiek advertensiekommunikasie ideologiese implikasie inhou. Daar word hierna verwys as ‘linguistiese kapitaal’ en sluit in al die taalverwante instrumente in die hand van ʼn vaardige taalpraktisyn (kopieskrywer). 

Prof Van Niekerk het in haar intreerede, getitel ’n Kulturele en psigolinguistiese perspektief op hoe 'n wêreldbeskouing beïnvloed word aan die hand van advertensiekommunikasie: 1995-2025, eerstens ’n oorsig gebied van die navorsing wat sy reeds gedoen het oor die funksionele aanwending van die verskillende taalinstrumente binne die teoretiese dissiplines soos sintaksis, sosiolinguistiek, morfologie, semantiek, pragmatiek, ens.

Daarna het sy ’n oorsig gebied uit die toegepaste linguistiek (in Afrikaans en Engels) op grond van Suid-Afrikaanse advertensiekommunikasie. Die gebruik van aspekte soos nostalgie, kontroversie, intertekstualiteit, identiteit, ens. in die advertensiewese is juis om hierdie rede op data van 1995-2025 geskoei. Prof Van Niekerk het haar intreerede afgesluit met voorlopige insigte oor die aard van gedrukte advertensiekommunikasie uit datastelle sedert veral 2020 (Afrikaanse tydskrifte, advertensies uit die Pendoring- en Loerie-argief).

Die belangrikheid van kulturele kongruensie en intellektuele uitdaging (spel) in ʼn goeie/ doeltreffende advertensie – soos ook aangedui deur Gevorgyana en Manucharovab (2015) – is ook uitgelig. Onlangse advertensies (datastelle) blyk die belangrikheid te toon van sosiale kwessies as verwysingspunt; dit waarmee die spreker en ontvanger identifiseer (jou good cause). 

Die patroonmatigheid en opvallendhede uit meer onlangse Suid-Afrikaanse advertensies is uitgelig. Plaaslike advertensies behels multi-identiteite en ʼn (ras)-inklusiewe samelewing waarin tale saam gebruik en afgewissel word binne een teks/konteks; verhoogde interaktiwiteit deur webadresse, QR-kodes, ens.; erkenning van die teikenmark se herkoms, sosiale bewustheid (bv. genderregte en omgewingsbewaring) en ’n wêreld gestroop van valse skyn.

 

Vooraanstaande gaste

Prof Vasu Reddy, Adjunk-Visekanselier: Navorsing en Internasionalisering, het die gehoor in Afrikaans verwelkom. Hy het die geleentheid nie bloot as ʼn seremoniële reg beskryf nie, maar ook as die viering van ’n mylpaal, die deel van kennis, ʼn doelwit en as padkaart vir die toekoms. “Dit (die intreerede) is ’n vreugdevolle gebeurtenis, veral omdat dit saamval met die amptelike eeufeesviering van Afrikaans.”

Prof Marlize Rabe, waarnemende Dekaan van die Fakulteit Geesteswetenskappe en Visedekaan: Onderrig en Leer, het die ster van die aand aan die gehoor bekendgestel en sommige van haar akademiese prestasies uitgelig. Dit sluit in ʼn PhD in Afrikaans en Nederlands en ’n meestersgraad (cum laude) in Kommunikasiewetenskap, sowel as ‘n C-gradering van die Nasionale Navorsingstigting wat prof Van Niekerk se bydrae tot akademiese navorsing staaf.

Die laaste woord van die aand het aan die Departementshoof, dr Francois Smith, behoort. “Dit is besonders hoe jy gewys het hoe toegepaste linguistiek ons ’n greep kan gee op wie en wat ons is en ons wêrelde skep deur taal, hoe ons verlei en verlok word. Wetenskap laat ons terugtree en sien hoe taal gebruik word en ons ’n vashouplek gee. Dis ’n bevestiging dat ons wetenskap en loopbane iets bied aan die wêreld waarin ons is. Taal is ’n manier om ons wêreld te verbreed, grense oop te maak en ’n manier te gee om na die toekoms te kyk.” 

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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