Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
11 January 2021 | Story Leonie Bolleurs | Photo Supplied
Dr Ria de Villiers is passionate about education as a vehicle to ensure that people are fully engaged in work and life.

The world is rapidly changing, and the Department of Education (DBE) is responding with a plan that aims to prepare learners to adapt to a new world. Ecubed (E3), a DBE programme using playful project-based learning as a learning methodology, unlocks an entrepreneurial mindset in school learners. The E3 programme focuses on entrepreneurship, employability, and education, emphasising learning as a lifelong process. Dr Ria de Villiers is the Curriculum and Schools’ Implementation Manager for E3.

Dr De Villiers, an alumna of the University of the Free State (UFS), is passionate about education as a vehicle to unlock competencies and agency, ensuring that people are fully engaged in work and life. Dr De Villiers therefore invests great effort in contributing to a more relevant education system. “I feel compelled to do something about the challenges we see in education, especially since it is such a vital part of our human (and societal) development,” she says. 

Loving the buzz at schools, the smell of dust and chalk, Dr De Villiers really has a heart for teachers. “Teachers are often unacknowledged, and the work they do is critical,” she believes. She realised that as a teacher, her reach was too small to solve the problems in the South African education system. Therefore, she works as a teacher trainer, where she feels she can have a broader impact.

Her work as implementation manager for E3 allows her to make a positive impact on the education sector, while managing the creation of new learning materials online and face to face, as well as working in teacher development.

The difference in a changed world

Talking about E3, she says the programme prepares learners to acquire skills, knowledge, attitude, and mindset to be business owners or employers while being lifelong learners. The traditional way of teaching is changing, and with skills acquired through the E3 programme, school leavers will be ready to attend a tertiary institution, be prepared for the job market, and/or be able to start a business.

This is not the first time that Dr De Villiers has found herself in the education arena. She received her doctorate in Applied Linguistics from the UFS Faculty of the Humanities under the supervision of Prof Willfred Greyling in the Department of English. Her dissertation was titled, The impact of a discourse-based teacher counselling model in training language teachers for outcomes-based education. Assisting government and teacher unions with the training of teachers helped her to obtain the data for her PhD, in which she proposed a teacher-counselling model to promote teacher efficacy and agency. 

Teaching across borders

A big part of her career was spent in the education environment, although she worked as a businesswoman and freelance consultant for more than 30 years – first as teacher and university lecturer, and later as co-founder of Future Entrepreneurs, a publishing and teacher-support business. 

But it was when she started a language school that her communication business, Jika Communication and Training, came into being; it was not long before this enterprise developed into a leading training organisation for entrepreneurship education programmes endorsed by the International Labour Organisation (ILO). Together with the ILO, she worked on a series of 30 business simulation games and role-plays to promote progressive teaching methodologies, learner-centredness, and activity-based experiential learning. 

Teaching others about learning also allowed Dr De Villiers to cross South African borders when she facilitated the reworking of the vocational curriculum for the Indonesian government. She has done training at all teacher-training colleges in Dar-es-Salaam and Zanzibar for the Ministry of Education in Tanzania. 

A more humane, learner-centred approach

In our changing world, and as it pertains to the education system, Dr De Villiers truly believes that training and teaching needs a more humane, learner-centred approach, with mutual respect between trainer and learner. 

She remains inspired to continue making a difference in the sector. “I want schooling to improve and gear itself for a rapidly changing world. I want young people who are out of work to find their voice and place in the economy. I want every school learner to develop the agency and confidence to stand up in class and ask a question without any fear of losing face. And I want teachers to develop that agency too as they become more and more autonomous, self-reliant, and confident enough to teach using progressive methodologies.”

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