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12 December 2022 | Story Leonie Bolleurs | Photo Leonie Bolleurs
Dr Karen Venter
Dr Venter received her PhD at the December graduation ceremonies. She focused on addressing societal challenges through the practice of engaged scholarship in community-university research partnerships for the common good.

When asked what inspired her to pursue a PhD, Dr Karen Venter, Head of the Division of Service Learning in the Directorate Community Engagement at the University of the Free State (UFS), said she wanted to make a difference in addressing societal challenges through the practice of engaged scholarship in community-university research partnerships for the common good. 

“Also, I love to learn and share knowledge – and that is exactly what I did in this PhD, titled: An integrated service-learning praxis approach for flourishment of professional development in community-higher education partnerships.” 

She explains, “My five-articles-style thesis explored the contribution of an integrated service-learning praxis approach towards the flourishment of engaged scholarship in community-higher education partnerships. The approach combined community engaged service-learning (CESL), appreciative inquiry and appreciative leadership, to advance the praxis of engaged scholarship. The study was demarcated in the field of higher education, applied in the discipline of nursing education, and contextually bound to three interrelated action research cycles and settings – for international, national, and local level engagement.”

Community members participate in the research journey

“The intent of the study was to recognise the community-led action learning of community member participants at the core action learning set,” says Dr Venter. 

The study followed a participatory action learning and action research methodology. During her research journey, she was joined by members of the community, specifically from Bloemshelter – a shelter for the homeless. “They co-constructed and completed a four-year community-led action learning pathway to holistic development (spiritual, personal, professional), which brought about holistic social change and well-being in their livelihood, moving from dependence on others to establishing viable multiple micro-enterprises,” she says.

The UFS affiliated with GULL to reward the community member participants’ action learning. “Already in 2019, GULL certified their action learning with a Professional Bachelor’s degree, while I still had to document the action research, and only now received the PhD,” says Dr Venter. 

“I am grateful to all the participants who co-created action-oriented knowledge with me in the study, from international, to national, to local level of engagement.”

Integrating a PhD with work and life

A PhD requires a lot of hard work and effort, to the point that the lines between studies, work, and life become blurred. Dr Venter acknowledged that she tried to balance work/life and study, but “I was not very good at it”. 
Passion, patience, peace, perseverance, positivity, and prayer are good principles to maintain when you are in the process of completing a PhD. – Dr Karen Venter 

She elaborates, “Studying became an integrated part of my work and life.  For the duration of my studies, I started working at 03:00 and I also did not watch any television.” She did, however, make time for herself by joining the wellness workout programme presented by the UFS, enjoyed gardening, and playing with her grandchildren. “I also tried to rest one day over weekends, and made time to praise and worship, which energised me for the next week,” she adds. 

“Passion, patience, peace, perseverance, positivity, and prayer are good principles to maintain when you are in the process of completing a PhD, she believes. 

Dr Venter says that although writing a PhD is indeed lonely, it is also an exciting journey, “especially when you reach those moments of breakthrough that can only come to life after deep reflection.” She also describes it as a deep spiritual journey. “Almost like walking in and out of a labyrinth – and where many hours become equal to a breath.

She is very grateful to her supervisors, Dr Somarie Holtzhausen, Prof Mabel Erasmus, and Dr Elanie Myburgh. “I deeply honour and salute you for your unconditional and continuous coaching, compassion, and care – guiding, supporting, motivating, mentoring, and keeping me grounded until I completed the journey.”

 

 


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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