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10 January 2022 | Story Rulanzen Martin | Photo Supplied
Dr Mpumelelo Ncube is a dynamic an academic with a clear vision of growth for the Department of Social work and its students.

A drive to be an advocate for social justice is what drove Dr Mpumelelo Ncube, the new head of the Department of Social Work, to pursue a degree and career in Social Work. “I needed to be an advocate for social justice and empowerment of the vulnerable individuals and communities,” said Dr Ncube, who took over from Prof Sandra Ferreira earlier this year. 

Dr Ncube’s academic and professional repertoire is exceptional and his deep-rooted passion for social work is definitely a bonus for the UFS Department of Social Work. He has a PhD in Social Work from the University of Johannesburg, a master’s degree in Social Development, and a Bachelor’s degree in Social Work from the University of Witwatersrand. 

Driven by the need to succeed in whatever task he sets for himself, Dr Ncube says that he strives to make the lives of those in his path better – “The positive change should, however, begin with me so that others could easily believe in my efforts.” 

Opportunity to raise a new generation

He joined academia in 2013 after working as a psychosocial services manager in the NGO sector. “My move to the UFS was in line with my career progression and the need to contribute meaningfully at a strategic level of social work education and practice,” Dr Ncube says.  

The opportunity to work in academia has in fact provided him with an excellent opportunity. “I have the opportunity to raise a new generation of social work professionals that would be passionate, ethical and professional in their practice. In that way, my impact as an educator can be felt in all corners where my students are,” Dr Ncube says. 

An academic of note 

As a senior lecturer, he also notes the tidal changes currently sweeping through academia. He says, “In the age of the fourth industrial revolution, the Social Work academic programme should be able to identify and embrace various developments that would provide the flexibility to attract postgraduate students in different places without the need for relocation. This relates to the delivery of the programme. However, apart from adapting to these changes, the Social Work programme should also foster a cultural innovation with students and enable them to embrace the technological advancements in their social work practice.”

“I have the opportunity to raise a new generation of social work professionals that would be passionate, ethical and professional in their practice.” – Dr Mpumelelo Ncube. 


Apart from being an advocate for social justice and a lecturer he also sees his position as HOD as a being a catalyst to enable others within the department to publishing more research. “Research is a key performance area for any academic, hence the mantra, ‘publish or perish’,” he says. However, he also cautions that trick of publishing research lies in “self-discipline, self-motivation and finding a research niche”.  

Social work is his passion

Social work is Dr Ncube’s passion but he also says that it is a profession, which is “seriously underutilised especially in under developing nations”. The socio-economic conditions in these countries largely drive the underutilisation. “These are nations largely plagued by poverty, unemployment, political illiteracy challenges with policy development and implementation, and moral degeneration among many challenges,” he says. In addition, it is therefore, as Dr Ncube mentions, that “the relevance of the social work profession shall be ever-present”.

  

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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