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UFS to offer agricultural engineering, as well as Africa’s first postgraduate ecological engineering sciences degrees

01 September 2025 | Story Martinette Brits | Photo Supplied

For the first time, the University of the Free State (UFS) will be offering a full four-year engineering degree. From 2026, the Faculty of Natural and Agricultural Sciences will present the Bachelor of Engineering (BEng) in Agricultural and Biosystems Engineering, alongside new PhD and MSc degrees in Ecological and Nature-based Engineering Sciences – the first postgraduate qualifications of their kind on the African continent. Together, these programmes strengthen the university’s role in addressing some of the world’s most pressing and complex sustainability challenges.

Louis Lagrange, BEng Project Manager, describes the new undergraduate degree as a milestone for the university: “It will be the first full engineering degree presented by the UFS, and it directly targets the pressing water–food–energy nexus. It combines hard-core engineering and precision farming digital skills with the living world of biosystems to develop regenerative and environmentally sustainable food production systems.”

The BEng degree is endorsed by the Engineering Council of South Africa (ECSA) and approved by the South African Qualifications Authority (SAQA). It is designed to prepare students for the full agricultural engineering design process – from identifying and evaluating challenges, to designing, implementing, and testing sustainable solutions. Students will also be able to specialise through electives in animal production, horticulture, or open land crop production.

Lagrange explains that the programme offers students hands-on engagement from the start. “They will gain experience in agricultural mechanisations such as drones and GIS, water and irrigation systems, soil and environmental stewardship, renewable energy including solar and biofuels, precision agriculture, data-driven smart farming, and food processing.”

BEng graduates will be well positioned for diverse careers, ranging from agricultural/biosystems engineer, irrigation and water resource engineer, smart farming specialist, and food processing engineer to roles in mechanisation, soil conservation, animal husbandry, and energy conversion. Employers include agribusinesses, consulting engineers, environmental firms, government agencies, and research organisations.

According to Dr Jacques Maritz, Head of Engineering Sciences, “Our BSc, MSc, and PhD graduates will be uniquely positioned as ecological engineering scientists who can also branch out to advanced sustainability analysts, computational sustainability professionals, or nature-based complexity scientists who will have the future-proof skill of solving complex sustainability challenges in interdisciplinary teams by using some of the most advanced technology. On the horizon – an NQF 8 postgraduate diploma (PGDip) in Ecological and Nature-based Engineering Sciences to academically link undergraduate students to postgraduate studies.”

Postgraduate degrees: advancing ecological engineering

Alongside this undergraduate development and the existing BSc specialising in Physics with Engineering Subjects, the UFS is also introducing new postgraduate degrees in Ecological and Nature-based Engineering Sciences. “These are the first qualifications of their kind on the African continent and are endorsed by the International Ecological Engineering Society (IEES) and the Ecological Engineering Institute of Africa (EEIA),” explains Dr Maritz.

Dr Maritz explains: “Ecological engineering applies ecological and complexity science principles to design and restore sustainable ecosystems that integrate human society with the natural environment. These programmes will also strengthen work-integrated learning at the UFS, preparing graduates to address climate resilience, scientifically led biodiversity restoration, pollution remediation through data-driven interventions, and sustainable complex systems development.”

The postgraduate programmes are linked to the UFS’ growing research agenda, which includes plans for a biomass production facility at the UFS Industrial Park to advance scientific circular economy solutions, sustainable energy, and bio-inspired technologies. They also engage with cutting-edge fields such as extreme ecological engineering – creating new ecological functionality in severely degraded environments – and industrial ecological engineering, which reimagines the built environment through green construction materials, circular economy practices, and innovations such as 3D-printed green concrete.

Both Lagrange and Dr Maritz emphasise that these qualifications reflect the UFS’ Vision 130 commitment to being research-led, student-centred, and regionally engaged. They agree that the new programmes are ideally suited for students who want to combine engineering, science, and nature with emerging technologies, while pursuing careers that make a real impact on sustainability in South Africa and beyond.

News Archive

Research eradicates bacteria from avocado facility

2017-01-17

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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