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31 August 2022 | Story Leonie Bolleurs | Photo Supplied
Mpeti Morojele and Prof Jonathan Noble
Mpeti Morojele and Prof Jonathan Noble, Head of the UFS Department of Architecture, at the 33rd Sophia Gray Laureate exhibition at the Oliewenhuis Art Museum.

The Department of Architecture at the University of the Free State (UFS) this year hosted the first entirely face-to-face Sophia Gray lecture since the COVID-19 pandemic.

Talking about Changing Landscapes, Practice and Pedagogy, Mpeti Morojele presented the Sophia Gray lecture – the biggest and most prestigious architectural lecture of its kind in South Africa – as the 33rd Sophia Gray laureate. 

Hailing from the mountain kingdom of Lesotho, Morojele established his design practice, the award-winning MMA Design Studio in Johannesburg, in 1995.

Local and international recognition

He is recognised for his work locally and internationally. Some of his projects include the South African Embassy in Addis Ababa, Ethiopia, the South African Embassy in Berlin, Germany, the Maropeng Cradle of Humankind World Heritage Site, as well as various Freedom Park projects, including Isivivane (the symbolic final resting place for South Africa’s fallen heroes), //hapo (telling the South African story of liberation and the triumph of the human spirit over three billion years), and Isikhumbuto (a place of remembrance, a gathering space at the top of a hill surrounded by the wall of names, sanctuary, gallery of leaders, and the Moshate).

His work engages the African landscape, incorporating indigenous knowledge and ritual to respond to and enhance the emerging African condition. 

Becoming conscious

In his presentation, Morojele explained his journey as an architect. As a student at UCT, he said he felt invisible because of the kind of architecture they were talking about; mostly architecture of the Western world. He elaborated on this point in his lecture, explaining about becoming conscious. 

“It took me back to the origins of humankind. I found it interesting to consider what the architecture at our origins was, and what the environment was in which we first became conscious of ourselves. It has been said that becoming conscious was the beginning of spirituality and art. The idea of origins interested me, and also how we as humans became conscious of ourselves and the space around us, until we achieve the state where we actually create these spaces for our own use,” he said.

As we evolved and became more conscious, we not only found objects, but placed objects in ways that commemorate our unity and spirituality, signifying society coming together to build something collectively. 

Symbiotic relationship with the environment

For Morojele, animism – the belief that inanimate objects have internal and distinct spiritual essences – also played a role in his designs. “It allows us to have a symbiotic relationship with our environment, as opposed to one where we exercise dominion over all things. Animism locates us in the environment as part of it rather than as outside observers of the environment.” 

The Kigutu International Academy, located on the Village Health Works Campus 100 km south of Bujumbura in Burundi and nestled in lush mountains overlooking the beautiful Lake Tanganyika, is an example of where he places humans close to the environment. Here he essentialises the architecture. This project, with its open spaces, also brought about the question of walls. Do they unite or do they divide?

Morojele remarked that architecture takes lessons from landscapes by giving shelter, security, and prospects of freedom. 

Re-establishing what it means to be human

His goal was to plant an idea in the minds of the architects who attended the lecture. Given where we are headed in the world, we need to re-establish what it means to be human; it is only when we recognised the humanity in all of us that we can begin to use architecture to unite societies. 

In order to do this, our focus needs to be less intellectual and more about how we as biological beings behave in environments; for example, do people feel alienated or do they belong in our spaces?

“These are the important things, I think, our architects need to talk about in the future,” he concluded his lecture. 

• Examples of Morojele’s work, including drawings and designs, can be viewed at the Oliewenhuis Art Museum.

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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