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10 June 2022 | Story Leonie Bolleurs | Photo Leonie Bolleurs
Christopher Rothmann
Christopher Rothmann is standing in one of the containers that will form part of the science park for entrepreneurs.

Adding to the value chain, extending the teaching and learning process, and supporting the development of the surrounding communities – this is the result of seven years of hard work for the Paradys Experimental Farm of the University of the Free State (UFS). Whether it is yoghurt and cheese from the dairy factory, wool products from the wool production and wool processing hub, or an ice-cold beer from the fermentation institute, the farm will soon share the fruits of its labour with the Bloemfontein community.

Situated outside Bloemfontein on the road to Reddersburg, the farm is an agricultural training centre in the Faculty of Natural and Agricultural Sciences for UFS students who, among others, take modules in agriculture, working with cattle, sheep, crop cultivation, and milk production. Moreover, the farm also offers training opportunities to members of the community, ranging from short courses in animal health and animal breeding to workshops in wool classing, sheep handling, and sheep management. 

“We want to take students through the entire production chain. It is a valuable part of our teaching and can make our work on the farm more profitable. The aim is to extend the use of a specific product. Instead of only selling milk, we add value to the product and sell it, for instance, as cheese or yoghurt. Or in the case of grain, rather than only selling it to wholesalers to make bread, it can be fermented into beer and waste can be used as animal feed,” says Prof Frikkie Neser, Head of the Department of Animal Sciences. He is the convenor of this initiative, along with the Dean of the Faculty of Natural and Agricultural Sciences, Prof Danie Vermeulen.

Currently, eight departments in four of the faculties at the UFS are involved in the work on the experimental farm. 

Natural products in the dairy processing unit

Dr Analie Hattingh, Manager of the dairy processing unit and Lecturer in the Department of Animal Science, is responsible for the entire production process in the dairy processing unit, from concept development up to sales. Since the installation of the unit started in May 2021, two lines of cheese have been produced – a delicious semi-hard, full-cream all-rounder, and a more exotic cheese with different flavours, containing ingredients such as cumin, chili, garlic, peppercorns, and mango. The Department of Sustainable Food Systems and Development (CENSARD) will later cultivate and harvest some of these herbs in the tunnels on the experimental farm. The department will also be involved in product development.

More recently, Dr Hattingh also started to investigate the development of a yoghurt line with different flavours – the more traditional mixed fruit and strawberry, as well as more exciting flavours such as pear caramel.   

“All our products are natural,” she says. 

This initiative adds to the already established centralised infrastructure hub on the experimental farm, which supports wool production and processing. Under the auspices of CENSARD, members from the community are taught, among others, entrepreneurial skills in different aspects of wool processing, such as knitting, making felt products, spinning, and weaving. 

The group of women in the wool processing unit is producing, among others, felt pencil cases, laptop bags, hand/
bookbags, tray cloths, and soft toys. 
Photo: Leonie Bolleurs. 

Creating products from dairy and wool is not only contributing to job creation; it also empowers communities to create a sustainable livelihood for themselves.

Award-winning beer 

Award-winning beer makers Dr Errol Cason, Senior Lecturer in the Department of Animal Science, and Dr Christopher Rothmann, postdoctoral research fellow in the Department of Animal Sciences, are looking forward to opening a fermentation institute on the Paradys Experimental Farm. 

With their background as microbiologists, the two founders of Liquid Culture (in 2018) produced commercial batches of yeast used mainly by breweries for the fermentation of beer. They are supplying Bloemfontein as well as several breweries nationwide with their quality yeast. 

At the fermentation institute on the farm, these home brewers and owners of Kraft Brewing Co hope to not only continue brewing bear, but to also teach others about the fermentation process. Installation of the vessels, which were previously part of the South African Brewery’s World of Learning, is almost complete.

Dr Errol Cason, Dr Christopher Rothmann, and Barry Crous
Dr Errol Cason, Dr Christopher Rothmann, and Barry Crous at what will soon be a fermentation institute on
the Paradys Experimental Farm. 
Photo: Leonie Bolleurs

Entrepreneur science park 

Prof Neser says they are also in the process of constructing an entrepreneur (science) park for students in the sciences. Upon completion, the park will boast nine containers with the necessary infrastructure for students to work on innovation projects – promoting an entrepreneurial culture at the UFS. 

The farm will also provide a service to the agriculture industry by testing feed intake and growth rate in cattle, evaluating these animals’ efficiency in converting feed to body mass. Prof Neser says the UFS is the only university conducting these tests on cattle. Similar trials will also be conducted on sheep, in collaboration with BKB, ALPHA, and RFID.

Grass has been planted in the open areas, and trees and tables with benches are planned to create a welcoming space for school groups to visit during the week in order to learn about the wool and dairy value chain. Members of the community will also be invited to display and sell their products on Saturdays, along with the goods produced on the farm. The scene is set, and soon all projects will benefit not only UFS staff and students, but also the community.

Dr Analie Hattingh is constantly looking at developing
new products for the dairy processing 
unit. Here she
i
s testing feta cheese. 


News Archive

UFS researcher engineers metal surfaces
2015-03-03

Shaun Cronjé, a PhD student, in a surface characterisation laboratory at the UFS.

It is well known that the surface of a component is much more vulnerable to damage than the interior, and that surface-originated degradation such as wear, corrosion, and fracture will eventually destroy the component.

“Engineering the surface, based on scientific knowledge, is essential to control these damaging processes. It also creates electronic and geometric structures on the surface which opens up a world of new devices, especially considering the properties on the nano-length scale,” said Prof Wiets Roos from the Department of Physics at the University of the Free State (UFS).

At elevated temperatures, atoms are more mobile and can migrate to grain boundaries and surfaces, which have a major influence on material properties. The redistribution of solute atoms between the surface and the bulk of the material is known as segregation. Knowing the behaviour of segregation at the surface/environment interface can be very useful in the development of new materials. As an example materials can be improved higher efficiency and lower fuel consumption, thus reducing environmental pollution.

The main aims of Prof Roos’s research are to understand surface segregation, use it as a tool, and contribute to the various surface engineering fields.

The surface characterisation laboratories at the UFS are well equipped to do high temperature segregation measurements, and have already proven a success, not only in the ability to prepare the specimens for characterisation, but also in developing models and procedures to quantify the segregation parameters.

The most recent results have demonstrated the importance of taking evaporation into account during quantification.” This has laid the foundation for future studies by installing the necessary hardware in a surface characterisation spectrometer, establishing experimental protocols, and improving an existing model (developed in this laboratory) for simulating segregation profiles,” said Prof Roos.

Segregation parameters allow the researcher to predict and utilise the surface concentration behaviour as a function of temperature and time. “This not only contributes to fields involving corrosion, oxidation, sintering, wear, chemical poisoning, powder metallurgy, and lubrication but adds to the development of self-healing devices,” said Prof Roos.

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