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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 physicists publish in prestigious Nature journal
2017-10-16

Description: Boyden Observatory gravitational wave event Tags: Boyden Observatory, gravitational wave event, Dr Brian van Soelen, Hélène Szegedi, multi-wavelength astronomy 
Hélène Szegedi and Dr Brian van Soelen are scientists in the
Department of Physics at the University of the Free State.

Photo: Charl Devenish

In August 2017, the Boyden Observatory in Bloemfontein played a major role in obtaining optical observations of one of the biggest discoveries ever made in astrophysics: the detection of an electromagnetic counterpart to a gravitational wave event.
 
An article reporting on this discovery will appear in the prestigious science journal, Nature, in October 2017. Co-authors of the article, Dr Brian van Soelen and Hélène Szegedi, are from the Department of Physics at the University of the Free State (UFS). Both Dr Van Soelen and Szegedi are researching multi-wavelength astronomy.
 
Discovery is the beginning of a new epoch in astronomy
 
Dr van Soelen said: “These observations and this discovery are the beginning of a new epoch in astronomy. We are now able to not only undertake multi-wavelength observations over the whole electromagnetic spectrum (radio up to gamma-rays) but have now been able to observe the same source in both electromagnetic and gravitational waves.”
 
Until recently it was only possible to observe the universe using light obtained from astronomical sources. This all changed in February 2016 when LIGO (Laser Interferometer Gravitational-Wave Observatory) stated that for the first time they had detected gravitational waves on 14 September 2015 from the merger of two black holes. Since then, LIGO has announced the detection of two more such mergers. A fourth was just reported (27 September 2017), which was the first detected by both LIGO and Virgo. However, despite the huge amount of energy released in these processes, none of this is detectable as radiation in any part of the electromagnetic spectrum. Since the first LIGO detection astronomers have been searching for possible electromagnetic counterparts to gravitational wave detections. 
 
Large international collaboration of astronomers rushed to observe source
 
On 17 August 2017 LIGO and Virgo detected the first ever gravitational waves resulting from the merger of two neutron stars. Neutron star mergers produce massive explosions called kilonovae which will produce a specific electromagnetic signature. After the detection of the gravitational wave, telescopes around the world started searching for the optical counterpart, and it was discovered to be located in an elliptical galaxy, NGC4993, 130 million light years away. A large international collaboration of astronomers, including Dr Van Soelen and Szegedi, rushed to observe this source.
 
At the Boyden Observatory, Dr Van Soelen and Szegedi used the Boyden 1.5-m optical telescope to observe the source in the early evening, from 18 to 21 August. The observations obtained at Boyden Observatory, combined with observations from telescopes in Chile and Hawaii, confirmed that this was the first-ever detection of an electromagnetic counterpart to a gravitational wave event. Combined with the detection of gamma-rays with the Fermi-LAT telescope, this also confirms that neutron star mergers are responsible for short gamma-ray bursts.  
 
The results from these optical observations are reported in A kilonova as the electromagnetic counterpart to a gravitational-wave source published in Nature in October 2017.
 
“Our paper is one of a few that will be submitted by different groups that will report on this discovery, including a large LIGO-Virgo paper summarising all observations. The main results from our paper were obtained through the New Technology Telescope, the GROND system, and the Pan-STARRS system. The Boyden observations helped to obtain extra observations during the first 72 hours which showed that the light of the source decreased much quicker than was expected for supernova, classifying this source as a kilonova,” Dr Van Soelen said.

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