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03 May 2021 | Story Leonie Bolleurs | Photo Sonia Small
Prof Robert Bragg recently participated in a live panel discussion with leaders from the food and beverage sector, debating the challenges facing the industry and sharing their lessons and solutions.

Prof Robert Bragg from the Department of Microbiology and Biochemistry at the University of the Free State formed part of a live panel discussion with leaders from the food and beverage sector, debating the challenges facing the industry and sharing their lessons and solutions.

The discussion, part of a week-long virtual event (19-23 April), was attended by more than 1 300 attendees representing 500 food manufacturers, retailers, ingredient companies, and laboratories from 83 countries.

The magazine, New Food, coordinated the initiative that focused on food integrity. Speaking with Prof Bragg at the session that centred around animal welfare, zoonotic disease, and antibiotics, were Catherine McLaughlin, Chair, Responsible Use of Medicines in Agriculture (RUMA); Vicky Bond, UK Managing Director, The Humane League; and Daniela Battaglia, Livestock Development Officer, Food and Agriculture Organization of the United Nations (FAO).

The rise of antibiotic resistance

James Russell, President of the British Veterinary Association (BVA), was the moderator of the discussion that also touched on the issues surrounding animal welfare; how animal welfare can impact meat quality; avoiding future zoonotic disease; the rise of antibiotic resistance; ethical considerations to be mindful of; and the use of pesticides and safety considerations.

Prof Bragg specifically talked about antibiotic resistance. “Mankind has major problems with antibiotics,” he said. 

He asked if animal agriculture can be sustained without the use of antibiotics and stated that it was necessary to look at alternatives. Possible solutions he suggested include improved vaccines, bacteriophages, and phage enzymes. He, however, believes that biosecurity will be the most effective alternative. 

Living in a post-antibiotic area

Disinfectants are one of the biosecurity measures taken to minimise the risk of infectious diseases. “But it is important to be aware of the fact that as resistance to antibiotics increases the resistance to disinfectants also increases,” said Prof Bragg. 

He continued: “An increase in the use of disinfectants increases the resistance to disinfectants. This is also evident in humans, especially now during the COVID-19 pandemic. Much of these disinfectants are also of poor quality,” he said. 

According to Prof Bragg, we are living in a post-antibiotic era. “Although food standards are higher in developed countries such as in Europe – where people can pay more for poultry that were fed diets with reduced antibiotics, it is important to keep in mind that people cannot pay the same for poultry in developing countries. These countries often import poultry from countries where the food standards are not that high and where birds were treated to diets containing more antibiotics. A large supplier of poultry in Africa is small-scale farmers, who also feed their birds food containing higher levels of antibiotics.” 

“We need to look at the antibiotic problem as a global problem; a concern that will be with us for a while,” said Prof Bragg.

One solution provided by the group was for mankind to reduce its meat intake and moving to a more plant-based diet. This will have a significant effect on animal welfare as well as reducing the demand for antibiotics.

News Archive

Famous mineralogists visit UFS Geology
2017-04-25

Description: Famous mineralogists visits UFS Geology Tags: Famous mineralogists visits UFS Geology

From the left: Prof Marian Tredoux, Associate
Professor at the UFS Department of Geology;
Prof Giorgio Garuti; from the University of Leoben,
Dr Federica Zaccarini, also from the
University of Leoben and Dr Freddie Roelofse,
Head of the Department of Geology at the UFS.
Photo: Rulanzen Martin


Years of academic friendship and collaboration is what makes Prof Giorgio Garuti and Dr Federica Zaccarini return to the University of the Free State (UFS) every so often.

The world-renowned academic duo from the University of Leoben in Austria were guest lecturers at the UFS Department of Geology. “We are here because we have known Professor Marian Tredoux and the Geology Department, for a long time. We are really happy to be here, and to be given the opportunity to present talks,” said Dr Zaccarini. The two are experts in platinum-group element mineralogy and each has given their surname to minerals namely, the Garutiite and Zaccariniite minerals.

Visit great advantage for research

They are acclaimed experts on very small minerals (smaller than a hundredth of a millimetre) with emphasis on platinum group elements in chrome-rich rocks. “Their visit is a great advantage for us. We also conduct research on these minerals and can learn from them,” said Prof Marian Tredoux, affiliated researcher at the Department of Geology.

Dr Zaccarini gave a lecture on Chromitites, and associated platinum-group elements, in ophiolites on Wednesday 5 April 2017 and Dr Garuti presented a lecture on Uralian-Alaskan complexes: a puzzling source of platinum, on Thursday 6 April 2017. During the talks they examined the association of the platinum-group minerals with chromite, rather than sulphide, and how this association can lead to the formation of unusual platinum-group element ores.

Collaboration on various academic papers

They and Prof Tredoux have collaborated on various research articles over the past four years, which have been published in various important international scientific journals. “These journals play an important role in calculating the H-scale which measures how important a researcher’s work is on an international scale,” said Prof Tredoux.

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