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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

Three UFS researchers attend cactus pear congress
2017-05-05

Description: Dr de Wit Cactus pear 2 Tags: Dr de Wit Cactus pear 2

Dr Maryna de Wit, one of the
UFS delegation team was appointed
coordinator for Agro-Processing
and Post-Harvest Technology during
the congress

Description: Dr du Toit Cactus Pear 2 Tags: Dr du Toit Cactus Pear 2

Dr Alba du Toit, also one of the members
of the UFS delegation during the
congress at the University of Chile
in Santiago, Chile.
Photos: Supplied





Dr Alba du Toit, a junior lecturer in Consumer Science at the University of the Free State (UFS), presented her research at the recent IX International Congress on Cactus Pear and Cochineal at the University of Chile in Santiago, Chile. The congress was themed, “CAM Crops for a Hotter and Drier World”.

Dr Du Toit, Prof HO de Waal and Dr Maryna de Wit, from the Faculty of Natural and Agricultural Sciences at UFS, attended the five-day conference held between 26 and 30 March 2017.

Congress a platform for networking
The congress, held every three years since 1993, gathers cactus pear researchers, growers and processing managers from Europe, the Americas, Asia and Africa to review current research trends by networking to form new collaborations that could lead to increased efficiency and shared knowledge. They also present new findings and plan for future research.

Great achievements for researchers
Dr Du Toit said: “My research on cactus pears focused on the utilisation of the slimy substance found in the cactus cladodes as a functional ingredient in innovative nutraceutical food products”. Functional foods are foods that promote health or prevent disease through adding or omitting specific ingredients. She also received the International Society of Horticultural Science award for best student oral presentation.

Dr De Wit also presented her research and was appointed coordinator for Agro-Processing and Post-Harvest Technology at the congress.

Dr Herman Fouché, Affiliated Researcher at the Department of Soil-, Crop- and Climate Sciences at UFS, developed “kuilmoes”, a type of silage from pulped cactus pear fruit, mixed with lucerne, in collaboration with Prof de Waal, which was also presented.at the congress.

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