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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

UFS leads the way with GMO testing
2003-08-25

A formal agreement linking Africa’s first testing facility for genetically modified organisms (GMO) to an international organization was signed at the University of the Free State.

According to the manager of the GMO testing facility, Dr Chris Viljoen of the Department of Plant Sciences, the facility is now part of GeneScan, a world leader in food diagnostic testing, which has its headquarters in Germany with subsidiaries in the Unites States, Brazil and Hong Kong.

The facility at the UFS has been selected by the second largest international food company to do all its South African GMO testing for export products.

The GMO testing facility is the brainchild of Dr Viljoen, who is a specialist in the field of marker biotechnology and its applications in crop science.

He says the need for such a testing facility arose due to the international regulations on GMOs in food, especially Europe and Asia that requires South African exporters to certify whether their products contain any GMO.

“The regulations in Europe and Asia reflect a consumer need for choice in what they eat due to concerns over the safety of GMOs, as well as environmental and ethical issues. GMO testing and labelling allow consumers the right of choice to eat genetically modified foods or not. According to EU regulations, any product with a GMO content of 1% or higher is labelled as containing GMO.”

According to Dr Viljoen only four products in South Africa are currently GMO. They are white and yellow maize that have been made insect resistant, soya bean that is herbicide tolerant and insect resistant cotton. He says that the awareness of GMOs among South Africans is still very limited, especially in poorer communities, but it is likely to increase with the efforts being made in consumer education by government, seed companies and NGOs.

The testing facility has been established to accommodate the local as well as international market. The GMO testing at the UFS facility is performed using real time PCR, the most advanced means of GMO detection currently available, and using GeneScan developed technology that is recognized worldwide.
 

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