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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

Postgraduate student to conduct research on maize quality at Michigan State University
2017-03-27

Description: Student maze research Tags: Student maze research

Schae-Lee Olckers, master’s student in the
Department of Microbial Biochemical and
Food Biotechnology.
Photo: Supplied

Schae-Lee Olckers, a master’s student in the Department of Microbial Biochemical and Food Biotechnology at the University of the Free State (UFS), will be travelling to the US in a few weeks’ time. For the next two years she will be doing research at the Michigan State University (MSU) at its Department of Food Science, working on wheat quality and its baking properties.

Increase the nutritional value of maize
The title of her master’s research project is: “The influence of low and optimal nitrogen conditions on the nutritional value of quality protein maize”. She is focusing on the influence of environmental conditions on the nutritional value of maize.

New hybrids of maize production developed

Olckers said: “I chose to start my research on this specific topic in my honours year because maize is the main staple crop in South Africa, as well as in the rest of Africa. Therefore, micronutrient malnutrition is a major concern for developing countries as well as for poor people who rely on it as a major food source. I found it interesting that these breeding programmes that are being developed for new hybrids of maize for production are focusing on increasing the nutritional value of maize and can therefore help eliminate micronutrient malnutrition in some populations of poor communities,” she said.

Prof Perry Ng will be her research supervisor. He is an affiliated professor at UFS in the division of Plant Breeding. “I am very excited about the opportunity to travel and to gain experience working with a well-known cereal scientist. The work he does is also closely associated with my research,” said Olckers.

Her supervisors at UFS are Profs Garry Osthoff and Maryke Labuschagne from the Departments of Microbial Biochemical and Food Biotechnology and Plant Sciences respectively.

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