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25 June 2020 | Story Leonie Bolleurs | Photo Supplied
Prof Arno Hugo recently participated in a session on food with integrity during a webinar by the Integra Trust, where he presented a lecture focusing on the importance of food traceability and the information communicated to the consumer.

In the complete process between farm and fork, consumers are looking for someone to hold accountable if their animal welfare, product quality, and product safety expectations are not met.

On World Sustainable Gastronomy Day earlier this month (18 June 2020), Prof Arno Hugo from the Department of Microbial, Biochemical and Food Biotechnology’s Food Science division at the University of the Free State (UFS) participated in a webinar by the Integra Trust, titled Heal the Land, Heal the People.

The Integra Trust was established to advance climate-smart sustainable and regenerative agriculture. It values the production, distribution, and utilisation of food with integrity in order to heal the land and the people.

Integra Trust strives to promote agriculture that has a limited footprint on the environment.

Prof Hugo’s lecture during the session on food with integrity, focused on the importance of the traceability of food and the information communicated to the consumer. 

Physical and emotional connectedness to farm and the producer
According to him, modern consumers want to know where their food comes from and want to be physically and emotionally connected to the farm and the producer. In the case of meat, for example, they want to know if the meat they buy is ethically produced and whether the animal was treated in a humane manner during the slaughter process. They also want a guarantee that the food they buy is free of harmful substances.

Prof Hugo states: “The consumer’s need for origin-based food is now playing out in a variety of ways, as food processors and retailers are labelling their products according to the origin of the product. One way of achieving this, is through a good traceability system.”

In his presentation, he focused on traceability from a meat industry perspective.

“Thus, in a good traceability system, a product on the store shelf can easily be traced back to the farmer and the farm where the food was originally produced. In modern traceability systems, it is even possible for the consumer to take the product in the store to a scanner that can read the ‘barcode’ and then showing a photo of the farmer and the name and location of the farm where it was produced,” explains Prof Hugo.

Food traceability important from food safety point of view
“Despite the consumer’s emotional need to connect with the farm and the producer, food traceability is also extremely important from a food security and food safety point of view,” he adds.

Although in its simplest form, it is a comprehensive process of keeping record of suppliers and customers in order to allow reconstruction of the product chain in case of need, it is doable. “In Europe, some 25 million cattle per year are now slaughtered with full traceability. The challenge of providing a secure form of identity through this process, is therefore a formidable one. This is achieved with the use of modern technologies such as Blockchain and DNA technology,” explains Prof Hugo. 

Joining him in the session on food with integrity were, among others, Errieda du Toit, chef, food writer, and culinary commentator (talking about perceptions in terms of difference between fast food and story food, asking if it is driven by social media) and Christiaan Campbell, chef and food consultant (talking about achieving synergy and communication between producer and consumer via the food value chain). Steven Barnard of Farmer Kidz presented a session focused on the younger generation, focusing on why it is important to connect children with food production.

News Archive

New world-class Chemistry facilities at UFS
2011-11-22

 

A world-class research centre was introduced on Friday 18 November 2011 when the new Chemistry building on the Bloemfontein Campus of the University of the Free State (UFS) was officially opened.
The upgrading of the building, which has taken place over a period of five years, is the UFS’s largest single financial investment in a long time. The building itself has been renovated at a cost of R60 million and, together with the new equipment acquired, the total investment exceeds R110 million. The university has provided the major part of this, with valuable contributions from Sasol and the South African Research Foundation (NRF), which each contributed more than R20 million for different facets and projects.
The senior management of Sasol, NECSA (The South African Nuclear Energy Corporation), PETLabs Pharmaceuticals, and visitors from Sweden attended the opening.

Prof. Andreas Roodt, Head of the Department of Chemistry, states the department’s specialist research areas includes X-ray crystallography, electrochemistry, synthesis of new molecules, the development of new methods to determine rare elements, water purification, as well as the measurement of energy and temperatures responsible for phase changes in molecules, the development of agents to detect cancer and other defects in the body, and many more.

“We have top expertise in various fields, with some of the best equipment and currently competing with the best laboratories in the world. We have collaborative agreements with more than twenty national and international chemistry research groups of note.

“Currently we are providing inputs about technical aspects of the acid mine water in Johannesburg and vicinity, as well as the fracking in the Karoo in order to release shale gas.”

New equipment installed during the upgrading action comprises:

  • X-ray diffractometers (R5 million) for crystal research. Crystals with unknown compounds are researched on an X-ray diffractometer, which determines the distances in angstroms (1 angstrom is a ten-billionth of a metre) and corners between atoms, as well as the arrangement of the atoms in the crystal, and the precise composition of the molecules in the crystal.
  • Differential scanning calorimeter (DSC) for thermographic analyses (R4 million). Heat transfer and the accompanying changes, as in volcanoes, and catalytic reactions for new motor petrol are researched. Temperature changes, coupled with the phase switchover of fluid crystals (liquid crystals -watches, TV screens) of solid matter to fluids, are measured.
  • Nuclear-magnetic resonance (NMR: Bruker 600 MHz; R12 million, one of the most advanced systems in Africa). A NMR apparatus is closely linked with the apparatus for magnetic resonance imaging, which is commonly used in hospitals. NMR is also used to determine the structure of unknown compounds, as well as the purity of the sample. Important structural characteristics of molecules can also be identified, which is extremely important if this molecule is to be used as medication, as well as to predict any possible side effects of it.
  • High-performance Computing Centre (HPC, R5 million). The UFS’ HPC consists of approximately 900 computer cores (equal to 900 ordinary personal computers) encapsulated in one compact system handling calculations at a billion-datapoint level It is used to calculate the geometry and spatial arrangements, energy and characteristics of molecules. The bigger the molecule that is worked with, the more powerful the computers must be doing the calculations. Computing chemistry is particularly useful to calculate molecular characteristics in the absence of X-ray crystallographic or other structural information. Some reactions are so quick that the intermediary products cannot be characterised and computing chemistry is of invaluable value in that case.
  • Catalytic and high-pressure equipment (R6 million; some of the most advanced equipment in the world). The pressures reached (in comparison with those in car tyres) are in gases (100 times bigger) and in fluids (1 500 times) in order to study very special reactions. The research is undertaken, some of which are in collaboration with Sasol, to develop new petrol and petrol additives and add value to local chemicals.
  • Reaction speed equipment (Kinetics: R5 million; some of the most advanced equipment in the world). The tempo and reactions can be studied in the ultraviolet, visible and infrared area at millisecond level; if combined with the NMR, up to a microsecond level (one millionth of a second.

Typical reactions are, for example, the human respiratory system, the absorption of agents in the brain, decomposition of nanomaterials and protein, acid and basis polymerisation reactions (shaping of water-bottle plastic) and many more.

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