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17 June 2020 | Story Andre Damons | Photo Supplied
Food parcels
Annelize Visagie (Food Environment Office, with the black mask), Belinda Janeke (Career Services) and Angelo Mockie (Art, Culture and Dialogue Office) from the Division Student Affairs (DSA) busy preparing food parcels in the storeroom at the Thakaneng Bridge
Between 40 and 50 students from the University of the Free State (UFS) in Bloemfontein receive daily food parcels during the lockdown, thanks to the cooperation between the Food Environment Office at the UFS, Tiger Brands, and the Total Garage in Brandwag.

Annelize Visagie from the Division of Student Affairs (DSA), who is heading the Food Environment Office at the UFS, says just before the national lockdown started in March, they signed a Memorandum of Understanding (MOU) with Tiger Brands to sponsor 500 food parcels to students who do not have bursaries. This is part of the UFS strategic goal of improving student success and wellbeing. UFS staff is working hard to implement initiatives and obtain sponsorships – such as this one with Tiger Brands – as well as food donations to ensure that students do not go hungry.

“Then the lockdown happened. However, the project continued, with Tiger Brands still sponsoring food parcels. Students email me and I respond to those emails. We are also looking at including students from the South Campus in the project.”

“I deliver the food parcels to the Total Garage across from the campus, where students collect it. We give between 40 and 50 parcels every day and have helped 650 students thus far. These parcels cost Tiger Brands R80 000 a month. We also provide students with vegetables from vegetable tunnels on campus,” says Visagie.

Visagie says the cooperation between the outside companies, the UFS, and even staff and students who volunteer, is heart-warming to see especially during this time of crisis. So is the gratitude from the students. They are also in discussions with the humanitarian organisation Gift of the Givers to provide 200 food parcels to needy students from next month.

“We have a supply chain going on in the storeroom at the Thakaneng Bridge. It is great to see how staff members and students jumped in to help us pack the parcels. We have permits and more students want to help, but they can’t get onto campus at this time. We would not be able to do this without the help of Tiger Brands and the Total Garage.”  

The DSA Food Environment Office is also collaborating with senior management on the UFS Qwaqwa and South campuses to distribute food parcels on these two campuses.

News Archive

Nanotechnology breakthrough at UFS
2010-08-19

 Ph.D students, Chantel Swart and Ntsoaki Leeuw


Scientists at the University of the Free State (UFS) made an important breakthrough in the use of nanotechnology in medical and biological research. The UFS team’s research has been accepted for publication by the internationally accredited Canadian Journal of Microbiology.

The UFS study dissected yeast cells exposed to over-used cooking oil by peeling microscopically thin layers off the yeast cells through the use of nanotechnology.

The yeast cells were enlarged thousands of times to study what was going on inside the cells, whilst at the same time establishing the chemical elements the cells are composed of. This was done by making microscopically small surgical incisions into the cell walls.

This groundbreaking research opens up a host of new uses for nanotechnology, as it was the first study ever in which biological cells were surgically manipulated and at the same time elemental analysis performed through nanotechnology. According to Prof. Lodewyk Kock, head of the Division Lipid Biotechnology at the UFS, the study has far reaching implications for biological and medical research.

The research was the result of collaboration between the Department of Microbial, Biochemical and Food Biotechnology, the Department of Physics (under the leadership of Prof. Hendrik Swart) and the Centre for Microscopy (under the leadership of Prof.Pieter van Wyk).

Two Ph.D. students, Chantel Swart and Ntsoaki Leeuw, overseen by professors Kock and Van Wyk, managed to successfully prepare yeast that was exposed to over-used cooking oil (used for deep frying of food) for this first ever method of nanotechnological research.

According to Prof. Kock, a single yeast cell is approximately 5 micrometres long. “A micrometre is one millionth of a metre – in laymen’s terms, even less than the diameter of a single hair – and completely invisible to the human eye.”

Through the use of nanotechnology, the chemical composition of the surface of the yeast cells could be established by making a surgical incision into the surface. The cells could be peeled off in layers of approximately three (3) nanometres at a time to establish the effect of the oil on the yeast cell’s composition. A nanometre is one thousandth of a micrometre.

Each cell was enlarged by between 40 000 and 50 000 times. This was done by using the Department of Physics’ PHI700 Scanning Auger Nanoprobe linked to a Scanning Electron Microscope and Argon-etching. Under the guidance of Prof. Swart, Mss. Swart en Leeuw could dissect the surfaces of yeast cells exposed to over-used cooking oil. 

The study noted wart like outgrowths - some only a few nanometres in diameter – on the cell surfaces. Research concluded that these outgrowths were caused by the oil. The exposure to the oil also drastically hampered the growth of the yeast cells. (See figure 1)  

Researchers worldwide have warned about the over-usage of cooking oil for deep frying of food, as it can be linked to the cause of diseases like cancer. The over-usage of cooking oil in the preparation of food is therefore strictly regulated by laws worldwide.

The UFS-research doesn’t only show that over-used cooking oil is harmful to micro-organisms like yeast, but also suggests how nanotechnology can be used in biological and medical research on, amongst others, cancer cells.

 

Figure 1. Yeast cells exposed to over-used cooking oil. Wart like protuberances/ outgrowths (WP) is clearly visible on the surfaces of the elongated yeast cells. With the use of nanotechnology, it is possible to peel off the warts – some with a diameter of only a few nanometres – in layers only a few nanometres thick. At the same time, the 3D-structure of the warts as well as its chemical composition can be established.  

Media Release
Issued by: Mangaliso Radebe
Assistant Director: Media Liaison
Tel: 051 401 2828
Cell: 078 460 3320
E-mail: radebemt@ufs.ac.za  
18 August 2010
 

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