Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
26 February 2020 | Story Leonie Bolleurs
Vegetable tunnels
Two vegetable tunnels were recently established on the UFS Bloemfontein Campus to contribute to the fight against food insecurity.

Food insecurity is a problem on university campuses worldwide. The three campuses of the University of the Free State (UFS) are not exempt from this plight. Research findings indicate that more than 64% of students at the university go through periods of hunger.

Annelize Visagie, , from the Division of Student Affairs who is heading the Food Environment Office at the UFS, confirms that food insecurity at higher education institutions is not a new phenomenon.

In a study with first-year students as focus, Visagie found that academic performance declines and coping mechanisms increase as the severity of food insecurity increases.

“Students use different coping mechanisms, with an alarming percentage of students (40,6%) using fasting as an excuse to friends for not having food, 60% of students skipping meals because they do not have enough money, and 43,2% of students being too embarrassed to ask for help.”

Visagie states that various factors contribute to this alarming scenario, with the main reason being that the majority of students come from impoverished economic and social circumstances. This suggests that although students receive NSFAS funding or any other bursary, it is not a guarantee that they are food secure.

Focus on student wellbeing
Aligning with the UFS strategic goal of improving student success and wellbeing, UFS staff is working hard to implement initiatives and obtain sponsorships and food donations to ensure that students do not go hungry.

Members of the university’s Food Environment Project, Drs Johan van Niekerk and JW Swanepoel from the Centre for Sustainable Agriculture, Rural Development and Extension (CENSARDE), and Karen Scheepers from the Division of Student Affairs who is heading KovsieAct partnered to move the existing vegetable tunnels on the UFS experimental farm to the Bloemfontein Campus.

The construction of the tunnels and boxes was financed by Tiger Brands. Professor Michael Rudolph and Dr Evans Muchesa who are involved with the Siyakhana Food Gardens, assisted with the training of students and consultation throughout the project.

The two tunnels (30 m x 10 m each) are covered with netting, and two water tanks with pumps are fitted to provide the necessary irrigation.

Vegetables add value
Dr Swanepoel explains: “In each tunnel there are 20 raised wooden boxes. Each residence received one box where they planted one type of vegetable crop, including Swiss chard, cabbage, carrots, beet, kale, and broccoli.”

Residence Committee members from all on- and off-campus student communities in civic and social-responsibility portfolios, as well as civic and social-responsibility student associations, received the necessary training to plant vegetables.

The vegetables were planted in mid-February and the first harvest is expected around mid-April.

This initiative, which will help students in the near future to keep the hunger pangs at bay in a healthy way, adds to the existing No Student Hungry programme. Visagie says it is important for the university to assist students in making healthy choices and to educate them on decisions to secure nutritional food for themselves.

In addition, the university also received food parcels from Rise Against Hunger, together with donations from organisations such as Gift of the Givers – providing 200 food parcels to students on the Qwaqwa Campus, and the recent donation from Tiger Brands – providing 500 food parcels to students.

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
 

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept