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14 October 2022 | Story Prof Johan van Niekerk, Dr Ismari van der Merwe, and Ms Elzmarie Oosthuizen | Photo Supplied
Sustainable food
World Food Day is celebrated annually on 16 October to promote global awareness and action to uplift those who suffer from hunger and to highlight the need to ensure access to healthy diets for all.

Opinion article by Prof Johan van Niekerk, Dr Ismari van der Merwe, and Ms Elzmarie Oosthuizen, Department of Sustainable Food Systems and Development, University of the Free State.



World Food Day is celebrated annually on 16 October to promote global awareness and action to uplift those who suffer from hunger and to highlight the need to ensure access to healthy diets for all. However, in 2022 we are faced with an ongoing pandemic, conflict, global warming, rising prices, and international tensions. All these factors are affecting global food security. Educators have an enormous task to help students develop skills to help build a sustainable world where everyone has regular access to nutritious food. 

Although we have progressed towards building a better world, many people have been left behind – people who cannot benefit from human development, innovation, or economic growth. Millions of people worldwide cannot afford a healthy diet, putting them at high risk of food insecurity and malnutrition. But ending hunger is not only about supply. Enough food is produced today to feed everyone on the planet. The problem is access and availability of nutritious food. People worldwide are suffering from the domino effects of challenges that know no borders.

Students have insufficient balance for food

South Africa has seen a significant expansion of student enrolment in the higher education system, with nearly one million students attending one of the 26 public universities. The number of students in South Africa's higher education system is far below other middle-income developing countries. Therefore, the government aims to increase university enrolment to 1,5 million by 2030. However, the cost of attending university greatly exceeds the financial means of most students. 
Students must divide their budget between rent, tuition, utilities, and the remaining insufficient balance for food, which ultimately increases their food insecurity risk.
Moreover, the transition of school learners to university students is more complicated than foreseen since lifestyle changes have health implications, where the excitement is combined with stress from pressure to perform well academically in a competitive environment. Research has found that first-year students are exceptionally prone to food insecurity. They have newfound independence and are still learning to cope with the milieu away from home. A study on the Bloemfontein Campus by the Department of Nutrition and Dietetics indicated that students experience considerable problems in managing their tasks, time, and finances. The challenge of reduced social support results in lengthy emotional and physical separation from family and friends, which influences standard eating patterns. The students have poor nutritional knowledge, limited earning potential, and a lack of budgeting skills and resources for healthy food preparation. Finally, sociocultural diversity is another factor to consider. It influences students' food patterns, while the total student population of the UFS, about 37 800 full-time students, reflects a rich sociocultural diversity. 

Intake of vegetables, fruit, and protein among students is minimal

When required to earn a degree, food insecurity represents a short period of time, but it can precipitate poor lifelong health behaviour and increased risks of chronic diseases. Prolonged exposure may contribute to the development of obesity. The research found food insecurity is related to poor mental health and academic performance. Students endorse increased rates of depression and anxiety, decreased concentration, and low concentration marks. It leads to lower academic achievement and undermines the goals of tertiary education. The importance of studying the aspects related to students' sustainable food consumption behaviour lies in the fact that, at this age, they begin to develop specific consumption patterns that will have long-term effects.

The average of current first-year students forms part of Generation Zoomers (ages 19-22 years). Generation Zoomers (Gen Z) grew up in specific circumstances, known as the first truly digital natives. They grew up living, working, and socialising with the internet and social media. This generation's economic circumstances are more constrained. The latter is partly due to the rise in university tuition fees. Gen Z forms part of diverse communities seen as networked young citizens, but growing social inequalities often limit their opportunities. This generation is labelled as the stay-at-home generation, with indoor and online socialising on the rise. 

During a study by the Department of Sustainable Food Systems and Development on the South Campus of the UFS (student population – ages 19-22 years), we found that the intake of vegetables, fruit, and protein among our students is minimal and will lead to deficiencies. At the same time, rice and pasta are part of their everyday diet. Money to buy these foods is still an immense problem. Students indicated that they would prefer healthy foods when they had the resources to afford it.

No Student Hungry initiative

Gender and student consumption patterns showed that breakfast consumption decreased, with male students consuming breakfast more regularly than females. The results indicated that students preferred soft drinks (energy) and water (available). They argued that the high consumption of fast food is due to its wide availability and accessibility in commercial and informal outlets. The informal vendors make fast food more available and accessible to low-budget student groups due to the lower food prices. The unhealthy consumption movement is driven by aggressive advertising practices and lower costs. 

Students consume more saturated fat snacks, refined carbohydrates, sweetened carbonated beverages, and diets that are short in polyunsaturated fatty acids (PUFAs) and fibres. Researchers indicated that these unhealthy diets and the increasingly sedentary lives of students could lead to non-communicable diseases such as type 2 diabetes mellitus and heart disease.

Currently, the department forms part of the NO STUDENT HUNGRY (NSH) initiative by establishing vegetable tunnels on campus. It remains an indispensable objective of the department, though, to increase the proportion of university students who receive information on unhealthy dietary patterns; however, nutrition knowledge has only moderate effects on students' attitudes and behaviours. Therefore, we use our Food Security modules as an effective strategy to educate our student community on sustainable food systems by ensuring skills development. Teaching contextual skills (e.g., how to plan and prepare nutritious meals within time and financial constraints) could address this unhealthy behaviour of the UFS students and work towards the sustainable development goal of NO HUNGER in 2030

News Archive

UFS Physics Research Chair receives more funding
2017-11-20


 Description: Prof Hendrik Swart, Physics Research Chair receives more funding Tags: Prof Hendrik Swart, Physics Research Chair receives more funding

Prof Hendrik Swart, Senior Researcher Professor in the
Department of Physics at UFS.
Photo: Charl Devenish

A research project into low-energy lighting using phosphor materials for light emitting diodes (LEDs) at the Department of Physics at the University of the Free State (UFS) has received further recognition. 

The South African Research Chairs Initiative (SARChi) has awarded further funding for the Research Chair in Solid State Luminescent and Advanced Materials situated in the department. Prof Hendrik Swart, a Senior Research Professor in the Department of Physics, says this means that the Chair will carry on receiving funds from SARChi for another five years. The Initiative also awarded Prof Swart in 2012 for the research, which resulted in funding for equipment and among others, bursaries.    

Better light emission in LED’s
The research focuses on better light emission of phosphor powers in LEDs. It is also looking into improving LED displays in flat screens. The research into solar cells has shown that phosphors can also increase their efficiency by increasing the range of light frequencies, which convert into electricity. It also entails that glow-in-the-dark coatings absorb light during the day and emit it at night. 

Prof Swart says over the next five years the research will focus on developing and producing devices that emit better light using the substances already developed. “We need to make small devices to see if they are better than those we already have.” In practical terms, it means they want a farmer’s water pump that works with solar energy to work better with less energy input.” 

Device that simulates sunlight
Prof Swart says the renewal of the Chair’s funding means the department can now get equipment to enhance its research   such as a solar simulator. The solar simulator uses white LEDs whose intensity output and wavelengths can be tuned. The output is measured in number of suns. It enables researchers to work in a laboratory with a device that simulates sunlight.     

According to Prof Swart the long-term benefit of the research will result in more environmentally friendly devices which use less energy, are brighter and give a wider viewing field. 

About 10 postdoctoral researchers are working on the studies done by the Chair in collaboration with the Council for Scientific and Industrial Research. 

The Research Chair Initiative aims to improve the research capacity at public universities to produce high-quality postgraduate students, research and innovative outputs. The criterion for evaluating the department’s Chair includes aspects such as how much development has occurred over the past five years. The assessors look at features such as the number of students the research entity has trained and how many publications the research team has produced.

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