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18 March 2022 | Story Dr Chantell Witten | Photo Supplied
Dr Chantell Witten is from the Division Health Science Education, Faculty of Health Sciences, at the University of the Free State

Opinion article by Dr Chantell Witten, Division Health Science Education, Faculty of Health Sciences, University of the Free State (UFS). 
As we count down to Human Rights Day commemorated annually on 21 March, we are acutely aware of the failures of the state to realise and satisfy the human rights enshrined in our Constitution and Bill of Rights, especially for children.
Since the dawn of democracy in South Africa in 1994 the country has struggled with a persistent high level of child malnutrition measured as stunting, when children are too short for their age.  This is not just shortness of height but it is a proxy for compromised health and a risk factor for lower cognitive development, lower education attainment and lower future productivity both in work output and in earning capabilities. Unhealthy children are likely to be our future unhealthy adults and compromised human development.

Protect children from hunger

It is for this reason that all efforts must be explored to protect children from hunger. Since the outbreak of the COVID-19 pandemic more than two years ago, there have been huge negative impacts on global health and development which are bearing down on the youngest members of the planet, our children. These impacts on children are costing their lives now and well into the future. South Africa has the largest social protection programme for children on the African continent with a child support grant that benefits more than 12 million children under the age of 18 years. On 23 February 2022, Finance Minister Enoch Godongwana announced that the child support grant would increase from R460 to R480 per month as from 1 April. A mere 4% increase, against a year-on-year food and non-alcoholic beverages inflation of 5.5%, rendering the already measly child support grant ineffective to keep hunger at bay, much less to address the nutrition that children need to grow and be healthy. In Section 28 of the Bill of Rights in our Constitution states that “every child has the right to basic nutrition, shelter, health care and social services, as well as the right to be protected from maltreatment, neglect, abuse or degradation”. But the high levels of child malnutrition, almost one in three children are stunted, while one in four households reported child hunger. This is a result of the failure to protect children.

One of South Africa’s leading civil society organisations, the Black Sash, undertook research with the South African Medical Research Council to explore how households receiving the child support grant managed with respect to food procurement and dietary patterns. I was approached to assist with child nutrition data interpretation and policy implications. It was not surprising to find that all 12 households included in this qualitative study were not able to cope or meet their food needs. These households’ food purchasing patterns were insufficient in quantity and in dietary quality. All household members were not able to eat regularly or sufficiently to keep hunger at bay. Even for children, hunger was a norm. Even for a household of a single mother and her five-year-old child, the child support grant was not enough to buy enough food, and other essentials like electricity, toiletries and cleaning materials. This was a huge cause for concern, given the context of COVID and the need to wash hands and surfaces regularly.

Trauma of  caregivers to provide food

The nutrition evaluation of the foods that were purchased was lacking in diversity, nutrient-density and low-quality foods, raising the issue of food safety as well. Poor households dependent on the child support grant, even with multiple grants, was not enough to buy enough food for all the household members. Many adults are forced to go without meals or reduce the amount of food they eat and to rely on food relief efforts like soup kitchens, food packs and food charity. The most heart-wrenching finding is the constant experience of trauma faced by caregivers to provide food for their hungry children. Caregivers expressed feelings of shame and guilt knowing that their children are hungry, for sending their children to ask for food from neighbours and community members. The constant cries for food would drive caregivers to ‘hit the children and send them to bed’. Sleeping is an escape from hunger and having to deal with hunger. These households are under severe psychological strain, re-emphasising that hungry people are angry people. This is not conducive for optimal child care and highlights hunger as a driver of child ‘maltreatment, neglect, abuse or degradation’ as listed in the Bill of Rights.

While caregivers are resourceful in trying to stretch the food budget by buying cheaper, smaller quantities of food products, giving small children many smaller snack foods and taking cash loans to buy foods, these efforts do not shield or protect children from the physical and psychological harm of hunger. A whole-of-society response is needed to create more provision efforts like community out-reach kitchens, food drives and donations, macro-policy initiatives to subsidise food for grant recipients, promotion and support of food gardens and to push government to institute a Basic Income Grant for unemployed persons 18-59 years of age. The child support grant is not enough to protect children from chronic hunger which itself is ‘maltreatment, neglect, abuse or degradation’ as enshrined in the South African Bill of Rights.

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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