Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
15 February 2021 | Story Leonie Bolleurs | Photo istock
The Faculty of Natural and Agricultural Sciences has reorganised three of its departments, and as a result the Departments of Animal Science, Microbiology and Biochemistry, and Sustainable Food Systems and Development have been established.

In a continuous effort to inspire excellence and transform lives, the Faculty of Natural and Agricultural Sciences at the University of the Free State (UFS) has reorganised three of its departments. The entities that were affected include what was known as the Department of Consumer Science; the Department of Animal, Wildlife and Grassland Sciences; and the Division of Food Science.

The Department of Animal, Wildlife and Grassland Sciences has changed to Animal Science, while the Department of Consumer Science and the Centre for Sustainable Agriculture, Rural Development, and Extension (CENSARDE) merged to become the Department of Sustainable Food Systems and Development.

Sustainable food systems

Both the Department of Consumer Science and CENSARDE are major contributors to studies on food systems. According to Prof Johan van Niekerk, Head of the new Department of Sustainable Food Systems and Development, the two academic entities create a natural link that provides the potential for training, development, and research from a food systems perspective to benefit the local and national agri-business sector. 

Prof van Niekerk elaborates: “Food systems can be defined as the processes involved in providing food, fibre, and fuel products. These processes include growing, harvesting, processing, preparing, packaging, transporting, marketing, consumption, and waste management.”

“In terms of the academic structure at the UFS, the processing, preparing, and packaging of food resided within the Department of Consumer Sciences. The processes of growing, harvesting and food production, on the other hand, resided within the Centre for Sustainable Agriculture. The newly established Department of Sustainable Food Systems and Development holds the potential to combine the academic expertise of two separate entities into an interdisciplinary body that focuses on sustainable food systems from a holistic perspective.”

Relevant on a global scale

According to Prof Frikkie Neser, Head of the now Department of Animal Science, it is a worldwide phenomenon that Animal Science and all its related disciplines are classified under the name Animal Science.

As part of the changes in this discipline, Meat Science, Dairy Science, and Wool Science will again be presented within the department. Meat scientist, Prof Arno Hugo, and dairy scientist, Dr Koos Myburgh, and their support staff also joined the department. 

According to Prof Neser, the changes will also lead to the establishment of a Meat and Dairy Unit, an Animal Breeding Genomics and Bioinformatics Unit (ABGB), and a Dairy Processing Unit. The latter will be hosted on the Paradys Experimental Farm outside Bloemfontein.

Prof Neser says that changes to the department will simplify the curriculum without compromising the quality of the content or the professional registration of Animal Science students.

“Students will be exposed to the full value chain in meat, dairy, and wool, and research and product development can be conducted in our own fully equipped facilities,” says Prof Neser.

The changes will also lead to a better service to the industry. “Quality as well as chemical and microbial composition of meat will be tested for the whole meat industry. A similar service will also be provided for the dairy industry,” he says.

“A consulting service will also be available,” adds Prof Neser.

Furthermore, he says that the ABGB Unit will provide a statistical and analytical service to the university and the industry. “With the unit, it is possible to create a research facility that can coordinate and enhance all animal breeding research in the country, which will help South Africa to remain relevant on a global scale.”

As much as it will have a global footprint, the department will also add value on a local basis by presenting short courses in all disciplines for both commercial and emerging farmers, as well as the community as a whole.

“We will also continue to build on relationships with other universities, research and government institutions,” says Prof Neser.

Changes to Division of Food Science 

Another significant change that took place in the faculty was in the Division of Food Science. With the changes taking place in the Division of Food Science, the Department of Microbial, Biochemical and Food Biotechnology is now known as the Department of Microbiology and Biochemistry.

News Archive

Research on cactus pear grabs attention of food, cosmetic and medical industry
2015-02-18

Cactus pear
Photo: Charl Devenish

The dedicated research and development programme at the UFS on spineless cactus pear (Opuntia ficus-indica) – also known as prickly pear – has grown steadily in both vision and dimension during the past 15 years. Formal cactus pear research at the UFS started with the formation of the Prickly Pear Working Group (PPWG) in June 2002. It has since gone from strength to strength with several MSc dissertations and a PhD thesis as well as popular and scientific publications flowing from this initiative.

According to Prof Wijnand Swart from the Department of Plant Sciences, the UFS is today recognised as a leading institution in the world conducting multi-disciplinary research on spineless cactus pear.

Cactus pear for animal feed

Increasing demands on already scarce water resources in South Africa require alternative sources of animal feed – specifically crops that are more efficient users of water. One alternative with the potential for widespread production is spineless cactus pear. It is 1.14 x more efficient in its use of water than Old man saltbush, 2.8 x more efficient than wheat, 3.75 x more efficient than lucerne and 7.5 x more efficient than rangeland vegetation.

“Studies on the use of sun-dried cactus pear cladodes suggest that it has the potential to provide some 25% of the basic feed resources required by South Africa’s commercial ruminant feed manufacturing sector,” says Prof HO de Waal of the Department of Animal, Wildlife and Grassland Sciences at the UFS.

Until recently, research has focused extensively on the use of cactus pear as drought fodder. However, this is now beginning to shift, with growing interest in the intensive production of spineless cactus pear for other types of animal feed. One example is the spineless cactus pear fruit, produced seasonal, yielding large quantities of fruit in a relatively short period of a few months in summer. Unless kept in cold storage, the fruit cannot be stored for a long period. Therefore, a procedure was developed to combine large volumes of mashed cactus pear fruit with dry hay and straw and preserve it for longer periods as high moisture livestock feed, kuilmoes – a high water content livestock feed similar to silage.

Cactus pear and Pineapple juice
Photo: Charl Devenish

Cactus pear for human consumption

“In addition to its use as a livestock feed, cactus pear is increasingly being cultivated for human consumption. Although the plant can be consumed fresh as a juice or vegetable, significant value can be added through processing. This potential is considerable: the plant can be pickled; preserved as a jam or marmalade; or dried and milled to produce baking flour. It can also serve as a replacement of egg and fat in mayonnaise,” said Dr Maryna de Wit from the Department of Microbial, Biochemical and Food Biotechnology.

The extraction of mucilage from fresh cladodes can form a gelling, emulsifier, and fat-replacing agent commonly found in food products such as mayonnaise and candy. During an information session to the media Dr De Wit and her team conducted a food demonstration to showcase the use of the cladodes in a juice, chicken stir-fry, biscuits and a salad.

The extrusion of cactus pear seed oil provides a further lucrative niche product to the array of uses. These include high-value organic oil for the cosmetic sector, such as soap, hair gel and sun screens.

The cladodes and the fruit also have medicinal uses. It has anti-viral, anti-inflammatory, pain killing and anti-diabetic agents. It is also high in fibre and can lower cholesterol. The fruit also prevents proliferation of cells and suppresses tumour growth and can even help to reduce a hangover.

In South Africa the outdated perception of cactus pears as thorny, alien invaders, is rapidly disappearing. Instead, farmers now recognise that cactus pear can play a vital role as a high yielding, water-efficient, multi-use crop, said Prof de Waal and the members of the Cactus Pear Team.

Facebook photo gallery
Dagbreek interview with Dr Maryna de Wit  

Research on cactus pear (read the full story)

For more information or enquiries contact news@ufs.ac.za

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