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15 June 2018 Photo Supplied
Kovsies dominate SA students athletics team
Marné Mentz is one of six Kovsie female athletes in the South African student team to the CUCSA Games.

Students of the University of the Free State (UFS) are well represented on the South African student teams for this year’s CUCSA Games.

The competition that takes places biennially is staged from 18 to 22 June 2018 in Gaborone, Botswana.

The Confederation of University and Colleges Sports Associations (CUCSA) comprises of the Africa Zone VI countries with its members being Angola, Botswana, Lesotho, Malawi, Mozambique, Namibia, South Africa, Swaziland, Zambia and Zimbabwe, who will all be a part of the action. 

The South African men’s and women’s teams will compete in athletics, basketball, soccer, table tennis and volleyball.

After UFS female athletes won the women’s competition at the University Sport South Africa (USSA) championships in April, it came as no surprise that they had produced the most athletes, with six out of the 17, in the national women’s athletics team. 

The athletes chosen are: Ané Erasmus (hurdles), Lynique Beneke (long jump), Marné Mentz, Tsepang Sello, Lara Orrock and Tyler Beling (all middle distances). Emmarie Fouché from KovsieSport will be one of the four athletics coaches at the games. Tsebo Matsoso (sprints), Ruan Jonck and Pakiso Mthembu (both middle distances) will form part of the men’s team.

Kovsies’ Gauta Mokati will captain the men’s football team. Jeranimo Power had initially been selected to play, but had to withdraw due to injury. Thabo Lesibe is another UFS player selected for the men’s team and Godfrey Tenoff of KovsieSport will serve as the assistant coach. Noxolo Magudu will represent Kovsies in the women’s football team.

Although there aren’t any UFS players in the CUCSA basketball teams, the men’s team will be managed by Clement Kock, an assistant coach for the Kovsies basketball team.

News Archive

Researcher part of project aimed at producing third-generation biofuels from microalgae in Germany
2016-05-09

Description: Novagreen bioreactor  Tags: Novagreen bioreactor

Some of the researchers and technicians among the tubes of the Novagreen bioreactor (Prof Grobbelaar on left)

A researcher from the University of the Free State (UFS), Prof Johan Grobbelaar, was invited to join a group of scientists recently at the Institute for Bio- and Geo-Sciences of the Research Centre Jülich, in Germany, where microalgae are used for lipid (oil) production, and then converted to kerosene for the aviation industry.

The project is probably the first of its kind to address bio-fuel production from microalgae on such a large scale.  

“The potential of algae as a fuel source is undisputed, because it was these photoautotrophic micro-organisms that were fixing sunlight energy into lipids for millions of years, generating the petroleum reserves that modern human civilisation uses today.  However, these reserves are finite, so the challenge is marrying biology with technology to produce economically-competitive fuels without harming the environment and compromising our food security.  The fundamental ability that microalgae have to produce energy-rich biomass from CO2, nutrients, and sunlight through photosynthesis for biofuels, is commonly referred to as the Third-Generation Biofuels (3G),” said Prof Grobbelaar.

The key compounds used for bio-diesel and kerosene production are the lipids and, more particularly, the triacylglyserols commonly referred to as TAGs.  These lipids, once extracted, need to be trans-esterified for biodiesel, while a further “cracking” step is required to produce kerosene.  Microalgae can store energy as lipids and/or carbohydrates. However, for biofuels, microalgae with high TAG contents are required.  A number of such algae have been isolated, and lipid contents of up to 60% have been achieved.

According to Prof Grobbelaar, the challenge is large-scale, high-volume production, since it is easy to manipulate growth conditions in the laboratory for experimental purposes.  

The AUFWIND project (AUFWIND, a German term for up-current, or new impetus) in Germany consists of three different commercially-available photobioreactor types, which are being compared for lipid production.

Description: Lipid rich chlorella Tags: Lipid rich chlorella

Manipulated Chlorella with high lipid contents (yellow) in the Novagreen bioreactor

The photobioreactors each occupies 500 m2 of land surface area, are situated next to one another, and can be monitored continuously.  The three systems are from Novagreen, IGV, and Phytolutions.  The Novagreen photobioreactor is housed in a glass house, and consist of interconnected vertical plastic tubes roughly 150 mm in diameter. The Phytolutions system is outdoors, and consists of curtains of vertical plastic tubes with a diameter of about 90 mm.  The most ambitious photobioreactor is from IGV, and consists of horizontally-layered nets housed in a plastic growth hall, where the algae are sprayed over the nets, and allowed to grow while dripping from one net to the next.

Prof Grobbelaar’s main task was to manipulate growth conditions in such a way that the microalgae converted their stored energy into lipids, and to establish protocols to run the various photobioreactors. This was accomplished in just over two months of intensive experimentation, and included modifications to the designs of the photobioreactors, the microalgal strain selection, and the replacement of the nutrient broth with a so-called balanced one.

Prof Grobbelaar has no illusions regarding the economic feasibility of the project.  However, with continued research, optimisation, and utilisation of waste resources, it is highly likely that the first long-haul flights using microalgal-derived kerosene will be possible in the not-too-distant future.

Prof Grobbelaar from the Department of Plant Sciences, although partly retired, still serves on the editorial boards of several journals. He is also involved with the examining of PhDs, many of them from abroad.  In addition, he assisted the Technology Innovation Agency of South Africa in the formulation of an algae-biotechnology and training centre.  “The chances are good that such a centre will be established in Upington, in the Northern Cape,” Prof Grobbelaar said.

 

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