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05 November 2025 | Story Martinette Brits | Photo Supplied
Opus Cactus
Prof Maryna Boshoff from the Department of Sustainable Food Systems and Development, Lerato Mamabolo (UFS graduate, now employed at OPUS Cactus), and Sotirios Pilafidis, Head of Research and Development at OPUS Cactus, at the XI International Congress on Cacti as Food, Fodder and Other Uses, hosted by the FAO-ICARDA CactusNet in Tenerife, Canary Islands.

The University of the Free State (UFS) has formalised a collaboration with OPUS Cactus, a pioneering biotech company focused on sustainable cactus-based farming and biorefineries in semi-arid regions. This partnership builds on OPUS Cactus’ expansion at the historic Waterkloof Research Station near Bloemfontein and combines the UFS’ academic expertise with industry innovation to promote climate-smart agriculture and economic development.

OPUS Cactus, led by Joeri van den Bovenkamp-Hofman, CEO, and Sotirios Pilafidis, Head of Research and Development (R&D), specialises in transforming marginal, non-arable land into productive, resource-efficient ecosystems by cultivating the drought-tolerant Opuntia cactus. This versatile biomass supports renewable bioenergy, animal feed, food production, fermentation feedstock, and sustainable biomaterials, while contributing to carbon capture and climate mitigation efforts.

“Our mission is to unlock the full potential of Opuntia biomass for sustainable bioenergy, food, and biomaterials, advancing regenerative agriculture and climate action,” says Van den Bovenkamp-Hofman. OPUS Cactus operates dual hubs: its headquarters and R&D lab in Groningen, the Netherlands, and the flagship 1 000-hectare Waterkloof Research Centre in the Free State. The Waterkloof facility serves as a commercial farm, research platform, and demonstration site for regenerative farming techniques.

The UFS collaboration involves multiple departments, including Sustainable Food Systems and Development, Soil, Crop and Climate Sciences, and Microbiology and Biochemistry. Profs Maryna Boshoff and Carlien Pohl-Albertyn, alongside Dr Gesine Coetzer, provide academic leadership in the partnership.

Prof Boshoff explains, “This industry-academia collaboration aims to develop innovative projects utilising cactus-based products. It builds on decades of cactus research at the UFS, enabling the translation of scientific knowledge into real-world impact through scale-up and commercialisation.”

 

Bridging academic research and commercial innovation to promote climate-smart agriculture

At the core of the partnership is the Waterkloof Research Centre, home to 42 spineless Burbank cactus pear cultivars. The facility acts as a ‘living laboratory’, integrating empirical research with commercial-scale farming. “Waterkloof now offers students and researchers access to operational infrastructure that cannot be replicated in conventional academic settings,” says Prof Boshoff.

Continuing projects at Waterkloof include biogas production through an anaerobic digester, regenerative agriculture practices such as cover cropping and reduced tillage, advanced plant biotechnology to breed superior cultivars, fermentation research for alternative proteins, and the development of novel fermented foods and sustainable biomaterials.

The collaboration also plays a critical role in conserving Opuntia genetic diversity and evaluating cultivars across South Africa’s varied agro-ecological zones. “Research done by UFS and ARC scientists on cultivar selection and cultivation is applied and scaled up through OPUS Cactus’ commercial operations,” Prof Boshoff adds.

This partnership provides valuable hands-on experience and career pathways for postgraduate students and young researchers. “We offer internships and employment opportunities, with several recent UFS graduates already joining our R&D team,” says Pilafidis. “We actively seek motivated graduates passionate about sustainable agriculture and bioengineering.”

By converting semi-arid landscapes into productive, carbon-sequestering ecosystems, the UFS-OPUS Cactus collaboration exemplifies how scientific innovation, entrepreneurship, and environmental stewardship can drive climate resilience, food security, and sustainable economic growth.

“OPUS Cactus is a win for the environment, communities, and business alike,” concludes Van den Bovenkamp-Hofman.

News Archive

Horse-riding therapy improves self-confidence in children
2016-05-10


This group of Honours students in Psychology at the University of the Free State was honoured with the best postgraduate Service Learning award at the prize-giving function of the Faculty of the Humanities. From the left are Adriana de Vries, Hershel Meyerowitz, Simoné le Roux, Wijbren Nell, Melissa Taljaard, and Gerán Lordan. Photo: Marizanne Cloete.

Horse-riding therapy helps to improve self-confidence in children, and changes their perception of themselves. It puts them in a totally new environment where they can be free of any judgement.

According to Wijbren Nell, who achieved his Honours degree in Psychology at the University of the Free State (UFS), this is the ideal therapy when working with children with disabilities. He said it was amazing to see how they developed.

He was part of a group of Honours students in Psychology who received the best postgraduate Service Learning award in the Faculty of the Humanities for their community project. In 2015, this project by Wijbren, Hershel Meyerowitz, Gerán Lordan, Melissa Taljaard, Simoné le Roux, and Adriana de Vries, was part of their module Community and Social Psychology. They were honoured at the Faculty’s prize-giving function on 15 April 2016.

Purpose of project

“Our purpose with the project was to demonstrate to the children that they could still accomplish something, despite their disabilities,” Wijbren said. The students work on a weekly basis with learners from the foundation phase of the Lettie Fouché School in Bloemfontein. Marie Olivier’s Equistria Therapeutic Development Trust serves as the site for the community project. She has a long standing partnership with the UFS.

Horse-riding and therapy

According to Wijbren, the idea was to stimulate the psychomotor functioning of the children, as well as to promote their psychological well-being. He said research has shown that there is incredible therapeutic value in horse-riding. In this specific case, it has improved the children’s self-confidence, as they may have a poor self-image as a result of their disabilities.

“At the beginning of the year, there was a girl who didn’t even want to come close to a horse, let alone getting onto the horse. We kept on trying, and, once she was on the horse, we couldn’t get her down. This was the amazing thing about the project,” said Wijbren.

Award a surprise

Wijbren said the award was a honour and surprise to his group. He was full of praise for Dr Pravani Naidoo, a lecturer in Psychology at the UFS, who coordinates the therapeutic horse riding project. “She has a tremendous passion for this project, and challenged us to think on our feet. She is a real inspiration.”

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