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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

PhD students’ voices reverberate across Africa and beyond
2014-01-14

 

Noel Ndumeya, Tinashe Nyamunda, Ivo Mhike and Anusa Daimon
Photo: Hannes Pieterse
The Centre of Africa Studies (CAS) has been recruiting the best young scholars from across the SADC region – with magnificent success. In the span of six months, four PhD students have excelled both on the African continent and abroad.

Anusa Daimon, Noel Ndumeya, Ivo Mhike and Tinashe Nyamunda – the names of these distinguished students. Set against the backdrop of global excellence and competition, they have been awarded several positions at conferences and already published world-wide.

Anusa Daimon’s PhD studies at the CAS focuses on Malawian migrants and their descendants in Southern Africa. It explores issues of identity construction and agency among this group.

Since his arrival at the CAS, Daimon has won two fully-funded awards to attend international conferences and workshops. He was invited to attend the Young African Scholars Conference at Cambridge University in the UK. He also went to Brazil to the IGK Work and Human Lifecycle in Global History Summer Academy. This workshop explored the historical and modern meanings and practices of work in terms of ‘freedom’ and ‘unfreedom’.

Noel Ndumeya holds a special interest in environmental history and the aspects of conservation and conflict. His PhD hones in on land and agrarian studies with specific focus on South Eastern Zimbabwe.

Ndumeya has won an award from the African Studies Association United Kingdom (ASAUK). This earned him an invitation to Nairobi, Kenya, to work with an editor from the Journal of Southern Africa Studies (JSAS).

Ivo Mhike’s research specialises in youth culture and their relationship with the state. In his PhD he uses juvenile delinquency as a window towards an analysis of social constructs of youth behaviour. This includes youth policy and their institutional and administrative links to the state.

Mhike has been invited to attend the CODESRIA Child and Youth Institute in Dakar, Senegal, with the theme: Social Protection and the Citizen Rights of Vulnerable Children in Africa.

Tinashe Nyamunda specialises in African Economic History. His PhD thesis is entitled, “The State and Finance in Rhodesia: A study of the evolution of the monetary system during the Unilateral Declaration of Independence (UDI), 1965–1979”.

Under the direction of his primary supervisor, Prof Ian Phimister and his secondary supervisor, Dr Andrew Cohen, four of his papers have been accepted for publication. Nyamunda also received sponsorship from the Rector’s Office for an edited book collection of which he is the leading author. The book focuses on the many aspects of Zimbabwe’s blood diamonds.

Recently, Nyamunda has contributed papers at conferences in Botswana and Scotland and attended a workshop at Lund University in Sweden. He has also received an invitation from Germany and Oxford to present some chapters of his PhD thesis.

“The centre has provided the best working environment any PhD student can dream of,” Nyamunda said. He continued to remark that the opportunities Prof Jonathan Jansen has created opened up immense possibilities for them.

“Given these fruitful experiences in just a year at the university,” Nyamunda said,” imagine what can be accomplished given the resources and environment availed by the institution.” The prospects after his PhD studies looks bright, he concluded, because of the opportunities provided by the UFS.

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