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10 June 2025 | Story Leonie Bolleurs | Photo Supplied
Anita Venter
According to Dr Anita Venter, eco-bricks help prevent further environmental degradation, a theme often highlighted by World Environment Day.

Students filling plastic bottles with tightly packed wrappers, chips packets, and cling wrap until they are sturdy may not look like revolutionaries, but that is exactly what they are. This Eco-Bricks initiative is a grassroots effort that transforms plastic waste into construction material, sparking environmental change from the ground up. From there, the possibilities multiply – from benches to buildings, and from awareness to action.

It is not just about just stuffing bottles; it is about shifting mindsets.

Dr Anita Venter, Lecturer in the Centre for Development Support at the University of the Free State (UFS), believes eco-bricks directly address the urgent need for solutions to plastic pollution. “By taking plastic out of the waste stream and giving it a new, useful life, we're actively participating in ecosystem restoration and preventing further environmental degradation, a theme often highlighted by World Environment Day.”

However, the Eco-Bricks project is doing more than managing waste. “Beyond this practical application, it serves as a powerful community development tool, empowering individuals to take control of waste management and fostering a vital environmental consciousness.”

And while we can dream of a plastic-free world, Dr Venter is grounded in today’s realities. “So, my approach is that I'd rather have plastic contained safely within a bottle – repurposed in a regenerative way – than seeing it break down into nano-plastics, poisoning our earth. This project is about finding practical solutions within our current reality.”

 

A no-cost solution 

Dr Venter does not lead from a podium; she is mentoring from the sidelines. “I'm primarily involved in mentoring our student champions. They are the real drivers, facilitating the eco-brick training peer-to-peer. It's about empowering them to spread the knowledge and skills, rather than me being the sole instructor. It’s a beautiful ripple effect.”

And ripple it does. “These initiatives continue in their communities, and that truly warms my heart,” she says. The students are taking the lessons home, creating a chain reaction of action and awareness. “It’s not just about building bricks; it’s about inspiring continued action.”

The concept’s biggest success story? Thousands of eco-bricks being used by the Natural Building Collective in the Western Cape for formalised buildings. Proof that what was started by students can reshape entire landscapes.

“I see eco-bricks as an incredible community development tool. What’s beautiful about it is that it’s a no-cost activity. Anyone who wants to start a community development initiative can pick it up, and they immediately reap the dual benefits of cleaning their environment and taking control of their own waste management. It’s very empowering on a grassroots level.”

 

Regeneration starts here

Dr Venter, who has been part of the initiative since 2013, sees it as integral to her broader environmental work as climate activist focusing on research related to housing, informal settlement upgrading, culture, socio-ecological development, regenerative design, and art. She is quick to connect plastic pollution to the deeper ecological crisis we face. “Plastic is a monumental environmental problem, rapidly leading to biodiversity collapse, which I honestly believe is a far more pressing issue than even the climate crisis itself. It’s stark – babies are now born with plastic in their tiny bodies, and these microplastics are found in every human organ. It’s a pervasive crisis.” 

With students and community leaders now steering the project, she is hopeful about the future: “The beauty of something so accessible and practical is that it doesn’t need top-down direction; it flourishes from the ground up as people recognise its value and adopt it.”

Dr Venter’s commitment to making waste meaningful goes well beyond the Eco-Bricks initiative. In the project What Remains Through Time, Slowness and Stillness, waste is transformed into meaningful art, and communities step into the role of co-creators. 

Using post-natural building techniques, the project incorporates both waste and natural materials, marrying ecological restoration with social transformation. Sites such as the Oliewenhuis Art Museum, Bloemfontein National Hospital, and Sekoele Holistic Living Arts Centre serve as hubs where participants can engage hands-on, learning new skills while strengthening their communities.

According to Dr Venter, the main activities at Oliewenhuis are from June to September this year. Here, the focus is on community collaboration and regenerative art that goes far beyond constructing physical spaces. “We’re aiming to break down social barriers and make art truly accessible and inclusive within public spaces. It’s as much about building community as it is about building structures,” she says.

So, what can you do?

Start where you are. Join an eco-brick or art-for-regeneration initiative. “Go beyond sustainability! We need to regenerate, to ‘renew, restore, revitalise’,” says Dr Venter. Attend a training event. Share what you learn. “That’s how we create real, lasting change – through shared knowledge and empowered action.”

News Archive

Mushrooms, from gourmet food for humans to fodder for animals
2016-12-19

Description: Mushroom research photo 2 Tags: Mushroom research photo 2 

From the UFS Department of Microbial Biochemical and
Food Biotechnology are, from left: Prof Bennie Viljoen,
researcher,
MSc student Christie van der Berg,
and PhD student Christopher Rothman
Photo: Anja Aucamp

Mushrooms have so many medicinal applications that humans have a substance in hand to promote long healthy lives. And it is not only humans who benefit from these macrofungi growing mostly in dark spaces.

“The substrate applied for growing the mushrooms can be used as animal fodder. Keeping all the medicinal values intact, these are transferred to feed goats as a supplement to their daily diet,” said Prof Bennie Viljoen, researcher in the Department of Microbial, Biochemical and Food Biotechnology at the UFS.

Curiosity and a humble start
“The entire mushroom project started two years ago as a sideline of curiosity to grow edible gourmet mushrooms for my own consumption. I was also intrigued by a friend who ate these mushrooms in their dried form to support his immune system, claiming he never gets sick. The sideline quickly changed when we discovered the interesting world of mushrooms and postgraduate students became involved.

“Since these humble beginnings we have rapidly expanded with the financial help of the Technology Transfer Office to a small enterprise with zero waste,” said Prof Viljoen. The research group also has many collaborators in the industry with full support from a nutraceutical company, an animal feed company and a mushroom growers’ association.

Prof Viljoen and his team’s mushroom research has various aspects.

Growing the tastiest edible mushrooms possible
“We are growing gourmet mushrooms on agricultural waste under controlled environmental conditions to achieve the tastiest edible mushrooms possible. This group of mushrooms is comprised of the King, Pink, Golden, Grey, Blue and Brown Oysters. Other than the research results we have obtained, this part is mainly governed by the postgraduate students running it as a business with the intention to share in the profit from excess mushrooms because they lack research bursaries. The mushrooms are sold to restaurants and food markets at weekends,” said Prof Viljoen.

Description: Mushroom research photo 1 Tags: Mushroom research photo 1 

Photo: Anja Aucamp

Natural alternative for the treatment of various ailments
“The second entity of research encompasses the growth and application of medicinal mushrooms. Throughout history, mushrooms have been used as a natural alternative for the treatment of various ailments. Nowadays, macrofungi are known to be a source of bioactive compounds of medicinal value. These include prevention or alleviation of heart disease, inhibition of platelet aggregation, reduction of blood glucose levels, reduction of blood cholesterol and the prevention or alleviation of infections caused by bacterial, viral, fungal and parasitic pathogens. All of these properties can be enjoyed by capsulation of liquid concentrates or dried powdered mushrooms, as we recently confirmed by trial efforts which are defined as mushroom nutriceuticals,” he said.

Their research focuses on six different medicinal genera, each with specific medicinal attributes:
1.    Maitake: the most dominant property exhibited by this specific mushroom is the reduction of blood pressure as well as cholesterol. Other medicinal properties include anticancer, antidiabetic and immunomodulating while it may also improve the health of HIV patients.
2.    The Turkey Tail mushroom is known for its activity against various tumours and viruses as well as its antioxidant properties.
3.    Shiitake mushrooms have antioxidant properties and are capable of lowering blood serum cholesterol (BSC). The mushroom produces a water-soluble polysaccharide, lentinan, considered to be responsible for anticancer, antimicrobial and antitumour properties.
4.    The Grey Oyster mushroom has medicinal properties such as anticholesterol, antidiabetic, antimicrobial, antioxidant, antitumour and immunomodulatory properties.
5.    Recently there has been an increased interest in the Lion’s Mane mushroom which contains nerve growth factors (NGF) and may be applied as a possible treatment of Alzheimer’s disease as this compound seems to have the ability to re-grow and rebuild myelin by stimulating neurons.
6.    Reishi mushrooms are considered to be the mushrooms with the most medicinal properties due to their enhancing health effects such as treatment of cancer, as well as increasing longevity, resistance and recovery from diseases.


Description: Mushroom research photo 3 Tags: Mushroom research photo 3


Valuable entity for the agricultural sector
Another research focus is the bio-mushroom application phenome, to break down trees growing as encroaching plants. This research is potentially very valuable for the agricultural sector in the areas where Acacia is an encroaching problem. With this process, waste products are upgraded to a usable state. “It is therefore, possible to convert woody biomass with a low digestibility and limited availability of nutrients into high-quality animal fodder. By carefully selecting the right combination of fungus species to ferment agro-wastes, a whole host of advantages could become inherently part of the substrate. Mushrooms could become a biotechnological tool used to ‘inject’ the substrate that will be fed to animals with nutrition and/or medicine as the need and situation dictates,” said Prof Viljoen.

 

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