Cassava, hemp could offer alternatives to plastics – Zanetor challenges scientists

Dr Zanetor Agyeman-Rawlings has challenged scientists and researchers to explore the potential of cassava and hemp as sustainable alternatives to conventional plastics, highlighting the need for Ghana to invest in innovative solutions to the growing problem of plastic pollution.

The legislator’s call draws attention to the role scientific research and locally available agricultural resources could play in developing environmentally friendly materials while creating new economic opportunities for the country.

Conventional plastics are widely used in packaging, manufacturing and everyday household products. However, their durability and slow decomposition have contributed to mounting waste management challenges, with plastic pollution affecting drainage systems, water bodies, agricultural land and urban communities.

Against this background, cassava and hemp could provide opportunities for developing alternative materials, provided researchers can establish commercially viable production methods.

Cassava is widely cultivated in Ghana and is rich in starch, which can be processed into biodegradable materials. Through scientific innovation, cassava starch can be used in the development of bioplastics for certain packaging and disposable products.

Such innovations could create additional markets for cassava farmers, encourage agro-processing and help strengthen the connection between agriculture and manufacturing.

Hemp, meanwhile, contains plant fibres and other compounds that researchers can investigate for use in biodegradable materials and sustainable industrial products. Its potential applications would depend on the variety cultivated, the processing techniques used and the regulatory framework governing its production.

Exploring these alternatives could also support efforts to reduce dependence on petroleum-based plastics. However, plant-based materials are not automatically environmentally harmless; their overall impact depends on how they are manufactured, used and disposed of.

For cassava- or hemp-based alternatives to make a meaningful difference, scientists would need to assess production costs, durability, biodegradability and the availability of suitable industrial processing facilities.

The challenge also presents an opportunity for universities, research institutions, agricultural businesses and policymakers to collaborate on developing locally appropriate technologies.

In Ghana, investment in this area could potentially stimulate innovation, create employment and provide additional income opportunities for farmers while supporting more sustainable waste management practices.

Zanetor’s call underscores the importance of translating scientific research into practical solutions to environmental problems.

If research into cassava- and hemp-based materials produces affordable and effective alternatives, Ghana could strengthen its efforts to tackle plastic pollution while expanding opportunities in agriculture and green manufacturing.

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