Tunisia’s Biotech Startup Turns Blue Crab Waste into InnovationOn Tunisia’s Mediterranean coast, a different sustainability story is unfolding. Once considered a pest that disrupted fishing communities, the invasive blue crab is now at the heart of a groundbreaking biotech venture. A Tunisian startup has developed a way to process more than 5,000 tonnes of blue crab waste into pharmaceutical-grade chitosan, a versatile biomaterial. By harnessing “green chemistry,” the company is not only tackling an ecological menace but also positioning Tunisia as a hub for sustainable biotech innovation in the Global South. Now, African governments and investors are championing sustainable fertilisers designed to boost yields while safeguarding the environment.