Could crustaceans be key to future plastic production?

Researchers Otago University may have found us an option for food packaging that doesn't involve harmful plastics. It's called Chitosan, and it's a material derived from the outer shells of crustaceans. Combined with essential oils it's proven to be durable and safe, and can even protect perishable food from light, temperature and water vapour. University of Otago Associate Professor Azam Ali talks to Jesse about their work so far.