More than 1,700 people young and old enjoyed a day learning about food science as the Norwich-based Institute of Food Research opened its doors to the public for the first time in six years.

The chance to walk through a giant colon, hear music inspired by the make-up of proteins, and look through an atomic force microscope that creates images through touch, were among the activities on offer to visitors on Saturday.

About the amount of people that attended the event, Dee Rawsthorne, outreach coordinator at IFR, said: 'Wow - it was totally unexpected. The great thing about the day was how many young people came to the event, and seeing so many people being captivated by science. There were lots of family groups with children and grandparents coming to look round together which was great.'

'Molecular DJ' and research scientist Dr Mark Reuter, who had a busy day talking to people about music that was designed to demonstrate a fundamental principle of biology, said: 'It was non-stop. It was good to see people taking an interest in the research institute, and that we were able to open our doors to the public so that they can engage in the research we do here.'

The event was part of the Norfolk Food and Drink Festival celebrations.