Sunday, December 05, 2021

Dr Linda Giblin of Teagasc Moorepark.

WHETHER it’s breakfast, lunch or dinner, a takeaway or a meal made from scratch, the food we eat is a complex structure of proteins, carbohydrates and fats along with other micronutrients including vitamins and minerals.

In food and nutritional studies, the term ‘bioactive’ refers to compounds in food which aren’t essential nutrients but may have other, separate health benefits.

Dr André Brodkorb and Dr Linda Giblin, food scientists at Teagasc’s Food Research Centre in Moorepark, study food digestion and bioactives. And their research features on tomorrow’s (Monday, December 7) episode of “10 Things to Know About…Gut Health” on air on RTÉ One at 8:30pm.

Dr André Brodkorb’s group study food digestion and the relationship between a food’s structure and its function in the body. As a member of the worldwide INFOGEST network, Dr Brodkorb was a leader in the development of a standardised in vitro model of the digestive system.

In tomorrow night’s episode, André demonstrates this lab model to presenter Aoibhinn Ní Shúilleabháin. He commented: “Lab-based digestion models help us to fully understand what is happening once we eat and digest food. It allows us to identify bioactives that are released from food during digestion, while the standardised methods such as INFOGEST allow us to compare and share results with other research groups worldwide.”

Dr Linda Giblin’s research group focus on food bioactives and their effects on the gut barrier, the lining of the digestive system. Using tissue cells cultured in the lab, they can mimic the cells of the gut barrier and measure their response to digested food. In particular, they investigate how protein components of digested food cross the gut barrier and the bioactive effects these proteins may have beyond growth and maintenance.

“Not all proteins we eat are the same,” she said.” They differ in their amino acid composition, their digestion and the peptides they produce during gut transit. We ask the question whether bioactive proteins can provide health benefits to the gut barrier and downstream to muscle cells.”

You can check out the promo video for tomorrow’s programme here:

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