PhD defence

From ingestion to digestion: The influence of oral processing behaviour on nutrients digestion.

PhD candidate Yao Y (Yao) Chen
Promotor prof.dr. MA (Markus) Stieger
Co-promotor dr. E (Edoardo) Capuano
Organisation Wageningen University, Food Quality and Design

Mon 9 October 2023 13:30 to 15:00

Venue Omnia, building number 105
Hoge Steeg 2
6708 PH Wageningen
+31 (0) 317 - 484500
Room Auditorium


Oral processing behaviour, in simple terms, the way of how consumers chew and swallow foods, varies considerably among consumers and foods with different properties. This thesis investigates the role of oral processing behaviour in food matrix breakdown, and nutrients digestion. It also explores how food properties and consumption context influence oral processing behaviour and its impact on nutrients release.

Results show that prolonged chewing time consistently enhances in vitro nutrients digestion by breaking food into smaller fragments. However, this effect does not significantly influence in vivo glycaemic responses in healthy subjects. Food properties, oral processing behaviour, and health status interact in complex ways to influence nutrients digestion.