imprint:
[Erscheinungsort nicht ermittelbar]: [Verlag nicht ermittelbar], 2016
Language:
English
Origination:
University thesis:
Dissertation, 2016
Footnote:
Description:
The main objective of the thesis is to explore the possible cross-talk" between the brain, intestine and specific foods components (i.e. dietary fibres and blueberry polyphenols). This objective will be achieved through a short-term study and a long-term intervention in humans, with the non-invasive analysis of saliva samples and breath compositions. The short-term study aimed at evaluating the impact of dietary fibres on salivary NAEs during mastication and in the post-prandial phase. Three types of biscuits enriched with 3% barley β-glucan (βGB) or whole-wheat bran (WWBB) or without dietary fibre (control, CB) were developed. A crossover randomized human study with eighteen healthy and fasting participants was carried out. Saliva samples from subjects in a resting condition, upon mastication of parafilm and one of the three biscuits were collected. Subsequently, the amount of biscuits consumed in an ad-libitum breakfast was measured and post-prandial saliva samples, blood glucose, and questionnaires of appetite and food liking were collected over the following two hours. Data demonstrated that salivary NAEs concentration increased only upon food mastication instead of mastication itself, independently from dietary fibre composition of the food. The type of biscuits did not influence individual appetite nor post- prandial blood glucose