The role of bile salts in digestion and working towards reducing fat intake

Peter Ellis (primary)
Diabetes & Nutritional Sciences Division
King's College London
Cecile A. Dreiss (secondary)
Institute of Pharmaceutical Science
King's College London

Abstract

The intake of dietary fat and its effects on health has become a major issue in our modern societies. The rate of fat digestion and subsequent absorption is controlled by the ability of lipase and its co-enzyme co-lipase to bind to fat droplet interfaces, a process controlled and facilitated by bile salts (BS), bio-surfactants present in the gastrointestinal tract. This project aims to achieve a mechanistic understanding of the key roles played by BS: how their behaviour is controlled by their structure and how we can use competing food emulsifiers to slow down lipid digestion and thus regulate fat uptake.


References

  1. Parker R, Rigby NM, Ridout MJ, Gunning AP and Wilde PJ. (2014) The absorption-desorption behaviour and structure function relationships of bile salts. Soft Matter 10, 6457-6466
  2. Lovegrove A, Edwards CH, De Noni I, Patel H, El SN, Grassby T, Zielke C, Ulmius M, Nilsson L, Butterworth PJ, Ellis PR & Shewry PR (2017) Role of polysaccharides in food, digestion, and health In : Critical Reviews in Food Science and Nutrition. 57, 237-253
  3. Mackie A, Rigby N, Harvey P, Bajka B. (2016) Increasing dietary oat fibre decreases the permeability of intestinal mucus. Journal of functional foods. 26, 418-427.
  4. Grundy MML, Quint J, Rieder A, Ballance S, Dreiss CA, Butterworth PJ & Ellis PR (2017) Impact of hydrothermal and mechanical processing on dissolution kinetics and rheology of oat -glucans. Carbohydrate Polymers 166, 387-397
  5. Gillams RJ, Lorenz CD & McLain SE (2016) Comparative atomic-scale hydration of the ceramide and phosphocholine head group in solution and bilayer environments, The Journal of Chemical Physics. 144, 225101

BBSRC Area
Plants, microbes, food and sustainability
Area of Biology
Physiology
Techniques & Approaches
BiochemistryBiophysicsChemistryEngineeringImage ProcessingMicroscopy / ElectrophysiologySimulation / Modelling