INFLUENCE OF FATS AND THEIR HYDROLYSIS PRODUCTS ON THE PROTEOLYTIC ACTIVITY OF THE PANCREAS AND GASTRIC JUICES
Keywords:
pancreatic juice, gastric juice, proteolytic activity, casein-fat emulsion, fat hydrolysis products, casein, tributyrin, sunflower oil.Abstract
The effect of different concentrations of fat and fat hydrolysis products on the proteolytic activity of the pancreas and gastric juice was studied using casein-fat emulsion (casein+tributrin, casein+sunflower oil). Under the influence of sunflower oil hydrolysis products, the total proteolytic activity of pancreatic juice clearly decreased, but this indicator did not change under the influence of tributyrin hydrolysis products. Hydrolysis products of sunflower oil and tributyrin oil do not affect the total proteolytic activity in gastric acid environment. We saw a decrease in the proteolytic activity of the pancreas when the concentration of the above-mentioned fats was increased in the composition of the casein + fat emulsion. Increasing the concentration of fats affects the proteolytic activity of gastric juice.
References
Andreeva Yu. V. Effect of fasting and resumption of feeding on the secretory function of the stomach / Diss. ,, Cand. Biol. Science, St. Petersburg, 2007, 140 p.
Golding, M., Wooster, TJ, Day, L., Xu, M., Lundin, L., Keogh, J., & Clifton, P. Impact of gastric structuring on the lipolysis of emulsified lipids // Soft matter. - 2011. -the V . 7. - No. 7. - P . 3513-3523.
Macierzanka, A., Sancho, AI, Mills, EC, Rigby, NM, & Mackie, AR Emulsification alters simulated gastrointestinal proteolysis of β- casein and β- lactoglobulin // Soft Matter. - 2009. - the V . 5. - No. 3. - P . 538-550.
Mandalari, G., Mackie, AM, Rigby, NM, Wickham, MS, & Mills, EC Physiological phosphatidylcholine protects bovine β - lactoglobulin from simulated gastrointestinal proteolysis // Molecular nutrition & food research. - 2009. - the V . 53. - No. S1. - P . S131-S139.
