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Formulation, caractérisation et validation d'un pain satiétogène

Abstract : This PhD project was aimed at the formulation, the characterization and the validation of one bread, processed from flour selected to increase the satiety effects on humans. For the last several decades, the prevalence of overweight and obesity around the world has been increasing. The risks of obesity are responsible for a stagnation of life expectancy in some industrialized countries. In order to stop this pandemic phenomenon, dietary fibre appears to have beneficial effects on the decrease in feeling hunger, caloric intake and body weight of obese participants. The first goal of this work was to process two fibre-enriched breads: one of them was a “whole grain” bread (PF1), and the second one a “multigrain bread” (PF2). In order to validate the effects of these two breads on human metabolism, two experimental design studies have been led: short term studies, and long term studies. Two short-term studies have been led. The first study evidenced that the most fibre-enriched bread was expected to be more satiating than a white bread, and thus, participants reduced the weight of this bread eaten. The second experiment showed that hunger sensation reappeared more slowly for the most fibre-enriched bread. Finally, a long term study was conducted on average weight participants, aimed at serving a fixed and important weight of the PF1 and PF2 breads during breakfast. After two weeks of exposure to these fibre-enriched breads, participants felt less hungry. Furthermore, for the PF1 bread, participants also decreased their caloric intake in comparison to a controlled condition. In conclusion, all of these studies permitted to target one experimental bread and a paradigm to be followed, in order to lead a study examining overweight or obese participants during a weight-loss diet, with the aim of increasing the well-being experienced from the diet.
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Submitted on : Thursday, February 9, 2012 - 11:49:36 AM
Last modification on : Friday, October 23, 2020 - 4:37:52 PM
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  • HAL Id : tel-00668177, version 1



Peio Touyarou. Formulation, caractérisation et validation d'un pain satiétogène. Médecine humaine et pathologie. Université de Bourgogne, 2011. Français. ⟨NNT : 2011DIJOS011⟩. ⟨tel-00668177⟩



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