2026-04-13T03:07:57Zhttps://recercat.cat/oai/request

oai:recercat.cat:11351/130612025-10-24T07:47:00Zcom_2072_451667com_2072_378040col_2072_451668

00925njm 22002777a 4500 dc Lluansí, Aleix author Llirós, Marc author Oliver, Lia author Bahí, Anna author Elias Masiques, Núria author Gonzalez, Marina author Busquets, David author Torrealba Medina, Leyanira Del Valle author Buxó Pujolràs, Maria author Cambra, Maria author Aldeguer, Xavier author Sàbat Mir, Míriam author 2025-05-09T12:14:31Z 2025-05-09T12:14:31Z 2021-10-11 Pa; Microbiota intestinal; Fermentació Pan; Microbiota intestinal; Fermentación Bread; Gut microbiota; Fermentation Inflammatory bowel disease (IBD), including its two main categories (Crohn's disease and ulcerative colitis), has been linked both to gut microbiota and to diet. Bread is a daily food that has a potential capacity as a prebiotic. Our aim was to evaluate different bread-making processes and their effect on fecal colonic microbiota in IBD patients. The microbial composition of several sourdoughs and dough samples was analyzed by high-throughput sequencing of 16S and 18S rRNA genes. Three types of bread, which followed different bread-making processes, were in vitro digested and incubated with feces from IBD patients. Changes in gut microbiota were assessed by a quantitative polymerase chain reaction using specific bacterial sequence targets. Short-chain fatty acid production was also analyzed by gas chromatography. Lactobacillus sanfranciscensis was the dominant lactic acid bacteria species found in sourdough and bread doughs prepared using sourdough, whereas Saccharomyces cerevisiae was the most dominant yeast in all groups, especially in bread doughs before baking. Differences in microbial composition in raw bread doughs were more related to the type of dough and elaboration than to fermentation time lengths. The analysis of in vitro fecal incubations with bread conditions revealed an increase in most bacterial groups analyzed and short-chain fatty acid production, both in Crohn's disease and ulcerative colitis samples. Most remarkable increases in short-chain fatty acid production mirrored higher abundances of Roseburia species. The potential prebiotic properties observed were mainly obtained when using a high quantity of bread, regardless of bread type. Overall, this study highlights the bacterial dynamics within the bread-making process and the potential prebiotic effect in IBD patients. AL benefits from a grant included within the Ministry of Economy, Industry and Competitiveness (MINECO) RETOS program (RTC-2017-6467-2). LO, JA, MM, MSe, SR-P, MS-P, and LJG-G are employees of GoodGut. IE, NE-M, PB, MG, EC, and MT are employees of Elias–Boulanger who have received funding from RTC-2017 program. SD-A was an employee of Boehringer-Ingelheim who has received public and private funding from other funds. The funders had no role in study design, data collection and analysis, decision to publish or manuscript preparation. http://hdl.handle.net/11351/13061 Pa Fermentació Intestins - Microbiologia PHENOMENA AND PROCESSES::Physiological Phenomena::Diet, Food, and Nutrition::Food::Bread PHENOMENA AND PROCESSES::Microbiological Phenomena::Microbiota::Gastrointestinal Microbiome DISEASES::Pathological Conditions, Signs and Symptoms::Pathologic Processes::Dysbiosis FENÓMENOS Y PROCESOS::fenómenos fisiológicos::dieta, alimentación y nutrición::alimentos::pan FENÓMENOS Y PROCESOS::fenómenos microbiológicos::microbiota::microbiota intestinal ENFERMEDADES::afecciones patológicas, signos y síntomas::procesos patológicos::disbacteriosis In vitro Prebiotic Effect of Bread-Making Process in Inflammatory Bowel Disease Microbiome