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Título: | Metabolite production during in vitro colonic fermentation of dietary fiber: Analysis and comparison of two European diets |
Autor: | Tabernero, María CSIC; Venema, K.; Maathuis, A. J. H.; Saura Calixto, Fulgencio D. CSIC | Palabras clave: | Short-chain fatty acids Ammonia Dietary fiber Colonic fermentation Mediterranean diet Scandinavian diet |
Fecha de publicación: | 2011 | Editor: | American Chemical Society | Citación: | Journal of Agricultural and Food Chemistry 59: 8968- 8975 (2011) | Resumen: | Metabolite production and antioxidant released during colonic fermentation of naturally occurring dietary fiber (DF) from two European diets (Mediterranean and Scandinavian) were determined. With this aim, DF and associated components were isolated from both whole diets, as well as from cereals and fruits and vegetables comprising the diets. DF was used as substrate for colonic fermentation in a dynamic in vitro model of the colon, samples were collected, and fermentation metabolites were analyzed. Statistical differences between samples were observed in the concentrations of short-chain fatty acids and ammonia and in the ratio acetate/propionate/butyrate. Whole grain cereal DF generated a larger amount of propionate than refined flour cereal DF. Fruit and vegetable DF generated higher amounts of butyrate than cereal DF. Most antioxidant compounds were released from DF during in vitro colonic fermentation. It is concluded that different sources of DF may play a specific role in health maintenance mediated by metabolites produced during colonic fermentation. © 2011 American Chemical Society. | URI: | http://hdl.handle.net/10261/58721 | DOI: | 10.1021/jf201777w | Identificadores: | doi: 10.1021/jf201777w issn: 0021-8561 |
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