Impact of coffee consumption on the gut microbiota: A human volunteer study
The impact of a moderate consumption of an instant coffee on the general composition of the human intestinal bacterial population was assessed in this study. Sixteen (16) healthy adult volunteers consumed a daily dose of 3 cups of coffee during 3 weeks. Faecal samples were collected before and after...
Gespeichert in:
Veröffentlicht in: | International journal of food microbiology 2009-03, Vol.130 (2), p.117-121 |
---|---|
Hauptverfasser: | , , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | The impact of a moderate consumption of an instant coffee on the general composition of the human intestinal bacterial population was assessed in this study. Sixteen (16) healthy adult volunteers consumed a daily dose of 3 cups of coffee during 3 weeks. Faecal samples were collected before and after the consumption of coffee, and the impact of the ingestion of the product on the intestinal bacteria as well as the quantification of specific bacterial groups was assessed using nucleic acid-based methods. Although faecal profiles of the dominant microbiota were not significantly affected after the consumption of the coffee (Dice's similarity index
=
92%,
n
=
16), the population of
Bifidobacterium spp. increased after the 3-week test period (
P
=
0.02). Moreover, in some subjects, there was a specific increase in the metabolic activity of
Bifidobacterium spp. Our results show that the consumption of the coffee preparation resulting from water co-extraction of green and roasted coffee beans produce an increase in the metabolic activity and/or numbers of the
Bifidobacterium spp. population, a bacterial group of reputed beneficial effects, without major impact on the dominant microbiota. |
---|---|
ISSN: | 0168-1605 1879-3460 |
DOI: | 10.1016/j.ijfoodmicro.2009.01.011 |