Spontaneous fermentation of Tritordeum flour enhances the nutritional potential of this hybrid cereal. However, the effect of consumption of Tritordeum sourdough bread (SDB) on gut health remains to be elucidated. This study investigated the effect of in vitro digestion and faecal fermentation of SDB compared to that of traditional baker's yeast (BYB) Tritordeum bread. After 24-h anaerobic faecal fermentation, both SDB and BYB (1% w/v) induced an increase in the relative abundances of Bifidobacterium, Megasphaera, Mitsuokella, and Phascolarctobacterium genera compared to baseline, while concentrations of acetate and butyrate were significantly higher at 24 h for SDB compared to those for BYB. Integrity of intestinal epithelium, as assessed through in vitro trans-epithelial electrical resistance (TEER) assay, was slightly increased after incubation with SDB fermentation supernatants, but not after incubation with BYB fermentation supernatants. The SDB stimulated in vitro mucosal immune response by inducing early secretion of inflammatory cytokines, IL-6 and TNF-α, followed by downregulation of the inflammatory trigger through induction of anti-inflammatory IL-10 expression. Overall, our findings suggest that Tritordeum sourdough can modulate gut microbiota fermentation activity and positively impact the gut health.

Arora, K.; Gaudioso, G.; Solovyev, P.; Tuohy, K.; Di Cagno, R.; Gobbetti, M.; Fava, F. (2024). In vitro faecal fermentation of Tritordeum breads and its effect on the human gut health. CURRENT RESEARCH IN MICROBIAL SCIENCES, 6: 100214. doi: 10.1016/j.crmicr.2023.100214 handle: https://hdl.handle.net/10449/83439

In vitro faecal fermentation of Tritordeum breads and its effect on the human gut health

Gaudioso, G.;Solovyev, P.;Tuohy, K.;Fava, F.
Ultimo
2024-01-01

Abstract

Spontaneous fermentation of Tritordeum flour enhances the nutritional potential of this hybrid cereal. However, the effect of consumption of Tritordeum sourdough bread (SDB) on gut health remains to be elucidated. This study investigated the effect of in vitro digestion and faecal fermentation of SDB compared to that of traditional baker's yeast (BYB) Tritordeum bread. After 24-h anaerobic faecal fermentation, both SDB and BYB (1% w/v) induced an increase in the relative abundances of Bifidobacterium, Megasphaera, Mitsuokella, and Phascolarctobacterium genera compared to baseline, while concentrations of acetate and butyrate were significantly higher at 24 h for SDB compared to those for BYB. Integrity of intestinal epithelium, as assessed through in vitro trans-epithelial electrical resistance (TEER) assay, was slightly increased after incubation with SDB fermentation supernatants, but not after incubation with BYB fermentation supernatants. The SDB stimulated in vitro mucosal immune response by inducing early secretion of inflammatory cytokines, IL-6 and TNF-α, followed by downregulation of the inflammatory trigger through induction of anti-inflammatory IL-10 expression. Overall, our findings suggest that Tritordeum sourdough can modulate gut microbiota fermentation activity and positively impact the gut health.
Tritordeum
Sourdough fermentation
Simulated in vitro digestion
Gut microbiota
Epithelial integrity
Settore CHIM/01 - CHIMICA ANALITICA
2024
Arora, K.; Gaudioso, G.; Solovyev, P.; Tuohy, K.; Di Cagno, R.; Gobbetti, M.; Fava, F. (2024). In vitro faecal fermentation of Tritordeum breads and its effect on the human gut health. CURRENT RESEARCH IN MICROBIAL SCIENCES, 6: 100214. doi: 10.1016/j.crmicr.2023.100214 handle: https://hdl.handle.net/10449/83439
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