Abstract
Metabolomics is a critical approach to fully understand the metabolic repercussions of a nutritional supplement on the gut microbiota. Here, a proof of principle study was conducted via a metabolomic survey of polar metabolites to explore the effect of AG1 on the metabolic output of the human gut microbiota,in vitro, using the Simulator of the Human Intestinal Microbial Ecosystem® (SHIME). Aliquots were isolated from the fecal slurry at baseline (0 h), 1 h, 24 h, and 48 h of colonic fermentation simulation. Chemical analysis at these timepoints detected a total of 165 metabolites with 57, 21, and 14 specific metabolites being significantly altered by AG1 relative to the blank controls at 1 h, 24 h, and 48 h, respectively. Many of these metabolites likely resulted from AG1 directly as a supplement, but several of these metabolites also likely arose specifically from microbial metabolism.
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