Evaluation of the effects of four media on human intestinal microbiota culture in vitro

Abstract

Abstract The human intestinal microbiota has an important role in the maintenance of human health and disease pathogenesis. The aim of this research was to investigate the impact of four media on human intestinal microbiota metabolite and composition changes, we performed in vitro batch culture using intestinal microbiota samples from three fecal microbiota transplantation (FMT) donors. After 48 h culture, gut microbiota medium (GMM) had the highest production of acetic acid (73.00 ± 7.56 mM) and propionic acid (16.79 ± 1.59 mM), bacterial growth media (BGM) had the highest production of butyric acid (13.39 ± 0.56 mM). In addition, brain heart infusion (BHI) promoted (p < 0.05) the growth of Bacteroidetes, especially Bacteroides after 48 h, GMM resulted in a significant increase (p < 0.05) in Actinobacteria and increased the beneficial genus Bifidobacterium, fastidious anaerobe broth (FAB) increased Firmicutes population, and BGM promoted the growth of Escherichia–Shigella and Akkermansia. The results suggest that four media had different effects on the human intestinal microbiota metabolism and composition in vitro. These results may facilitate the culture of bacteria from the human intestinal microbiota.

Keywords

• Intestinal microbiota
• Short chain fatty acid
• In vitro culture
• 16S rRNA