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. 2018 Sep 25;1(3):180–188. doi: 10.1002/ame2.12033

Table 1.

The composition of the microbiota in various regions of the digestive tract

Position Density number/mL Bacteria species
Stomach 0‐102 Lactobacillus, Candida, Streptococcus, Helicobacter pylori, Peptostreptococcus
Duodenum 102 Streptococcus, Lactobacillus
Jejunum 102 Streptococcus, Lactobacillus
Proximal ileum 103 Streptococcus, Lactobacillus
Distal ileum 107‐108 Clostridum, Streptococcus, Bacteroides, Actinomycinae, Corynebacteria
Colon 1011‐1012 Bacteroides, Clostridum groups IV and XIV, Bifidobacterium, Enterobacteriaceae