Table 3 Summary of 16S rRNA gene sequencing data and α-diversity values (Chao1, Shannon index, and Simpson index) in faecal samples obtained from a human intervention study.

From: Low amounts of dietary fibre increase in vitro production of short-chain fatty acids without changing human colonic microbiota structure

 

Human intervention study (n = 4)

washout-1

αCD

washout-2

DEX

Read counts

116,239 ± 38,393

129,196 ± 42,459

138,811 ± 48,413

125,079 ± 42,432

Observed OTUs

1,518 ± 288

1,548 ± 471

1,534 ± 460

1,620 ± 527

Chao1

2,416 ± 558

2,459 ± 675

2,457 ± 538

2,530 ± 752

Shannon index

5.70 ± 0.36

5.35 ± 0.69

5.53 ± 0.70

5.64 ± 0.67

Simpson index

0.95 ± 0.01

0.92 ± 0.04

0.94 ± 0.03

0.95 ± 0.02

  1. Four human volunteers participated in this study. Faecal samples were obtained after the subjects drank water for 14 days (washout-1 or washout-2) and ate α-cyclodextrin (αCD) or indigestible dextrin (DEX) for seven days.
  2. The values show the mean ± standard deviation.
  3. No statistical difference was detected between faecal samples (washout-1, αCD, washout-2, and DEX) in terms of observed operational taxonomic units (OTUs), Chao1, Shannon index, and Simpson index (Kruskal-Wallis test).
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