Table 2.

Summary of 16S rRNA gene sequencing data and α-diversity values (Chao1 estimator, Shannon index, and Simpson index).

	KUHIMM (n = 8)
	FEC	CUL	DEX	αCD	DXR
Read counts	123,622 ± 29,146	166,869 ± 35,152	151,911 ± 30,120	79,656 ± 12,693	218,300 ± 42,461
Observed OTUs	1,168 ± 291	1,525 ± 204*	1,294 ± 167#	1,083 ± 151##	1,954 ± 326#
Chao1	1,834 ± 441	2,362 ± 321*	2,024 ± 253#	1,896 ± 255#	2,751 ± 510
Shannon index	5.39 ± 0.26	5.24 ± 0.25	5.14 ± 0.32	5.10 ± 0.27	5.31 ± 0.36
Simpson index	0.94 ± 0.01	0.94 ± 0.02	0.94 ± 0.02	0.93 ± 0.01	0.94 ± 0.02

Eight human faeces samples (FEC), corresponding cultures (CUL), and corresponding cultures treated with 0.2% indigestible dextrin (DEX), α-cyclodextrin (αCD), or dextran (DXR) were sampled at 30 h of fermentation.

The values show the mean ± standard deviation.

Statistical differences between samples were evaluated with respect to observed operational taxonomic units (OTUs), Chao1 estimator, Shannon index, and Simpson index.

Asterisks (*) indicate significant differences between faeces from eight healthy subjects and corresponding cultures without or with prebiotics (*P < 0.05 and **P < 0.01, Kruskal-Wallis test).

Pounds (^#) indicate significant differences between cultures with and without prebiotics (^# P < 0.05 and ^## P < 0.01, Kruskal-Wallis test).