Table 1.

Inhibition of different gut bacteria by compounds secreted by C. difficile ATCC 9689, C. scindens ATCC 35704, and C. sordellii ATCC 9714

Test bacteria strains		Cell growth of bacteria(O.D at 600nm) in PYF for 24hr
		C.diffiicle ATCC 9689	C.scindens ATCC 35704	C.sordellii ATCC 9714	Staph.aureus (MRSA)	Ent.faecium ATCC 2316	E.coli ATCC 2340	B.vulgatus ATCC 8482
		0.81	0.78	0.85	0.58	0.69	0.71	0.98
C.scindens ATCC 35704 spent culture medium	UN^†	0.54±0.07^*		0.31±0.11^**	0.34±0.23^*	0.30±0.01^**	0.41±0.03^*	0.47±0.04^*
C.scindens ATCC 35704 spent culture medium	IN^‡	0.26±0.05^**		0.10±0.02^**	0.08±0.03^**	0.25±0.03^**	0.38±0.04^*	0.24±0.11^**
C.sordellii ATCC 9714 spent culture medium	UN	0.08±0.01^**	0.08±0.01^**		0.08±0.03^**	0.10±0.02^**	0.07±0.03^**	0.10±0.03^**
C.difficile ATCC 9689 spent culture medium	-		0.12±0.04^**	0.32±0.03^**	0.24±0.14^*	0.33±0.05^**	0.28±0.03^**	0.53±0.05^*

^†

: No addition of CA,

^‡

: Induced by 100μM CA.

^{*, **}

: Significant growth inhibition p<0.05 and p< 0.01, respectively.