TABLE 11.

Azoreductase activities in fecal samples

Subject	Azoreductase activity (μmol/h/g of feces)
	Control period (n = 6)	Test period (n = 6)	Posttest period (n = 3)
1	1.05 (0.06)a	1.01 (0.09)b	3.15c
2	0.96 (0.28)	1.03 (0.15)	1.15 (0.07)
3	1.13 (0.18)	1.04 (0.14)	0.90 (0.13)
4	1.64 (0.14)	1.63 (0.20)	1.23 (0.15)
5	0.93 (0.17)	0.82 (0.13)	0.92 (0.14)
6	2.39 (0.32)	0.95 (0.11)	1.28 (0.27)
7	1.58 (0.29)	1.25 (0.18)	1.15 (0.22)
8	1.14 (0.19)	1.05 (0.23)b	1.05c
9	0.85 (0.17)	0.79 (0.04)	0.89 (0.12)
10	1.46 (0.19)	1.26 (0.07)	1.98 (0.99)

^aMean (standard error of the mean). 

^bn = 2. 

^cn = 1.