TABLE 2.

Effect of single omission of vitamins on growth of several bacteria isolated from the surface of smear cheese

Vitamin omitted	Growth (OD600) of straina:
	B. aurantiacum 1-16-58	C. casei DPC 5298T	C. variabile DPC 5310	M. gubbeenense DPC 5286T	S. saprophyticus 4E61
None	1.8 ± 0.05a	2.2 ± 0.27	1.9 ± 0.25	1.8 ± 0.03	2.4 ± 0.19
Riboflavin	1.7 ± 0.07	2.1 ± 0.30	1.7 ± 0.35	1.7 ± 0.10	2.1 ± 0.23
Folic acid	1.8 ± 0.03	2.3 ± 0.13	1.8 ± 0.16	1.7 ± 0.07	2.0 ± 0.07
Calcium panthotenate	1.7 ± 0.04	0.16 ± 0.004*	1.8 ± 0.16	0.01 ± 0.001*	2.1 ± 0.15
Nicotinic acid	1.7 ± 0.04	2.2 ± 0.06	1.8 ± 0.17	1.8 ± 0.10	2.1 ± 0.11
Pyridoxamine	1.8 ± 0.02	1.8 ± 0.16	1.7 ± 0.04	1.9 ± 0.14	2.2 ± 0.28
Pyridoxal HCl	1.8 ± 0.04	2.1 ± 0.32	1.8 ± 0.04	1.8 ± 0.07	2.3 ± 0.33
Pyridoxine	1.8 ± 0.02	2.4 ± 0.15	2.1 ± 0.33	1.8 ± 0.02	2.4 ± 0.12
Biotin	1.1 ± 0.02*	1.4 ± 0.11*	1.8 ± 0.02	1.3 ± 0.04*	1.9 ± 0.09
Thiamine	1.8 ± 0.04	2.3 ± 0.31	1.8 ± 0.03	0.8 ± 0.02*	1.2 ± 0.02*

^aGrowth was measured as the OD₆₀₀ after 72 h of incubation at 30°C. Each value is the average ± standard deviation. *, mean significantly different from control at a 95% confidence interval.