Table 1.

A number of samples containing substances inhibitory to B. subtilis and M. luteus.

Microbial species	pH	Inhibition zone (mm)
		1>	1-2	2<
B. subtilis	6	199	26	21
	7.2	200	26	20
	8	212	25	9
	6+7.2	201	25	20
	6+8	224	13	9
	7.2+8	223	14	9
	6+7.2+8	224	13	9
M. luteus	8	212	16	18