TABLE 1.

pH (measured after inoculation) and total lactic acid concentration combinations evaluated at 10, 15, 20, 25, 30, and 37°C in growth/no growth experiment 1 performed with E. coli M23

Broth prepn	pH used with a total lactic acid concn of:
	0	25 mM	50 mM	100 mM	200 mM	500 mM
1	2.8	3.0	3.2	4.0	4.5	4.5
2	3.4	3.9	4.1	4.4	4.7	5.0
3	3.6	4.1	4.4	4.6	4.9	5.3
4	3.8	4.2	4.5	4.7	5.0	5.5
5	3.9	4.3	4.6	4.9	5.1	5.4
6	4.0	4.4	4.7	5.0	5.1	5.5
7	4.4	4.5	4.8	5.2	5.3	5.6
8	4.6	4.6	5.1	5.4	5.4	5.6
9	5.3	—a	6.0	5.7	—	5.8
10	6.9	6.6	6.8	6.2	6.1	5.9

^a—, combination was not tested because the broth was contaminated before the experiment was started.