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Table 2.

The growth of E. coli at 25°C and 37°C as measured by optical density (OD) at 420 nm.

TimeactualTime (minutes)OD420 25°COD420 37°C
12:30 0.195 0.066 
12:50 20 0.206 0.082 
1:18 48 0.241 0.137 
1:59 69 0.364 0.378 
2:19 89 0.42 0.496 
3:10 140 0.527 0.59 
3:30 160 0.618 0.703 
4:01 191 0.71 0.755 
4:21 221 0.735 0.707 
TimeactualTime (minutes)OD420 25°COD420 37°C
12:30 0.195 0.066 
12:50 20 0.206 0.082 
1:18 48 0.241 0.137 
1:59 69 0.364 0.378 
2:19 89 0.42 0.496 
3:10 140 0.527 0.59 
3:30 160 0.618 0.703 
4:01 191 0.71 0.755 
4:21 221 0.735 0.707 
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