Table 12.

The OD value against S. typhi using Starch in different hours within microplate

Time interval	OD Values using Starch
No.	Mean ± SD	Mean difference	A	Significance
1 hour	50	1.86426 ± 0.085461	-0.093740	t= -7.756, df: 49, P= 0.000
2 hours	50	1.89846 ± 0.085985	0.013460	t= 1.107, df: 49, P= 0.274
4 hours	50	1.92182 ± 0.115868	-0.010180	t= -0.621, df: 49, P= 0.537
24 hours	50	1.95570 ± 0.122541	-0.010300	t= -0.594, df: 49, P= 0.555

^a: Mean difference from cutoff values, ^b: One-sample T-Test