Table 1.

Linear regression values for data shown in Fig. 2

Time point	ya
	a	b	R2
4	0.039	0.133	0.045
5	0.117	1.024	0.932
6	0.160	0.992	0.950
7	0.198	0.909	0.934
8	0.240	0.813	0.927
9	0.103	0.793	0.945
AFU90b	0.187	0.907	0.935

^ay = a + b × x, where a is the y intercept and b is the slope.

^bThe time point at which the fluorescence signal reaches 90% of the signal plateau (AFU₉₀) ranged between 7 and 8 h.