Table 2. Changes of Cystatin C by storage time and temperature.

	Storage period (mg/L)
	0 hr	6 hr	24 hr	48 hr	144 hr
Refrigerated	0.37 ± 0.01a	0.35 ± 0.02	0.36 ± 0.01	0.36 ± 0.02	0.16 ± 0.03**
Room temperature	0.37 ± 0.01	0.37 ± 0.02	0.37 ± 0.02	0.38 ± 0.02	0.17 ± 0.07*
Deep freezer	0.37 ± 0.01	0.36 ± 0.02	0.36 ± 0.01	0.37 ± 0.01	0.18 ± 0.03**

*, ** Significantly different from control (p<0.05, p<0.01, respectively).

^aData represent mean ± S.D.