Table I.

The results from different parameters for in vitro cell quality of the platelet products evaluated over 7 days

	Day 1	Day 3	Day 5	Day 7
pH	6.89 ± 0.057	7.02 ± 0.043	6.90 ± 0.047	6.90 ± 0.052
Glucose consumption rate; mmol/1012 platelets/hour			0.041 ± 0.007	0.035 ±0.006
Lactate; mmol/L)	18.43 ± 1.108	11.35 ± 1.089	15.84 ± 1.455	17.81 ± 1.384
Swirl	3.00 ± 0	2.75 ± 0.380	2.20 ± 0.523	1.30 ± 0.523
P-selectin/CD62; percent positive cells			77.27 ± 4.316	53.57 ± 3.181
LDH (IU/L)		147.85 ± 45.297	102.90 ± 18.767	111.2 ± 23.410