Effects of Storage Time on Total Protein and Globulin Concentrations in Bovine Fresh Frozen Plasma Obtained for Transfusion

Table 2

Effects of storage time on protein parameters in bovine plasma obtained for transfusion purposes and stored frozen at −20°C for 12 months. Mean, median, value (referred to Kruskal-Wallis (K-W) test and paired -test or Mann-Whitney (M-W) test), and percentage of variation in total protein (TP), albumin (ALB), and beta-2 globulin fractions (agarose gel electrophoresis) at different time of storage.

Sample	Time (months)	value; P. -test; M-W	value; K-W	Mean/median difference	Percentage of variation %
TP	0-1	0.0108	0.0336	7–7.45 g/dL	6.4%
TP	0–6	0.0023		7–7.45 g/dL	6.4%
TP	0–12	0.0027		7–7.25 g/dL	3.5%
ALB	0-1	0.0131	0.0394	2.6–2.8 g/dL	7.6%
ALB	0–6	0.0035		2.6–2.8 g/dL	7.6%
ALB	0–12	0.0038		2.6–2.8 g/dL	7.6%
Beta-2	0–6	0.0401	0.0401	0.53–0.57 g/dL	7.5%
Beta-2	0–12	0.0230		0.53–0.60 g/dL	13.2%