Advances in Polymer Technology / 2019 / Article / Tab 2

Research Article

Freeze-Concentrated Phase and State Transition Temperatures of Mixtures of Low and High Molecular Weight Cryoprotectants

Table 2

Uncoded regression coefficients and variance analysis of the hierarchical mathematical models to evaluate the variation of response variables as a function of chemical composition of the cryoprotectant solutions (p<0.05).

Response variables
Effect
valuesp>t valuesp>t valuesp>t

-150.42< 0.0001-25.84< 0.0001542.57< 0.0001
-51.85< 0.0001-42.15< 0.0001-425.770.2184
109.26< 0.0001-154.73< 0.0001-364.76< 0.0001
-50.10< 0.0001-19.77< 0.0001490.96< 0.0001
127.35< 0.0001261.830.6304233.100.3608
-61.020.1873111.710.1788-45.290.8449
-272.340.0190279.030.9517777.850.0197
397.900.000869.140.0343-314.980.2683
-13.080.7631-24.860.3756335.400.2069
-35.29< 0.0001-51.630.5986-3827.750.0559
-427.340.0296-1642.90< 0.0001-22925.84< 0.0001
-580.600.0160-672.410.0057-
-369.150.0817345.360.105710794.510.0052
-281.900.3225---
-156.360.0171---
-271.590.0002-137.140.0201-2310.270.0241
166.110.1724--
130.490.0225183.970.00372801.850.0079
------
-328.210.0311234.050.0942--
Models
 p>F< 0.0001< 0.0001< 0.0001
 R20.99710.99070.9849
 Lack of fit0.22050.10660.2302
 C.V. (%)3.385.908.57

Note: according to a Box-Cox analysis, a transformation Tm = (Tm + 20)2 on Tm values was carried out to stabilize the variance.

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