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. 2015 Feb 17;10(2):e0117234. doi: 10.1371/journal.pone.0117234

Table 5. Concentrations of two cryoprotectants within liver and skeletal muscle of R. sylvatica subjected to different experimental freezing regimes.

Liver Gracilis
Unfrozen –8°C –16°C Cyclic Unfrozen –8°C –16°C Cyclic
Glucose 4 1393 1760 941 1 83 64 146
Urea 75 307 388 305 50 94 86 75
Glucose + urea 79 1700 2148 1245 51 177 150 221