In order to preserve porcine kidney at cryobiological relevant temperatures

the effects of different concentrations of glycerol on the freezing point

apparent specific heat

the latent heat of porcine kidney were investigated between -80~20℃ by using Differential Scanning Calorimeter (DSC). Thermal constant Analyzer (Hot Disk) was used to measure the thermal conductivity of porcine kidney in varying mass fraction of glycerol. Results show that as the mass fraction of glycerol increases

the thawing phase transition range of porcine kidney shift to the lower temperature range

the freezing point and the apparent latent heat both decrease. The change of apparent specific heat can be divided into three phases. Before the phase change

apparent specific heat increase with the increases of mass fraction of glycerol; in phase-change region

apparent specific heat is significantly reduced as the mass fraction of glycerol increases; and after the phase change

apparent specific heat are lower for higher glycerol mass fraction. And the thermal conductivity goes down as glycerol mass fraction increases. The thermal characteristics can provide theoretical basis for organ cryopreservation.