中文摘要：

探讨低温逆境条件下黄瓜贮藏过程中热特性参数变化规律,对在2、5、8、11℃低温条件下黄瓜果实的热特性随贮藏时间的变化进行研究。结果发现：黄瓜在2、5、8℃条件下均有冷害发生,而在11℃条件下并未出现冷害;随着贮藏时间的延长,黄瓜的质量损失率会渐渐上升,而比热容因失水而下降;黄瓜的热导率在冷害发生前后出现拐点。实验结果表明,果实热特性参数的变化与其生物组织冷害具有一定的相关性。

英文摘要：

In order to estimate the thermal properties of cucumber under low temperature stress,we measured the thermal properties of cucumber fruit stored for varying times at 2,5,8 and 11 ℃,respectively.The experimental results indicated that chilling injury appeared in the cucumbers when they were stored at 2,5 and 8 ℃,but not at 11 ℃.The mass loss of cucumbers gradually increased during storage,while the specific heat capacity decreased due to the water loss.The inflection point of thermal conductivity in cucumbers appeared around the storage time when its chilling injury occurred for the first time.This study showed that there were some correlations between the changes in the thermal properties of fruit and its biological tissue injuries.