| 张 哲1，王 硕1，陈佳楠1，郎元路1，严 雷1，
袁 晖2，计宏伟1，郝俊杰1.温度对果蔬比热容的影响[J].海南师范大学学报自科版,2021,34(4):423-429 |
| 温度对果蔬比热容的影响 |
| Effect of Temperature on Specific Heat Capacityof Fruit and Vegetable |
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| DOI：10.12051/j.issn.1674-4942.2021.04.010 |
| 中文关键词: 温度 比热容 差式量热扫描仪 果蔬 测定 冷藏 |
| 英文关键词: temperature specific heat capacity differential scanning calorimetry fruits and vegetables determination refrigeration |
| 基金项目:天津市自然科学基金项目（18JCQNJC77300，19JCTPJC52900）；国家自然科学基金项目（12172254，11772225）；
天津市研究生科研创新项目（2020YJSS066，2019YJSS107） |
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| 中文摘要: |
| 果蔬的比热容在果蔬加工、冷藏保鲜环节起着重要的作用。利用差式量热扫描仪
（Differential Scanning Calorimetry，DSC）测定30多种果蔬在不同温度下的比热容变化。研究发现，
果蔬样品的比热容随温度变化呈现倒U型的变化趋势。比热容起初会随温度的增高而缓慢增大，
比热容达到峰值后，随着温度的持续升高，比热容的下降速率会趋于平缓直至比热容不再发生变
化。根据比热容随温度的变化规律，可以计算果蔬能量的损失，可为新鲜成熟果蔬的冷冻、加工、
保鲜提供了可靠的数据参考，也为制冷系统的设计提供理论依据。 |
| 英文摘要: |
| The specific heat capacity of fruits and vegetables plays an important role in the processing and refrigeration of
fruits and vegetables. Differential Scanning Calorimetry (DSC) was used to measure the specific heat capacity of more than
30 kinds of fruits and vegetables at different temperatures. It was found that the specific heat capacity of fruit and vegetable
samples showed an inverted U-shaped trend with temperature change. At first, the specific heat capacity increased slowly
with the increase of temperature. After the specific heat capacity reaches the peak, with the continuous increase of tempera⁃
ture, the decreasing rate of specific heat capacity was gentle until the specific heat capacity no longer changed. According
to the change law of specific heat capacity with temperature, the energy loss of fruits and vegetables could be calculated,
which provides a reliable data reference for the freezing, processing and preservation of fresh ripe fruits and vegetables, and
also provided a theoretical basis for the design of refrigeration system. |
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