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HUANG Ruguo, ZHANG Min*, YUAN Haitao, XIE Yue, LIANG Feixia
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Abstract:
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.
Key words: low temperature stress, thermophysical properties, specific heat capacity, thermal conductivity, ice point
CLC Number:
TS255.1
HUANG Ruguo, ZHANG Min*, YUAN Haitao, XIE Yue, LIANG Feixia. Variations of Thermophysical Properties of Cucumber Fruit under Different Low Temperature Stresses[J]. FOOD SCIENCE, doi: 10.7506/spkx1002-6630-201522034.
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URL: https://www.spkx.net.cn/EN/10.7506/spkx1002-6630-201522034
https://www.spkx.net.cn/EN/Y2015/V36/I22/177