| 摘要: |
| 可装卸式蓄冷保温箱组装、拆卸方便，是蓄冷保温箱发展的趋势。本文实验研究了平菇的冷链运输效果，测定箱内空气温度、平菇中心温度和蓄冷剂温度变化，计算可装卸蓄冷箱冷链运输过程缝隙漏热率，每隔30 h对平菇取样进行感官评定，测定其营养指标变化。结果表明：当环境温度25 ℃时，56 h后蓄冷剂完全液化，比预计时间少8 h，表明蓄冷剂需求量的估算值偏小，可以使用系数修正法予以调整；可装卸式蓄冷保温箱缝隙漏热率达到12.97%，缝隙漏热量占比大，应优化组装工艺；实验60 h与0 h相比，感官评分下降3.53%，可溶性固形物含量下降5.9%；可溶性蛋白质含量下降4.2%；维生素C含量下降9.96%，实验过程平菇商品价值、营养价值变化不大。 |
| 关键词: 可装卸 蓄冷保温箱 漏热量 冷链运输 |
| DOI： |
| 投稿时间：2016-11-17
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| 基金项目:“十二五”国家科技支撑计划重点项目（2015BAD19B02）。 |
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| Effect of Cold Chain Transportation on Assemble-able Cold-storage Incubator |
| Zhang Qiuyu,Zang Runqing,Liu Sheng,Li Yan,Fan Zhongyang,Sun Lijun |
| (Tianjin University of Commerce, Refrigeration Engineering Research Center of Ministry of Education, Tianjin Refrigeration Engineering Technology Center;Vegetable Research Center of Beijing Academy of Agriculture and Forestry Sciences, National Engineering Research Center for Vegetables) |
| Abstract: |
| Cold-storage incubators that are easy to disassemble and assemble may become the development trend of the future. An experiment on the effect of cold-chain transportation was performed on an assemble-able cold-storage incubator with pleurotus ostreatus (oyster mushrooms). During the experiment, the temperatures of the air, the center of the pleurotus ostreatus, and the cold-storage agent in the incubator were tested; then, the heat-leakage rate from the gaps in the cold-storage incubator assembly was determined. Meanwhile, the pleurotus ostreatus were sampled every 30 hours to make a sensory evaluation and the nutritional indicators were tested to judge the effect of the cold-chain transportation. The results show that, in an ambient temperature of 25 ℃, it takes 56 hours for the coolant to completely liquefy, which is eight hours less than that estimated. This means that the required coolant amount, which can be adjusted by a factor-correction method, was actually larger than the estimation. Moreover, the heat-leakage rate from the gap increased to 12.97%, which was thought to be a bit larger proportion. Thus, it is necessary to improve the assembly process of the assemble-able cold-storage incubator. In addition, the commodity and nutritional value of pleurotus ostreatus are rarely reduced during cold storage. When the values after 60 h were compared with those at the beginning, the sensory evaluation scores, the soluble-solids content, the soluble-protein content and the vitamin C content had dropped by 3.53%, 5.9%, 4.2% and 9.96% respectively. |
| Key words: assembly cold storage incubator heat leakage cold chain transportation |
