【作者】 申江； 刘洋； 邹同华； 刘斌；

【Author】 Shen Jiang, Liu Yang,Zou Tonghua (Department of refrigeratbn and air-conditioning engineering,Tianjin University of Commerce, Tianjin 300134)

【机构】 天津商学院制冷与空调工程系；

【摘要】 预冷是蔬菜冷链的首要环节,对蔬菜保鲜至关重要。本文以天津产高桩型结球白菜作为实验对象,研究结球白菜处理量与预冷时间之间的关系。用保鲜膜把结球白菜密封,置于两侧开孔的包装箱内,与未加包装的结球白菜进行不同位置的温度对比分析,得出保鲜包装装置对结球白菜真空预冷效果的影响。更多还原

【Abstract】 Pre-cooling is the first working procedure after vegetable’s harvested. It is important to keep vegetable’s freshness. In this paper, long stem Chinese cabbages planted in Tianjin are used for experimental samples. Chinese cabbages which were wrapped by preservative film are put in the wrapping boxes. The boxes in vacuum room have holes in both sides. Compared with the temperature of Chinese cabbages whether they are wrapped or not, we can analyze the effect on velocity of vacuum pre-cooling by wrapping boxes and preservative film.更多还原