香菜热风干燥的试验研究

首先通过试验分析了漂烫预处理对香菜热风干燥特性的影响,然后用单因素试验设计方法探讨热风温度、热风速度和铺料层厚度对香菜热风干燥特性的影响,之后又对香菜干制品进行复水试验,得出了香菜干制品在不同干燥条件下的复水特性。结果表明:热风温度越高,热风速度越大,铺料层厚度越小,干燥速率越大,干燥过程所需时间越短;但是,过高的热风温度、热风速度和过小的铺料层厚度都会降低香菜干制品的复水性能。

Experimental Study on Hot Air Drying of Coriander

In this paper, the effect of blanching pretreatment on drying characteristics of coriander was investigated through the experiment.The impacts of hot air temperature, hot air velocity and thickness of materials on the hot air dr-ying characteristics of coriander were investigated by single factor experiment design, and the rehydration test further ob-tained the rehydration characteristics of dried materials under different drying conditions.The results show that higher hot air temperature, faster hot air velocity and smaller thickness of the material will cause greater drying rate and shorten the whole drying time.However, too high hot air temperature, hot air velocity and too small thickness of the material layer can reduce the rehydration capacity of the dried coriander.