机构地区: 仲恺农业工程学院轻工食品学院
出 处: 《食品工业》 2011年第8期73-76,共4页
摘 要: 研究了一定条件下风速与风温对经烫漂预处理的新会大红柑皮热风干燥过程的影响,拟合了干燥曲线方程,并计算了临界含水量、传热膜系数α与传质系数kH等热风干燥动力学参数。而各条件下的新会大红柑皮干燥曲线均符合Page方程。新会大红柑皮干燥过程中的传热膜系数α与传质系数KH受风机频率影响明显,且随风机频率增大而增大,但两者受干燥温度的影响较小。在风温80℃、风速50Hz下得到的成品,橘皮外观颜色为橘红色,表面干燥,水分含量少,果皮较硬,有柑的独特芳香味且比新鲜的柑皮香味更浓郁。 The effect of the hot wind speed and temperature on the drying properties of pretreated peel of Guangdong Xinhui Dahonggan with hot air under certain condition has been studied.The dry curve equation were fitted.The drying dynamics parameter,such as the critical water content,heat transmission membrane coefficient α andquality transmission coefficient kH were calculated.The peel of Guangdong Xinhui Dahonggan drying equation accords with the Page model.As the hot wind speed rises,α and kH were increased,but the wind temperature has little effect on the two coefficient.Products dried at conditions of 50 Hz and 80 ℃ obtained good characteristics with good flavor and color.