槟榔花热风干燥动力学研究-广东农业科学.PDF

广东农业科学 2014 年第 1怨 期 103 槟榔花热风干燥动力学研究 1 1 1,2 1 1 宋 菲 黄玉 张 明 陈卫军 赵松 1.中国热带农业科学院椰子研究所袁海南 文昌 571339 曰 2.海南大学食品学院袁海南 海口 570228冤 摘要 以新鲜槟榔花为原料袁比较了不同干燥温度下槟榔花的干燥特性遥 通过槟榔花在干燥过程中水分的变 化规律袁绘制干燥曲线和干燥速率曲线袁并采用 Newton 尧Logarithmic 和 Wang and Singh 3 种干燥数学模型拟合试验 数据遥 结果表明袁干燥温度越高袁槟榔花的干燥速率越快袁且整个干燥过程处于降速干燥阶段遥 槟榔花热风干燥过程 满足 Logarithmic 方程袁该模型可较好地描述含水率随干燥时间的变化关系遥试验结果为实现槟榔花干燥过程的控制 提供了技术依据遥 关键词 槟榔花曰 干燥曰 动力学模型 中图分类号 TS201.1 文献标识码 A 文章编号 员园园源原愿苑源载 圆园员源冤员9原0103-04 Kinetic analysis of Areca inflorescence hot air drying 1 1 1,2 1 1 SONG Fei , HUANG Yu-lin , ZHANG Ming , CHEN Wei-j un , ZHAO Song-lin (1. Coconut Re searc h Ins titute , Chinese A cade my of Trop ical A gric ultural Sc ie nc es , W e nc hang 571339, China; 2. Colle ge of Food, Hainan Univ e rs ity, Haikou 570228, China) Abstract: Experiments of hot air drying were conducted to study the drying characteristics of A re ca infloresce nce under different temperatures. W ith the changes of water content, the drying curves and drying rate curves of A . inflore sce nce were made. Newton, Logarithmic and Wang and Singh models were applied to the experimental date. According to the results, the higher temperature, the quicker the drying, and the drying process was in the falling rate drying period. Logarithmic model, which could well describe the changes of water content w ith drying time, gave the best results for explaining the drying characteristics of A . infloresc e nc e. These results can provide a techni