文献类型：期刊文献

中文题名：响应面试验优化漂白紫胶流化床干燥工艺

英文题名：Optimization of Fluidized Bed Drying Process of Bleached Shellac

作者：涂行浩[1] 李坤[2] 张弘[2] 郑华[2] 杜丽清[1] 张雯雯[2] 李凯[2]

第一作者：涂行浩

通信作者：Zhang, Hong|[a00050201897da7fe7284]张弘;

机构：[1]中国热带农业科学院南亚热带作物研究所,农业部热带果树生物学重点实验室,广东湛江524091;[2]中国林业科学研究院资源昆虫研究所,国家林业局特色森林资源工程技术研究中心,云南昆明650224

年份：2017

卷号：38

期号：2

起止页码：233-239

中文期刊名：食品科学

外文期刊名：Food Science

收录：CSTPCD;;EI(收录号：20171003409412);Scopus;北大核心:【北大核心2014】；CSCD:【CSCD_E2017_2018】；

基金：国家高技术研究发展计划(863计划)项目(2014AA021801)

语种：中文

中文关键词：漂白紫胶;流化床干燥;响应面法

外文关键词：bleach shellac; fluidized bed drying; response surface methodology

分类号：TS202.3;TQ351.7

摘要：采用流化床干燥漂白紫胶,以期对漂白紫胶在较低温度条件下进行快速干燥。通过单因素试验,考察进气温度及空气流量2个主要因素对漂白紫胶颜色指数及干燥时间的影响,用响应面法设计试验并建立了流化床干燥条件下的回归模型。结果表明:预测值和实测值的一致性较好,误差为1.12%,所建立的数学模型(颜色指数R2为0.949 1,干燥时间R2为0.937 7)可以用于描述和预测漂白紫胶流化床干燥。得到的较优操作条件为进气温度36℃、空气流量45 m3/h条件下干燥28 min,可以得到颜色指数为0.90的漂白紫胶,其指标符合国家精制漂白紫胶1级标准。
In this study, bleached shellac was dried with fluidized bed for the purpose of raid drying at lower temperatures.The two main factors, including inlet air temperature and air flow rate, which influence the product color index and drying time, were investigated using one-factor-at-a-time method and response surface methodology (RSM) with central composite experimental design. A regression model was established for each response. The results showed that the predicted value agreed well with the measured one, with an error of only 1.12% and that the two models (R2 = 0.949 1 for color index,R2 = 0.937 7 for drying time) could be used for describing and predicting the fluidized bed drying of bleached shellac. The optimal operating conditions were determined as follows: drying at 36 ℃ at an air flow rate of 45 m3/h for 28 min, resulting in a color index of 0.90. The dried product reached the Chinese national standard for the highest quality grade of refined bleached shellac.