食品科学 ›› 2009, Vol. 30 ›› Issue (19 ): 65-69.doi: 10.7506/spkx1002-6630-200919012

• 基础研究 • 上一篇    下一篇

辣椒粉的微波干燥特性研究

周 旺,程裕东* ,张云蓉   

  1. 上海海洋大学食品学院
  • 收稿日期:2009-05-10 出版日期:2009-10-01 发布日期:2010-12-29
  • 通讯作者: 程裕东* E-mail:ydcheng@shou.edu.cn
  • 基金资助:

    上海市科学技术委员会攻关项目(063919136) ;上海海洋大学研究生科研基金项目 (A-2501-09-0000-87096)

Microwave Drying Characteristics of Paprika Powder

ZHOU Wang,CHENG Yu-dong*,ZHANG Yun-rong   

  1. College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
  • Received:2009-05-10 Online:2009-10-01 Published:2010-12-29
  • Contact: CHENG Yu-dong*, E-mail:ydcheng@shou.edu.cn

摘要:

利用功率分别为710、475、160W 的微波对样品进行微波干燥,同时分别在40、50、60℃的条件下进行热风干燥实验对比。考察样品的干燥特性,并引入薄层干燥模型进行数值分析。结果表明,Page 模型很好地预测和描述了样品的干燥特性。应用Fick 扩散模型,计算得出微波干燥的有效扩散系数分别为2.9668 × 10-8(710W)、1.7023 × 10-8(475W)、1.1028 × 10-8(160W);热风干燥的有效扩散系数分别为0.0811 × 10-8(40℃)、0.1135 × 10-8(50℃)、0.1621 × 10-8(60℃)。

关键词: 辣椒粉, 微波干燥, 干燥特性, 薄层干燥模型

Abstract:

Thin layer drying characteristics of paprika powder were investigated in microwave drying at powers of 710, 475, and 160 W and were compared with those in traditional air dying at 40, 50 and 60℃. Page model exhibited good prediction according to mathematical analysis of thin layer drying model. Meanwhile, moisture transfer from paprika powder was described by applying Fick’s diffusion model. The effective diffusion coefficients of moisture transfer were 2.9668 × 10-8 (710 W), 1.7023 × 10-8 (475 W) and 1.1028 × 10-8 (160 W) by microwave drying, 0.0811 × 10-8 (40℃ ), 0.1135 × 10-8 (50℃) and 0.1621 × 10-8 (60 ℃ ) by hot-air drying, respectively.

Key words: paprika powder, microwave drying, drying characteristics, model of thin-layer drying

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