食品科学 ›› 2012, Vol. 33 ›› Issue (11): 111-115.doi: 10.7506/spkx1002-6630-201211025

• 基础研究 • 上一篇    下一篇

牡蛎微波干燥特性及动力学研究

余 炼,颜栋美*,侯金东   

  1. 广西大学轻工与食品工程学院
  • 出版日期:2012-06-15 发布日期:2012-07-27
  • 基金资助:
    广西自然科学基金项目(桂科自0991033)

Characteristics and Kinetics of Microwave Drying for Oyster

YU Lian,YAN Dong-mei*,HOU Jin-dong   

  1. (College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China)
  • Online:2012-06-15 Published:2012-07-27

摘要: 测定不同微波强度下牡蛎干燥水分曲线及失水速率曲线,考察不同微波强度对牡蛎干制品的复水增重率、收缩率、色差等品质方面的影响。结果表明:增大微波干燥强度可提高干燥速率,缩短干燥时间。在实验条件下,采用中等强度的微波干燥(如5、8W/g),牡蛎微波干燥时间在3.5~30min范围内。牡蛎品质较好。用Page方程建立的牡蛎微波干燥模型,与实验测定值的拟合度较高。

关键词: 牡蛎, 微波干燥, 动力学

Abstract: Water content and dehydration rate of oyster subjected to microwave drying at various microwave intensities were determined. The effect of microwave intensity on rehydration rate, shrinkage rate and surface color of dried oyster were explored. The results showed that dehydration rate was improved and drying time was shortened with increasing microwave intensity. The time required for microwave drying of oyster was in the range of 3.5-30 min. Microwave dried oyster at middle intensity level such as 5 W/g or 8 W/g revealed better quality. A microwave drying kinetic model was established by the Page equation with excellent fitting degree.

Key words: oyster, microwave drying, kinetics

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