Microwave Freeze Drying of Apple Slices Based on the Dielectric Properties

摘要：

Freeze drying (FD) yields the best quality of dried apple slices but at the cost of long drying time and also the overall cost.Air drying (AD) gives an unacceptably poor quality product.To achieve faster drying along with a high quality product a microwave freeze drying (MFD) technique was developed to dry apple slices.The relationship between corona discharge and microwave power at various pressures and initial moisture content conditions was studied to avoid the possibility of corona discharge during MFD.According to the dielectric properties of apple, a control strategy for the MFD process was also developed.MFD reduced the drying time by about half of conventional FD process and provided a similar good product quality.

关键词： Apple Microwave freeze drying Dielectric property

作者: Duan Xu Ren Guang yue Zhu Wen Xue

作者单位: Food and Biology Engineering College,Henan University of Science & Technology,Luoyang ，471003,China

会议类型: 国际会议

会议名称: The 7th Asia-Pacific Drying Conference(第七届亚太地区干燥会议 ADC2011)

会议地点: 天津

会议语种:英文

页码: 1-7

在线出版日期: 2011-09-18（万方平台首次上网日期，不代表论文的发表时间）