The Drying Strategy of Atmospheric Freeze Drying Apple Cubes Based on Glass Transition

摘要：

Freeze drying (FD) yields the best quality of dried apple cubes but at the cost of long drying time and also the overall cost. To achieve economical freeze drying along with a high quality product, an atmospheric freeze drying (AFD) technique was developed. Nevertheless, the drying time of conventional AFD was much longer than that of FD. Thus, the effect of different air temperature profiles during AFD on the product quality and drying process were studied. According to the glass transition temperature of apple, a drying strategy using step-up temperature profile was developed to reduce the drying time by almost half compared to conventional temperature profiles, and a similar good product quality was obtained.

关键词： apple atmospheric freeze drying alass transition

作者: Xu Duan Guangyue Ren Wenxue Zhu

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

会议类型: 国际会议

会议名称: The 2012 International Conference of Agricultural Engineering and Food Engineering(2012年国际农业工程与食品工程学术会议 ICAE 2012)

会议地点: 哈尔滨

会议语种:英文

页码: 809-812

在线出版日期: 2012-06-16（万方平台首次上网日期，不代表论文的发表时间）