Effect of low temperature long time blanching on quality of dried sweet potato

被引:21
作者
MorenoPerez, LF [1 ]
GassonLara, JH [1 ]
OrtegaRivas, E [1 ]
机构
[1] UNIV CHIHUAHUA,GRAD PROGRAM FOOD SCI & TECHNOL,CHIHUAHUA,MEXICO
关键词
drying rate; enzyme inactivation; rehydration; texture attributes; thermal diffusion coefficient;
D O I
10.1080/07373939608917177
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Combining low temperature, long time blanching with moderate temperature drying very positively affected the textural characteristics of dehydrated sweet potato. Ten mm cubes of this tuber were slow-blanched at 60, 65 and 70 degrees C for 15 and 45 minutes, then conventionally blanched at 94 degrees C three minutes and, finally dehydrated in a cabinet dryer at 70 and 85 degrees C for a maximum of 195 minutes. The final product showed optimum texture attributes for the blanching treatment of 65 degrees C for 15 minutes followed by the flash blanching and the drying process at 70 degrees C for 120 minutes.
引用
收藏
页码:1839 / 1857
页数:19
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