High electric field drying of Japanese radish

被引：78

作者：

Bajgai, TR ^{[1
]}

Hashinaga, F ^{[1
]}

机构：

[1] Kagoshima Univ, Fac Agr, Kagoshima 8900065, Japan

来源：

DRYING TECHNOLOGY | 2001年 / 19卷 / 09期

关键词：

color; high electric field; Japanese radish; non-thermal drying; rehydration ratio; shrinkage; water absorption;

D O I：

10.1081/DRT-100107499

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Japanese radish (Raphanus sativus L.) slices were dried under an alternating current (AC) high electric field (HEF) of 430kV/rn using a multiple point electrode and a grounded copper mesh. HEF with multipoint to a mesh electrode system could evaporate 87.5% of the total moisture from fresh radish slices on 7h exposure. Oven-drying at 60 degreesC and ambient air at 25 degreesC for 7 h could dry 86.9% and 26.5% of the total moisture from the fresh radish slices respectively. The average rate of HEF drying from second hour to sixth hour was 0.025 g/min which was 0.00 12 g/min higher than the oven-drying. Quality factors for HEF-dried radish exhibited less shrinkage, high absorption of water, better rehydration, less solids loss and better color than the oven-drying.

引用

页码：2291 / 2302

页数：12