Drying characteristics of pulsed electric field-treated carrot

被引：33
|
作者：
Gachovska, T. K. [1 ]
Adedeji, A. A. [1 ]
Ngadi, M. [1 ]
Raghavan, G. V. S. [1 ]
机构：
[1] McGill Univ, Dept Bioresource Engn, Ste Anne De Bellevue, PQ, Canada
来源：
DRYING TECHNOLOGY | 2008年 / 26卷 / 10期
基金：
加拿大自然科学与工程研究理事会;
关键词：
carrot; coefficient of diffusivity; electropermeabilization; PEF; pretreatment; pulsed electric field;
D O I：
10.1080/07373930802307175
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
This study was designed to establish the interaction effect of various components of pulsed electric field (PEF) system on drying characteristics of carrot, a vegetable rich in carotenoid. Carrots were treated in PEF system of 0.5, 1, and 1.5kV/cm electric field strength, 0.5 and 1 mu F capacitance, and pulse numbers of 10, 30, and 50. The samples were subsequently dried at 70 degrees C until reaching an acceptable moisture content level. Drying rates were significantly (P < 0.05) influenced by PEF treatment. Variation in drying constant was not significantly influenced by the interaction effect of electric field components but by the energy per pulse. The Henderson and Perry model was fitted to the drying curve and it gave correlation coefficients ranging between 0.86 and 0.96.
引用
收藏
页码：1244 / 1250
页数：7
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