Acoustic impulse response in apple tissues treated by pulsed electric field

被引:43
|
作者
Grimi, Nabil [1 ]
Mamouni, Fatine [2 ]
Lebovka, Nikolai [1 ,3 ]
Vorobiev, Eugene [1 ]
Vaxelaire, Jean [4 ]
机构
[1] Univ Technol Compiegne, Ctr Rech Royallieu, Dept Genie Chim, F-60205 Compiegne, France
[2] Univ Sultan Moulay Slimane, Fac Sci & Tech, Beni Mellal, Morocco
[3] NAS Ukraine, Inst Biocolloidal Chem, UA-03142 Kiev, Ukraine
[4] Univ Pau & Pays Adour, Lab Therm Energet & Procedes, ENSGTI, F-64075 Pau, France
关键词
QUALITY EVALUATION; POTATO TISSUE; FIRMNESS; FRUIT; BEHAVIOR; INTACT; MODEL;
D O I
10.1016/j.biosystemseng.2009.11.005
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
This work discusses application of acoustically-derived index of disintegration for characterization of pulsed electric field (PEF)-treated whole apples in aqueous media. It was demonstrated that PEF efficiency was dependent on the conductivity of the aqueous media and orientation of the apple with respect to the external field. Electrical treatment also stimulated transient changes after PEF application in acoustic disintegration index (Z(a)). Relation between the conductivity disintegration index (Z(c)) and Z(a) was established. A nonlinear relation between Z(c) and Z(a) was observed and it was demonstrated that the Z(a) value seems to be a better measure of the real degree of damage than the widely used value of Z(c). (C) 2009 IAgrE. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:266 / 272
页数:7
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