NONDESTRUCTIVE ELECTRICAL-IMPEDANCE ANALYSIS IN FRUIT - NORMAL RIPENING AND INJURIES CHARACTERIZATION

Authors
VARLAN AR SANSEN W
Citation
Ar. Varlan et W. Sansen, NONDESTRUCTIVE ELECTRICAL-IMPEDANCE ANALYSIS IN FRUIT - NORMAL RIPENING AND INJURIES CHARACTERIZATION, Electro- and magnetobiology, 15(3), 1996, pp. 213-227
Citations number
12
Categorie Soggetti
Biophysics
Journal title
Electro- and magnetobiology → ACNP
ISSN journal
10619526
Volume
15
Issue
3
Year of publication
1996
Pages
213 - 227
Database
ISI
SICI code
1061-9526(1996)15:3<213:NEAIF->2.0.ZU;2-I
Abstract
Electrical impedance was measured nondestructively in apples (Malus do mestica) and tomatoes (Lycopersicon esculentum) over the frequency ran ge 20 Hz-1 MHz. Raw data conform to a single time constant model. Frui t classification and data interpretation are based on the analysis of four derived parameters: low-frequency resistance R(L), high-frequency resistance R(H) constant phase angle (Phi) and characteristic frequen cy f(0). The most sensitive parameters to ripening and injuries have p roven to be low-frequency resistance and constant phase angle.