|Table of Contents|

The Correlation Between Dielectric Properties and the Intrinsic Quality of ‘Lingwu long jujube’(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2014年11期
Page:
1-6
Research Field:
Publishing date:

Info

Title:
The Correlation Between Dielectric Properties and the Intrinsic Quality of ‘Lingwu long jujube’
Author(s):
GUO Xiao-dan; ZHANG Hai-hong; ZHOU Shi-ping; ZHANG Zhong; LI Hai-feng
College of Agriculture,Ningxia University,Yinchuan,Ningxia 750021
Keywords:
‘Lingwu long jujube’; dielectric properties; internal quality
PACS:
S 665.1
DOI:
-
Abstract:
Taking ‘Lingwu long jujube’ as material,electrical indicators in shelf such as parallel equivalent capacitance(Cp),conductance(G),impedance angle(θ),complex impedance(Z) were tested using the LCR tester in the characteristic frequency of 223.8 kHz (105.35kHz),and analyzed comparatively with physicmechanical indexes such as peel repute strength,brittleness and pulp firmness,and chemical quality indicators such as water content,titratable acid content and soluble solids content,highly correlated characteristic electrical parameters were selected;regression analysis of variation law of electrical parameters and quality indicators was conducted,the study was to explore the feasibility of dielectric properties based jujube fruit nondestructive testing and intrinsic quality evaluation.The results showed that correlation between jujube quality indicators (peel repute strength,brittleness,pulp firmness,moisture content,total soluble solids) and dielectric parameters (Cp,G,θ,Z) was high and reached a significant level (P<0.05).Electrical parameter model established for jujube quality indicators could effectively predict long jujube quality.It’s feasible to predict the inner quality of ‘Lingwu long jujube’ by its dielectric characteristic parameters.

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Last Update: 2014-08-04