Evaluation of Freshness of Fresh-cut Lettuce based on Electrical Impedance Analysis

2016 ◽  
Vol 136 (10) ◽  
pp. 613-620
Author(s):  
Yasumasa Ando ◽  
Yuka Maeda ◽  
Koichi Mizutani ◽  
Naoto Wakatsuki
Keyword(s):  
Electrical Impedance ◽  
Impedance Analysis ◽  
Fresh Cut

scholarly journals Assessing the supercooling of fresh-cut onions at −5°C using electrical impedance analysis

2020 ◽  
Vol 4 (2) ◽  
pp. 55-58
Author(s):  
Shoji Koide ◽  
Ami Yoneyama ◽  
Takahiro Orikasa ◽  
Matsuo Uemura
Keyword(s):  
Cell Membrane ◽  
Electrical Impedance ◽  
Freezing Point ◽  
Impedance Analysis ◽  
Electrical Impedance Spectroscopy ◽  
Cole Plot ◽  
Supercooling Point ◽  
Circular Arc ◽  
Two Samples ◽  
Fresh Cut

Abstract We supercooled fresh-cut onion at −5°C for 12 h. After supercooling, the electric impedance properties of the samples were evaluated by electrical impedance spectroscopy over the frequency range of 42 Hz − 5 MHz. The time-temperature profiles of samples indicated that the freezing point and supercooling point were −2.3°C ± 0.7°C and −6.9°C ± 1.0°C, respectively. The results indicated that 34 of the 36 supercooled samples exhibited a definite circular arc in the Cole-Cole plot, which suggested that the cell membrane remained intact during supercooling. In the other two samples which did not exhibit a definite circular arc, the cell membrane had sustained serious damage during supercooling. Furthermore, there was large difference in drip loss percentage between supercooled samples exhibited a definite circular arc in the Cole-Cole plot and samples not exhibiting a definite circular arc. Our results suggest that fresh-cut onions can be supercooled at −5°C.

Celery Electronics

MRS Advances ◽  
2020 ◽  
Vol 5 (16) ◽  
pp. 847-853
Author(s):  
Rhiannon Morris ◽  
Holly Warren ◽  
Marc in het Panhuis
Keyword(s):  
Heavy Metal ◽  
Conducting Polymers ◽  
Conducting Polymer ◽  
Energy Production ◽  
Electrical Impedance ◽  
Vascular System ◽  
Impedance Analysis ◽  
Living System ◽  
Electronic Circuits ◽  
Heavy Metal Waste

ABSTRACTPlants produce energy in a sustainable way, they are very effective in converting light energy into a useable form. Utilising certain parts of plants in technology could become an efficient way to enhance energy production and improve sustainability. Integrating plants with technology would offer a ‘green’ way of producing elements for electronic circuits and reduce heavy metal waste. In this paper, we demonstrate that conducting polymers can be incorporated into living system such as celery. Electrical impedance analysis was used to establish the conductivity of celery with a conducting polymer (PEDOT:PSS) into its vascular system. It was demonstrated that electronic celery exhibited conductivity values of up to 0.55 ± 0.03 S/cm. This conductivity value was sufficient to demonstrate the potential of celery electronics where celery stalks are used as electrodes in simple circuits.

Bio-Electrical Impedance Analysis in Patients with Critical Illnesses

2016 ◽  
Vol 9 (1) ◽  
Author(s):  
Mojgan Jalalzadeh ◽  
Mohammadreza Hajiesmaeili
Keyword(s):  
Electrical Impedance ◽  
Impedance Analysis

Body composition of children in south-western Nigeria: validation of bio-electrical impedance analysis

2003 ◽  
Vol 23 (1) ◽  
pp. 61-67 ◽  
Author(s):  
Cinthia R. Leman ◽  
Adebowale A. Adeyemo ◽  
Dale A. Schoeller ◽  
Richard S. Cooper ◽  
Amy Luke
Keyword(s):  
Body Composition ◽  
Electrical Impedance ◽  
Impedance Analysis

Electrical Impedance Analysis in Plant Tissues8

1993 ◽  
Vol 44 (8) ◽  
pp. 1369-1375 ◽  
Author(s):  
M. I. N. ZHANG ◽  
J. H. M. WILLISON
Keyword(s):  
Electrical Impedance ◽  
Impedance Analysis
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