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ID 17477
file
title alternative
Nondetructive and noncontact measurement of flesh firmness of 6 apple cultivars by laser dopplar vibrometer (LDV)
creator
元村 佳恵
長尾 多実子
NDC
Agriculture
abstract
For the investigation of non-destructive measurement of fruit firmness, 6 cultivars of fruit were stored at 20 degree after harvest. Every week, using 5-10 fruits, the frequency of second resonance of individual fruit were measured by a Laser Doppler Vibrometer(LDV) non-destructively, and the elastic indexes were calculated with the second resonance and fresh weight. Thereafter, the fresh firmness was measured by ordinary destructive method with the Magnes-Tsylor fruit firmness tester. From the correlation coefficient between the elastic indexes and the firmness, the possibility to measure the flesh firmness of 6 apple cultivars by LDV method was evaluated. As the result, in 'Natsumidori', 'Iwai', 'Tsugaru', and 'Starking Delicious', the correlation coefficients were over 0.89, a practical possibility of this method was suggested. In 'Fuji' and 'Goden Delicious', however, the correlation coefficients were lower than 0.73, and 0.66, respectively. In these two cultivars, further analysis on this method are proceeding for the practical application
journal title
日本食品科学工学雑誌
volume
Volume 51
issue
Issue 9
start page
483
end page
490
date of issued
2004
publisher
日本食品工学会
issn
1341-027X
ncid
language
jpn
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
text version
publisher
rights
Copyright (c) 2004 社団法人日本食品科学工学会
department
Graduate School of Biosphere Science