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ID 27693
本文ファイル
著者
Taniwaki, Mitsuru
Hanada, Takanori
Tohro, Minami
キーワード
Fruit ripening
Storage
Laser Doppler vibrometer
Piezoelectric sensor
NDC
植物学
抄録(英)
We investigated the time-course changes in the elasticity index (El) and texture index (TI) of pears (Pyrus communis L. cv. La France) during the postharvest period. EI was determined using a formula EI = f(2)(2)m(2/3), where f(2) is the pear sample's second resonance frequency and m is the sample mass. A non-destructive vibrational method using a laser Doppler vibrometer (LDV) was used to measure the pears' second resonance frequency (f(2)). Changes in the EI of the pears showed bi-phasic decay. Along with sensory testing, we determiner) the period of optimum eating ripeness of the pears in terms of their EI to be 8.1 x 10(4)-1.5 x 10(5) kg(2/3) Hz(2). Pre-determined EI of pears enables consumers to predict the time range of optimum eating ripeness. An improved device for texture measurement was used for measuring time-course changes in the texture of pears. The texture was quantified with TI, which was determined for 18 frequency bands through integration of squared amplitudes of texture signals multiplied using a factor of a frequency band. The TI declined gradually over a wide frequency range as the pear samples ripened.
掲載誌名
Postharvest Biology and Technology
51巻
3号
開始ページ
305
終了ページ
310
出版年月日
2009
出版者
Elsevier Science BV
ISSN
0925-5214
NCID
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
author
権利情報
Copyright (c) 2008 Elsevier B.V.
関連情報URL
部局名
産学・地域連携センター