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ID 23506
file
46-1593.pdf 1.28 MB
title alternative
Studies on Simple Convenient Microwave Heated Drying Instrument and on Microwave Drying of Potato
creator
Kubota, Kiyoshi
Ro, Rentsu
Yamashita, Yousuke
Okazaki, Takashi
Mochizuki, Hironori
Kurokawa, Masayuki
NDC
Domestic arts and sciences
abstract
各種マイクロ波加熱の装置設計を進めていくためには、クッキング、乾燥などの加工処理速度の測定と、加工処理速度式の設定に関する研究を進めていくことが必要となる。前報において、ジャガイモのマイクロ波加熱におけるクッキング速度式の設定に関する研究を行って報告した。本研究では、ジャガイモなどを例として、マイクロ波加熱における乾燥速度式の設定に関する研究を行った。食品の乾燥速度の測定には、電子レンジを使用してきた。乾燥試料を、重量測定のために電子レンジから取り出してきた。本研究では、重量-時間の関係が自動記録で得られる改良を行ったマイクロ波加熱乾燥装置を製作した。熱風流通の乾燥では、ジャガイモなどの乾燥速度を等温条件下の実験で得ることができた。マイクロ波加熱の乾燥では、非等温条件下の実験となり、速度式の設定が困難となる。熱電対を電子レンジ内に入れて試料温度を連続的に測定できなく、マイクロ波加熱の乾燥速度式に関する報告は皆無と言える。本研究では、簡便な経験速度式を使って乾燥速度式を設定する方法について研究を行った。
abstract
In order to design various microwave heating apparatuses, it is necessary to measure the transforming rate such as cooking, drying rates and so on, and establish the transforming rate equation. In previous papers, we have studied th cooking-rate equation by microwave heated cooking of potato slices. In this paper, we studied the drying-rate equation by microwave heated drying of potato and so on. An electronic ranges have been used for measurement of the degree of drying of foodstuffs. The drying sample was quickly taken out from the range in order to measure the weight. Therefore, we designed in this study an improved instrument which the weight-time relationship of sample can be obtained continuously on the recoder. The values of the drying-rate of the potato and so on for air flow type drying could be measurd by means of the experimental method consisted constant temperature sytem. However, the experiments for microwave heated drying must be studied by the temperature unsteady-state system. The determintion method of the rate equation is more difficult than the former one. The temperature of the sample can not be measured continuously, because the thermocouple can not be treated in the electronic range. Therefore, we can not see the report according to the drying-rate equation for microwave heated drying. In this paper, we studied the drying-rate equation by using the simple empirical rate equations that have been reported in a previous papers.
journal title
Journal of the Faculty of Applied Biological Science, Hiroshima University
volume
Volume 29
issue
Issue 1
start page
51
end page
62
date of issued
1990-07
publisher
広島大学生物生産学部
農林水産研究情報センター
issn
0387-7647
ncid
SelfDOI
language
jpn
nii type
Departmental Bulletin Paper
HU type
Departmental Bulletin Papers
DCMI type
text
format
application/pdf
text version
publisher
department
Graduate School of Biosphere Science
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