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Nuraini Puji Astuti
Jurusan Teknik Mesin Fakultas Teknik Universitas Brawijaya
Agriculture, Biological Sciences & Forestry Computer Science & IT Mechanical Engineering

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Monitoring System of Oxygen and Carbondioxide in Controlled Atmosphere Storage System Argo, Bambang Dwi; Lastriyanto, Anang; Astuti, Nuraini Puji
Jurnal Teknologi Pertanian Vol 9, No 3 (2008)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

One of the ways in pickling process of main food material of vegetables and fruits is storage. Principally, the control of metabolism during storage, such as respiration, transpiration, disease infection, is designed to lengthen shelf life of horticultural products.  The purpose of storage of fruits and vegetables is to lengthen product utilization, to control market demand, and to increases benefits. So far, the system of controlled atmosphere storage is still done manually either by observation of gas composition or changing gas inside the packaging. Therefore, it is needed to modify equipment for monitoring system and controlling gas automatically, so the changes of gas volume and composition in storage space of CAS can be detected. Equipment applied in this research was microcontroller AT89S51 and its arrangement system by using computer. It had an existence of communication between a microcontroller system and a personal computer through IC RS 232. At this research the oxygen concentration changed from 21% to 2% and the carbon dioxide concentration increased from 0.03% to 2.5% at temperature of 26oC. This condition was suitable for apple var. Rome Beauty storage.Keywords: oxygen, carbon dioxide, CAS, MKAT89S51, personal computer
Sistem Monitoring Gas Oksigen dan Karbondioksida pada Ruang Penyimpanan Sistem Udara Terkontrol Argo, Bambang Dwi; Lastriyanto, Anang; Astuti, Nuraini Puji
Rekayasa Mesin Vol 1, No 3 (2010)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

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Abstract

One of way in pickling process of main food material of vegetable and fruits is storage. In principle metabolism storage, like respiration, transpiration, infection plant diseases and lengthen more durable. Purpose of storage of fruit and vegetable to lengthen product usefulness, controls request of market and increases advantage. At research before all, the system controlled atmosphere storage still be done in manual either from within observation of composition and operation of gas in it. Therefore, need to be done modification of equipment with addition of monitoring system and gas control automatically, so that change of gas volumein storage space of CAS can be detected. Equipment applied in this research is microcontroller AT89S51 and its arrangement system by using computer. With existence of communications between microcontroller system with personal computer through IC RS 232. At this researc happened change of oxygen gas concentration from 21% to 2% and increase of percentage of carbondioxide from 0.03% to 2.5% for temperature 26oC. this matter is according to boundariset wanted for condition of apple atmosphere Rome Beauty.Keywords : Oxygen, carbondioxide, CAS, MKAT89S51, Personal Computer (PC)
Co-Authors Anang Lastriyanto Bambang Dwi Argo