SISTEM MONITORING GAS OKSIGEN DAN KARBONDIOKSIDA PADA RUANG PENYIMPANAN SISTEM UDARA TERKONTROL
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
Penulis: Bambang Dwi Argo,
Anang Lastriyanto, Nuraini Puji Astuti
Kode Jurnal: jppertaniandd080019
