Conducted by LSPU Siniloan
, Started on 2015 -
Completed on 2016
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A charcoal-insulated storage bin for grains was designed and evaluated. The headspace
temperature and humidity were observed for four months. Paddy temperature and moisture content were
monitored at 8:00am, 12:00 noon, 4:00 pm and 8:00 pm from three observation points located at the bottom,
middle and top sections of the stored rice. For comparison purposes properties of stored rice in hermetic bags,
(woven plastic) polybags and insulated bin, each containing 500 kg were monitored during four months of
storage. Headspace temperature did not change in four months while humidity increased after three months.
The insulated bin was able to reduce temperature fluctuation on different locations of the bin at different times
of the day. Paddy temperature and moisture content were maintained at safe storage level. Moisture migration
and hot spots were not detected. No sign of rotting was reported. Insect presence were greatly reduced. There
were no losses due to rodents and birds. Seed viability in the bin was lowest among the storage systems
compared in this study. Milling quality was best due to least amount of cracked grains.