The Preservability of Paddy Half-dried to Different Moisture Content during Temporary Storege

[摘要] Rice producing districts in Japan have many common facilities which dry and winnow the paddy. Then, these facilities are called "Rice Center". In these facilities, it has been happened the necessity of the temporary storage of paddy dried to 18% moisture content, owing to the small scale of their handling capacities. Accordingly, this experiment was undertaken in order to investigate the preservability of paddy during temporary storage. Paddy half-dried to different moisture content (16%, 18% and 20%) were stored in the desiccaters which have different relative humidities (65%, 75% and 85%) at 20°C during about two months, and moisture content, viability of embryo stained by triphenyl tetrazolium chloride, fat acidity and contaminated grain by microorganisms were mainly measured on husked rice after taking of the hull. As the results, it was recognized as follows: these paddy can be safely stored within 15 or 20 days, when their moisture contents were kept always from 18 to 19% during the storage. On the other hand, when the moisture content of paddy was less than 16%, this paddy can be safely stored all through the storage period.

[学科分类] 农业科学（综合）