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Polished rice was stored for 24 weeks at 28℃±2℃ after infestation with rice weevil (Sitophilus oryzae), inoculation with a storage mold, or both treatment. The moisture contents of stored rice with and without rice weevil were 16.6% - 17.3% and 13.70% - 14.1% respeotively. Fungal numbers were 4.3 × 10^6/g to 7.2 × 10^6/g with insects while no fungal growth occurred without them. There were considerable differences between rice weevil infested- and non-infested rice in rice kernel hardness, 1000 kernel weight, maximum viscosity on amylogram, reducing sugar content, fat acidity, and n-hexanal content in head space gas.
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