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Title: 冬季の寒冷外気を利用した籾の超低温貯蔵技術の開発と普及
Other Titles: Development and Extension of Techniques for Super-Low-Temperature Storage of Rough Rice Using Fresh Chilly Air in Winter
Authors: 川村, 周三1 Browse this author →KAKEN DB
竹倉, 憲弘2 Browse this author
小河, 健伸3 Browse this author
伊藤, 和彦4 Browse this author
Authors(alt): KAWAMURA, Shuso1
TAKEKURA, Kazuhiro2
OGAWA, Takenobu3
ITOH, Kazuhiko4
Keywords: カントリーエレベータ(穀物共同乾燥調製貯蔵施設)
Country elevator
Natural low temperature energy
Rice quality
Super-low-temperature storage
Issue Date: 2003
Publisher: 低温生物工学会
Journal Title: 低温生物工学会誌
Journal Title(alt): Cryobiology and Cryotechnology
Volume: 49
Issue: 2
Start Page: 119
End Page: 124
Publisher DOI: 10.20585/cryobolcryotechnol.49.2_119
Abstract: 冬季の寒冷外気をサイロ内に通風し籾の冷却を行うことにより,サイロ内の籾温度はすべて氷点下となり,実用施設で籾の超低温貯蔵が可能であることが実証された.貯蔵終了時(夏季)にはサイロ中心部と内壁付近の籾との穀温差が生じた.しかし,この穀温差は品質に悪影響を与えなかった.貯蔵後の籾は新米と同様な良い品質であった.本試験により確立した超低温貯蔵は,寒冷地の自然環境を有効に利用し,低コスト省エネルギで高品質米を供給する貯蔵技術である.この技術開発により北海道では,籾貯蔵施設の普及が急速に進み,2002年までに23カ所に施設が建設され,籾貯蔵能力は合計で約10万4千tとなった.
The objective of this project was to develop new on-farm rice storage techniques at a temperature below ice point, known as super-low-temperature storage, using fresh chilly air in winter. Two on-farm storage experiments were conducted in two country elevators in Hokkaido from 1996 to 2000. When rough rice was aerated from the bottom to the top of the silo in winter, the temperature of whole rice grains in the silo fell below ice point. At the end of the storage period in summer, the temperature of rice grains in the center of the silo was still below ice point, whereas the temperature of rice grains near the silo wall increased to about 20℃. However, there was no deterioration in the quality of rice grains near the silo wall. The quality of rice stored in the silo was preserved at a level similar to that of freshly harvested rice. The combination of rice storage at a temperature below ice point and utilization of fresh chilly air in winter enables the quality of rice to be preserved at a high level without the requirement of any cooling unit and electricity. The use of new techniques for super-low-temperature storage in cold regions of Japan has been increasing in recent years. In Hokkaido, 23 country elevators have been constructed since 1996. The total storage capacity of rough rice in Hokkaido has been increasing in recent years and reached 104,000 t in 2002.
Rights: © 2003 低温生物工学会
© 2003 Japanese Society of Cryobiology and Cryotechnology
Type: article
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 川村 周三

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