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겨울철 자연(통풍)냉각과 상부 쿨링시스템을 이용한 남부 지역의 벼 고품질 유지를 위한 저온저장기술 개발
녕효봉,사공문,함택모,조성찬 忠北大學校 農業科學硏究所 2012 農業科學硏究 Vol.28 No.2
The purpose of this study is to investigate the storage characteristics of rough rice in a low temperature storage and dry bin using cooling system. The results were compared with the storage method of ambient temperature bin. The rough rice storage characteristics were evaluated from February to August 2010, using a storage and dry bin of 500 ton capacity. The results were as followings: Storage and dry bin using cooling system maintained the rice temperature less than 15oC over the storage period. The rough rice stored in the ambient temperature bin showed higher moisture content and lower germination rate than the rough rice stored in the bin using cooling system. The creaked rate and acid value of brown rice in the cooling bin storage increased less than the ambient temperature bin storage. The result indicates that storage bin using winter cold air and cooling system showed better maintaining germination of rice, less change of physiological activities and cracked kernel, and better maintaining of rice quality, comparing the ambient temperature bin
겨울철 냉기를 이용한 벼의 저온저장(I) - 벼 냉각 후 저장특성 -
이재석,한충수,함택모,연광석,Lee J. S.,Han C. S.,Ham T. M.,Yon K. S. 한국농업기계학회 2005 바이오시스템공학 Vol.30 No.3
The objective of this research was to establish a domestically available cooling storage technique by cold-air in winter, using winter cool air ventilation fur determining rough rice cooling method in the storage and dry bin. The rough rice storage characteristics of two test conditions, winter cool-air ventilation storage and ambient temperature storage, were evaluated from January to July 2001, using a storage and dry bin of 300-ton capacity. Results of this research are as follows: Grain temperature was from $-5.1\~-8.5^{\circ}C$ after winter cool-air ventilation, and grain initial temperature for ambient temperature bin storage was $0.3\~1.9^{\circ}C$. Moisture content of rough rice decreased from $0.28\;to\;0.93\%$ and from $1.53\;to\;1.92\%$ to compare with original moisture contents for winter cool-air ventilation, and for ambient temperature bin storage, respectively. Broken ratio of brown rice from winter cool-air ventilation bin increased from $0.16\;to\; 0.92\%$, and brown rice broken ratio was from $2.24\;to\;2.86\%$ for ambient temperature bin storage to compare with initial broken ratio. Hardness of stored rice increased along storage period increase in alt storage methods, and cooling bin storage increased rice hardness of 0.271kgf: this increasing was lower then the other methods from 0.059 to 2.239kgf. Germination rates were decreased approximately 9.03, 3.14 and $3.20\%$ for upper, middle, and bottom of ventilating winter air bin, respectively, and germination rates of 2.70, 3.47 and $4.14\%$ were approximately decreased for upper, middle, and bottom parts of ambient temperature bin storage, respectively.