한국농화학회 발표요지 : 왕겨의 팽화 (膨化) 이용에 관한 연구

한판주,오영탁,박남규 한국토양비료학회 1982 한국토양비료학회 학술발표회 Vol.1982 No.28

米穀의 常溫貯藏中 相對溫度에 따른 水分含量變化에 關한 硏究

韓判柱 圓光大學校大學院 1979 學位論叢 Vol.2 No.-

Tongil and the common rice variety, Jinheung of the second class produced in Hwasong-Kun , Kyunggi province were processed into rough rice, brown nice and white nice and equilibrium moisture contents were found out at different relative humidities. After moisture contents of Tongil rough rice were adjusted to 13, 14, 15, 16 and 17%, they were stored in the A-type warehouse at atmospheric temperature. During storage, changes in moisture content and weight were observed. Results obtained are as following. 1. After three weeks of the experiment equilibrium moisture contents were obtained in various relative humidities at 25℃. Equilibrium moisture content of Tongil brown rice was slightly less than that of the common brown rice. 2. Equilibrium moisture content of brown rice was the highest, that of white rice next and that of rough rice was the least. 3. Temperature and relative humidity conditions both inside and outside the warehouse showed a similar trend. The variation coefficient of relative humidity inside the warehouse 5.44% but that was outside the warehouse was 7.09%. Therefore the variation coefficient of relative humidity inside the warehouse was less than that outside. 4. Moisture contents changed toward 15% to 16%. Also the variation in moisture contents increased as the moisture contents were farther from 15% to 16%. 5. At higher moisture content, more weight loss occured. Therefore, at the end of storage weight of the 17% moisture content plot was 96.67% while that 13% moisture content plot was 99.7% of the start weight.

米穀의 貯藏方法에 따른 理化學的 變化와 熱特性에 關한 硏究

韓判柱 圓光大學校大學院 1982 學位論叢 Vol.9-2 No.-

貯藏米穀의 平衡水分含量, 呼吸量,熱特性 및 貯藏方法에 따른 理化學的 變化等에 關한 硏究結果의 要約은 다음과 같다. 1. 米穀의 水分含量은 外氣의 相對濕度에 따라 水分活性度가 平衡이 이루어지는 方向으로 變化하며 初期에 水分含量의 變化速가 빠르고 統一의 平衡水分含量은 振興보다 0.2내지 0.8% 낮았다. 2. 米穀의 平衡水分含量에는 履歷劫果가 認定되며 同一한 濕度下에서도 吸濕時가 放濕時보다 平衡水分含量이 1내지 2% 程度낮았다. 3. 米穀의 吸濕熱은 水分含量이 6, 8, 12 및 15%인 正租에서 各各 1.98, 1.35, 0.81 및 0.32cal/g으로 水分含量이 낮을 수록 높았다. 4. 正租이 冷却時 水分合量變化를 보면 當初 水分含量이 12, 15 및 18%인 모든 處理區에서 初期에는 水分減少 現象이 일어나나 溫度 平衡이 이루어진 後에는 水分含量이 12%인 正租의 경우 漸次 吸濕現象으로 變化하였다. 5. 貯藏庫內 濕度의 變異係數는 5.44%로 外氣濕度의 7.09%보다 적었으며 初期 水分含量이 13, 14, 15, 16 및 17%인 正租의 1年 時戚後의 水分含量은 各各 14.49, 15.08, 15.34, 15. 47 및 15.83% 順으로 되어 平衡水分現象과 履歷效果가 共히 確認되었다. 6. 正租의 呼吸量은 水分含量이 15%以上이 되거나 貯藏溫度가 20℃以上이 되면 急激히 增加하였으며 水分合量이 15.8%인 正租를 30℃에서 貯藏하였을때의 炭酸가스 發生量은 增加하였으며 水分含量이 15.8%인 正租를 30℃에서 貯藏하였을때의 炭酸가스 發生量은 5.21ml/24hr/100g으로 水分含量 14.9%와 貯藏溫度 20℃에서의 0. 84ml/24hr/100g보다 6倍나 되었다. 그리고 玄米와 白米의 呼吸量은 正租에 比하여 各各 60 및 30%程度로 떨어졌으나 水分含量과 貯藏溫度에 衣한 영향은 正租에서와 같은 傾向이었다. 7. 正租의 發芽率은 收穫童年 11月까지 크게 變함없이 維持되었으나 玄米의 發芽率은 收穫翠年 9月부터 急激히 떨어지는 傾向이었다. 8. 米穀의 熱特性中 比熱은 0.425cal/g℃이었으며 熱擴散係數와 熱傳導率은 各各 0.063㎠/min 및 0.0155cal/min cm ℃이었다. 이것을 適用하여 農家簡易 silo式 타포린bag에 貯藏한 正租의 溫度變化를 計算한 理論値와 實測値는 一致하였다. 9. 米穀을 散物로 하여 密閉된 狀態로 貯藏하면 穀溫의 變化가 鈍化되어 盛夏期의 最高穀溫이 密積密間時藏區에서는 一般 貯藏區보다 3.1℃ 낮았고 完全空氣宙閉散物貯藏區의 穀溫은 10月에 最高가 되었으며 一般昨藏區보다 7.7℃ 낮았다. 10. 米穀의 水分含量은 外氣海度의 영향을 받아 變化하며 一般貯藏區와 통가리貯藏區에서는 收穫翠年 11月에 14.02와 14.11%로 減少가 컸으나 타포린bag貯藏區와 完全空氣密閉 散物貯藏區에서는 14.40 및 14.53% 였다. 11. 米穀의 成分中 還元糟과 脂肪酸은 通風式 貯藏인 一 般貯藏區와 통가리貯藏區에서 密閉式時藏區들에서보다 현저히 增加하였으며 水溶性蛋白質은 密閉式 貯藏方法인 타포린bag貯藏區, 密積密闊前藏區 및 完全密閉散物貯藏區에서 減少가 적었다. 12. 貯藏中 農酸가스의 蓄積濃度는 一般貯藏區와 통가리貯藏區에서 各各 0.54 및 0.62%였으나 密積密閉前密區는 3.13%, 타포린bag密歲區는 3.64%,그리고 完全密閑散物貯藏區는 3.88%였다. 13. 米穀의 貯藏中 重量減耗率은 一般貯藏區와 통가리 貯藏區에서 1.40 및 1.67%였으나 密積密閉貯藏區는 0.78%,타포린bag 貯藏區는 0.72%,그리고 完全空氣密閉散物貯藏區는 0.50%로 낮았다. During rice storage, moisture equilibrium, respiratory consumption and thermal properties were studied in relation to physicochemical changes of rice influenced by storing methods. The results obtained were as following: 1. Moisture contents of rice changed to be equilibrated with the water activity of ambient humidity. The rates of change were rapid during initial stage of equilibrium. The equilibrated moisture contents of Tongil line rices were 0.2-0.8% lower than that of Jinheung. 2. Hysteresis effects on rice equilibrated moisture was observed. At the same water activity, desorption equilibrium moisture was 1-2% higher than absorption equilibrium moisture of dried rough rice. 3. Wetting heat of rough rice containing 6, 8, 12, and 15% moisture was 1.98, 1.35, 0.81, and O.32cal/g respectively, showing the more wetting heat of dryer rough rice. 4. During cooling, the moisture content of rough rice decreased in all tested levels of initial grain moisture of 12, 15, and 18% showing moisture transport with heat transport, although rough rice containing initial 12% moisture increased its moisture content through absorption after cooled. 5. The variation of relative humidity in storing warehouse was smaller than that of weather. The variation coefficient was 5.44% for conventional warehouse, while it was 7.09% for outdoor humidity. The initial moisture contents of 13, 14, 15, 16, and 17% of stored rough rice changed to 14.49, 15.08, 15.34, 15. 47, add 15.83% respectively after one year storage in accordance with moisture equilibrium theory and hysteresis effects. 6. At high moisture content more than 15% or at warm storing temperature higher than 20℃, the rate of CO₂ gas generation was increased rapidly; CO₂ gas generation rate of rough rice recorded 5.21ml/24hr/100g at 30℃ and 15.8% moisture, while it was 6 times lower 0.84ml/24hr/l00g at 20℃ and 14.9% moisture. Respiration rates of brown rice and polished rice were 60 and 30% of that of rough rice respectively. But the influence of storing temperature and moisture content on their respiration were in the same way as on that of rough rice. 7. Germinability of stored rough rice was unchanged until November, the year after harvest, but germinability of brown rice decreased rapidly from September, the year after harvest. 8. Of the thermal properties of rough rice, specific heat was 0.425cal/g℃, heat diffusivity was O. 063cm²/min, and heat conductivity was 0.0155cal/min cm ℃. Measured temperature change of rough rice stored in farmer's simplified Tarpaulin bag silo was almost accorded with theoretical change calculated on the basis of the measured heat diffusivity. 9. Air-tight bulk storage stabilized the temperature of stored rice; the highest temperature of air-tight compact stacking storage was 3.1℃ lower than that of conventional storage in summer; and the highest temperature of air-tight bulk storage was observed in October and 7.7℃ lower than that of conventional storage. 10. Moisture content of conventionally stored rice was influenced by the ambient humidity to become lowered to 14.02 and 14.11% in the case of conventional storage and Tongari storage respectively, while it was remained 14.40% in the case of air-tight bulk or 14.53% in compact storage which were not influenced by outdoor humidity. 11. During storage, reducing sugar contents of non-air-tight conventionally stored rice, such as in conventional granary and Tongari, increased greater than rice stored in air-tight condition. Soluble protein tended to decrease, the tendency being less in case of air-tight conditions, such as Tarpaulin bag storage, air-tight bulk storage, and air-tight compact stacking, Fat acidity increased during storage, the increase being less in case of air-tight storage. 12. During storage, CO₂ gas was accumulated only up to 0.54 and 0.62% respectively for conventional and Tongari storage, but 3.13% for air-tight compact stacking, 3.64% for Tarpaulin bag, and 3.88% for air-tight bulk. 13. The weight losses during storage were amounted and Tongari storage, while the losses were small 0.78, 0.72, and 0.50% in case of air-tight compact stacking, Tarpaulin bag, and air-tight bulk storage respectively.

미곡의 저장방법에 따른 이화학적 변화와 열특성에 관한 연구

한판주 ( P . J . Han ) 원광대학교 생명자원과학연구소 1982 농대논문집 Vol.5 No.-

미곡의 상온저장중 상대습도에 따른 수분함량변화에 관한 연구

한판주(Pan Ju Harn) 원광대학교 생명자원과학연구소 1979 농대논문집 Vol.2 No.-

水稻新品種 「統一」의 貯藏性硏究

韓判柱(Pan-Ju Han),金泳相(Young-Sang Kim),閔龍圭(Yong-Kyu Min) 한국식품과학회 1976 한국식품과학회지 Vol.8 No.3

일반발표 - 토양화학 및 토양미생물 : 제주도 감귤원 토양의 지역별 화학적 성질의 차이

문덕영,한판주,문두경,현해남 한국토양비료학회 1993 한국토양비료학회 학술발표회 Vol.1993 No.50

제주도 감귤원 토양의 지역별 화학적 성질의 차이

문덕영,한판주,문두경,현해남 한국응용생명화학회 1993 한국응용생명화학회 학술발표회 Vol.1993 No.-

두유를 이용한 변형요구르트의 제조에 관한 연구(I)

이재성(Jae Sung Lee),한판주(Pan Ju Han),서기봉(Kee Bong Suh) 한국식품과학회 1972 한국식품과학회지 Vol.4 No.3

태양열집열송풍(太陽熱集熱送風) , 곡물순환식 건조기의 벼 건조효과

김영배,이병영,손종록,윤인화,한판주 한국농화학회 1989 Applied Biological Chemistry (Appl Biol Chem) Vol.32 No.2

A 2.5 ton scale of solar energy concentration blast-grain circulation dryer (SECD) was developed in order to shorten the dry ing time without damaged paddy. Comparative experiments were carried out on performance, drying efficiency, consistency in moisture content, milling recovery, grade of milled rice, and energy requirement and cost against all that of in-bin drying and storage (IBDS) method. The experiments were performed using mixture of several rice varieties of Tongil type(Japonica-Indica breeding type) under the autumn weather in korea. The circulating air temperature inside SECD was 4∼5℃ higher than that of IBDS. The moisture content of the paddy during the drying period in SECD was uniform while substantially varied in upper, middle or bottom layer in IBDS. By SECD, 24% initial moisture content of paddy was reduced to 15% after only 3 days of drying as compared to 14 days at IBDS. The percentage of cracked kernels in upper, middle and bottom layers in IBDS was 6, 6 and 12%, respectively, whereas 7% in all layers in SECD. Both types of dryers did not significantly affect the milling recovery of dried paddy and grade of milled rice. Energy requirement of SECD(28. 8Kw/2.5ton) for paddy drying was much less than that of IBDS(108Kw/2.5ton).