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題名 | A study of Storing Imported Corn in Steel and Concrete Bins=鋼皮及水泥圓筒倉用於儲存進口玉米之研究 |
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作者姓名(中文) | 蕭介宗; | 書刊名 | 農業工程學報 |
卷期 | 32:1 1986.03[民75.03] |
頁次 | 頁8-35 |
分類號 | 434.251 |
關鍵詞 | 玉米; 進口; 鋼皮圓筒倉; 儲存; |
語文 | 中文(Chinese) |
中文摘要 | 在臺灣高溫高濕度的氣候下,探討鋼皮和水泥圓筒倉用於儲藏進口玉米之可行性。本文內容包括儲藏玉米之濕度,發芽率,脂肪酸度,昆蟲數與衛生物在100頓鋼皮圓筒倉和600噸水泥圓筒倉在3.5個月內變化的情形。並且推演一可預測玉米生熱之數學模式並證明貯藏期內確有生熱之現象,為移除產生之熱量,在儲藏期間給予通風並追蹤通風之影響。 在平均氣溫介於12.5℃和25.5℃之間,平均相對濕度介於64%和88%之間,在53天之儲藏之後,在鋼皮倉內14.7%含水率之玉米溫度最高溫度38℃發生在第63天之儲藏。 經過116.7小時之間歇通風,在鋼皮圓筒倉之下、中、上層玉米含水率之減低率各為1.9%、1.7%和1.8%。而經過146小時之間歇通風,在水泥圓筒倉之下、中、上層之玉米含水率之減低率各為1.4%、0.8%和2.4%。 經過3.5個月之儲藏,在鋼皮或水泥圓筒倉中心之發芽率各降至0%或13%。 經過3.5個月之儲藏,玉米受到曲黴菌感染率在鋼皮或水泥圓筒倉各為47.5%增至98.3%,或從76.1%增至87.8%。 經過3.5個月之儲藏,玉米受到青黴菌感染率在鋼皮或水泥圓筒倉各為從67.5%減為22.8%,或從41.7%增至86.7%。 適量之應用好達勝殺蟲劑,在剛開始儲藏48天內可有效地控制昆蟲之繁殖。以50公絲苛性鉀/100公克乾玉米為允許脂肪酸度,在鋼皮或水泥圓筒倉之儲藏期限各為49天67天。 |
英文摘要 | Under the hot and humid climate in Taiwan, the feasibility of adapting steel and concrete tanks for storing imported corn was studied. This paper includes changes of temperature, moisture content, viability, fatty acid value, insect and microorganism count of corn stored in a 100-ton steel tank and in a 600-ton concrete silo during 3.50month storage. In addition, a mathematical model was also developed to predict corn heating and applied to prove the existing heating during the storage. To remove the generated heat, aeration was applied and its effect was detected by the following check-up. Under the average ambient air temperatures between 12.5℃ and 25.5℃ and average relative humidity between 64% and 88%, the maximum temperature of corn with 14.9% moisture content in the steel tank was 41℃ after 53-day storage. However, the maximum temperature of corn with 14.7% moisture content in the nearby concrete silo was 38℃ after 63-day storage. After the intermittent aeration for 116.7 hours, the reduction of corn moisture content was 1.9%, 1.7% and 1.8% respectively at the bottom, middle and top layers of steel tank. After the intermittent aeration for 146 hours, the reduction of corn moisture content was 1.4%, 0.8% and 2.4% respectively at the bottom, middle and top layers of concrete silo. After 3.5-month storage, the viability of corn near the center of steel or concert bin was dropped down to 0% or 13% respectively. The amount of corn infested by Aspergillus was increased from 4705% to 98.3% in steel tank or from 76.1% to 87.8% in concrete silo after 3.5-month storage. After 3.5-month storage, the amount of corn infested by Penicillium was from67.5% down to 22.8% in the steel tank or from 41.7% up to 86.7% in the concrete silo. By properly applying insecticide, Phostoxin, it may be very effective to control the development of insects during the first 48 days of storage. Basing on the allowable fatty acid value of 50 mg KOH/100g dry corn, the allowable storage time was 49 days in the steel tank or 67 days in the concrete silo. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。