摘要
对大豆储藏中水分和温度的变化,与真菌生长关系进行了研究,建立了一种大豆真菌危害早期预测方法。将样品含水量分别调至11.4%、12.1%、13.0%、13.9%、14.3%和14.7%,经低温平衡后,于10、15、20、25、30、35℃温箱中储藏,每隔10 d取样1次,检测样品中真菌生长变化情况,试验周期为180 d。结果表明,11.4%水分大豆在6个试验温度下储藏均是安全的,12.1%水分样品在20℃以上储藏,检出有真菌生长,随着水分增加,真菌生长逐渐加快,大豆储藏水分与真菌生长速度具有良好的相关性。大豆在15℃以下储藏,低温对真菌生长有明显的抑制作用。超过20℃时这种影响会随着温度上升逐步变小。本试验对不同水分大豆储藏温度与真菌生长起始时间进行了幂函数拟合,得到了大豆储藏水分、温度,及真菌起始生长时间预测关系曲线,通过本曲线,可对高水分大豆短期储藏安全性进行早期预测。
A method of early content, temperature, and 11.4%, 12.1%, 13.0%, fungal predicting fungus in soybean storage was growth in stored soybean. The moisture established through detecting moisture contents of samples were adjusted to 13.9%, 14.3% and 14.7% respectively, after the cryogenic balance, and they were sealed and stored in incubators at 10, 15, 20, 25, 30, 35 ~C respectively. The samples were taken every 10 d to de- termine the growth and changes of fungus, and the period of experiment was 180 days. The results showed that fungal growth was not detected in the sample at 11.4% moisture stored in six different temperatures. And it was detected in the sample at 12.1% moisture stored in temperatures above 20 ℃, with the increase of moisture, accelerated. The moisture of soybean storage and fungal growth speed had a good stored in temperatures below 15 ℃, low temperature had obvious inhibition for fungal growth was correlation. When soybean was fungal growth. When the temperature exceeded 20 ℃, its influence became smaller. After fitting power function, prediction curves of moisture contents, temperatures and fungal growth starting time were obtained. These curves can be used for early forecasting short - term safety storage period of high moisture soybeans.
出处
《中国粮油学报》
EI
CAS
CSCD
北大核心
2015年第7期77-80,共4页
Journal of the Chinese Cereals and Oils Association
基金
粮食公益性行业科研专项(201313001)
关键词
大豆
储藏
真菌危害
早期预测
soybean, storage, damage of fungus, early prediction
