摘要
在15℃70%RH,20℃70%RH,25℃70%RH,30℃75%RH等四种储藏条件下,分别对水分为13.5%,14.0%,14.5%,15.0%左右的普通籼稻谷进行为期一年的实验室模拟试验,观察样品外观、气味等的变化,并对25℃,30℃样品每月取样一次,15℃,20℃的样品每两个月取样一次,对其水分、脂肪酸值、发芽率等品质指标进行测定,实验结果表明:30℃下,14.6%左右的偏高水分籼稻储存时间不宜超过2个月,14.0%以内籼稻谷储存时间可达3个月;25℃下,15.0%水分籼稻可保存8个月,14.5%水分籼稻可保存12个月;20℃下,15.0%水分籼稻可保存10个月,14.5%以内籼稻可保存一年;在15℃下,偏高水分籼稻可储存一年以上。
The imitation storage tests of 4 group of long - grain nonglutinous rice with 13.5 %, 14.0 %, 14.5 %, 15. 0% moisture content have been clone for one year in 4 different conditions including 15℃ 70% RH, 20℃ 70% RH, 25℃ 70 % RH, 30℃ 75 % RH. In this test, the change of appearance and odour of the samples were observed, and for rice samples at 25℃ and 30℃ were sampled one time every month, while one time every two months for rice samples at 15℃ and 20℃ to analyze their quality index such as moisture content, fatty acid value and germination rate etc.. The results showed that the long- grain nonglutinous rice with about 14.6% moisture should better be stored within 2months at 30℃, while the rice with less than 14.0% moisture can be stored for 3 months. At 25℃, sample with 15.0 % moisture can be stored for 8 months, while sample with 14.5 % moisture can be stored for 12 months. At 20℃, sample with 15.0% moisture can be stored for 10 months, while sample with 14.5 % moisture can be stored for 1 year. At 15℃, long - grain nonglutinous rice with high moisture can be stored for over 1 year.
出处
《粮食储藏》
2006年第4期33-36,共4页
Grain Storage
基金
"十五"国家重大科技专项"粮食丰产科技工程"(产后领域)课题十九
关键词
籼稻谷
含水量
储藏
品质
温度
long - grain nonglutinous rice, moisture content, storage, quality, temperature
