^(60)Coγ射线辐照处理对晚粳稻低温干燥特性的影响  

INFLUENCE OF γ-IRRADIATION ON LOW TEMPERATURE DRYING OF Japonica RICE

作　　者：于勇[1] 王俊[1] 王爱华[2] 罗剑毅[1] 傅俊杰[2] 

机构地区：[1]浙江大学生物系统工程与食品科学学院,浙江杭州310029 [2]浙江大学农业与生物技术学院,浙江杭州310029

出　　处：《核农学报》2005年第1期41-45,共5页Journal of Nuclear Agricultural Sciences

基　　金：国家自然科学基金 (3 0 4710 0 0 );中国高校博士点科研专项基金资助 (2 0 0 2 0 3 3 5 0 5 2 )

摘　　要：本研究对晚粳稻经60 Coγ射线辐照预处理后进行低温热风干燥 ,探索了辐照剂量、热风温度和初始含水率对干燥过程及稻谷表面温度的影响。结果表明 ,经辐照处理的稻谷失水速率加快 ,相同时间内水分下降程度提高 ,其表面温度上升较快 ;稻谷的失水速率、相同时间内的水分下降程度及表面温度等都随着辐照剂量而增加 ,增高。辐照对稻谷在不同失水速率和含水率时其表面温度的变化规律也进行了研究。Hot-air influence of different doses of irradiation, temperature of hot air, initial moisture content of rice (late-cropping season japonica rice)on the rates of dehydration and surface temperature were studied. It is concluded that three factors: irradiation dosage, hot-air temperature and initial moisture content of rice, affect the rate of dehydration and surface temperature of rice. Compared with non-irradiation sample, inradiated samples had faster dehydration rate and surface temperature increase during the drying.The rate of rice dehydration, and the surface temperature of the rice are increased with the increasing of irradiation dose. Effect of irradiation doses on changes of surface temperature, moisture content and dehydration rate were also measured.=

关 键 词：晚粳稻 稻谷 失水速率 辐照处理 水分 ^60Coγ射线 低温干燥 辐照剂量 热风干燥 含水率 

分 类 号：S511.22[农业科学—作物学] TS215[轻工技术与工程—粮食、油脂及植物蛋白工程]