辐照香料与食品的鉴定

本文采用ESR和化学发光等测量法鉴定辐照香料和辐照食物,研究了花椒粉、胡椒粉(黑、白)、大料、姜粉、芥末、咖哩粉、安息茴香、五香粉、香辣酥和复合调料等香料,以及全脂奶粉、纯藕粉、健儿粉、白面粉、甘草霜和食用明胶等食物经60Coγ射线辐照后,ESR及化学发光强度的变化,以及辐照剂量,贮藏时间和样品粒度对ESR及化学发光的影响。结果表明,两种方法均可有效地区分辐照和未辐照食物和香料,而ESR法较化学发光法更易应用,其鉴定的有效期在30天以上。此外,还对某些包装材料如玻璃、木材和纸等的ESR变化规律进行了初步研究。

IDENTIFICATION OF IRRADIATED FOODSTUFFS AND SPICES

The irradiated dried powder of milk, lotus root starch, rice, flour, licoric and 10 different spices(.curry, peppers, turmeric, fennel, pimiento, Chinese prickly ash, aniseed and mixed spices) were studied by means of ESR and chemilumescence.The result showed that both methods were useful and hopeful in identifying the irradiated foods and spices.The term of validity was more than one month.The differences of both methods were also discussed.