Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2013, Vol. 24 ›› Issue (S1): S010310


Study on the rapid detection of irradiated rice based on RVA

FU Junjie1,2,* ZHOU Xinyao1 FENG Duhua2 WANG Qing2 DENG Li2   

  1. 1Zhejiang institute of Nuclear-Agricultural Sciences, Hangzhou 310029, China 2The center of biotechnology of Wuxi and Zhejiang University, Wuxi 214105, China
  • Contact: FU Junjie
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FU Junjie, ZHOU Xinyao, FENG Duhua, WANG Qing, DENG Li. Study on the rapid detection of irradiated rice based on RVA.Nuclear Science and Techniques, 2013, 24(S1): S010310


In this paper, the changes of rice-starch’s viscosity at different dose irradiation treatment were studied, the rice can be easily distinguished whether it has been irradiated or not with the control of pH. The results showed that the starch’s viscosity was significantly declined with increasing irradiation absorb dose. With the control of pH 2.5, the irradiated starch’s viscosity was apparently higher than the un-irradiated ones, there are significant differences in terms of viscosity between the two parts. The rice absorbed dose can be estimated using the relationship among peak viscosity, hot pasting viscosity and absorbed dose.

Key words: Starch, Irradiation, RVA diagram, Detection