2-Dodecylcyclobutanone as an irradiation dose indicator to identify and estimate original dose in irradiated ground beef

文献类型： 外文期刊

第一作者： Zhao, Yueliang

作者： Zhao, Yueliang;Wang, Feng;Li, Weiming;Li, An;Ha, Yiming;Zhao, Yueliang;Wang, Feng;Li, Weiming;Li, An;Ha, Yiming

作者机构：

关键词： 2-Dodecylcyclobutanone;Gamma irradiation;Storage time;Dose estimate

期刊名称：EUROPEAN FOOD RESEARCH AND TECHNOLOGY （ 影响因子：2.998； 五年影响因子：3.005 ）

ISSN： 1438-2377

年卷期： 2012 年 235 卷 5 期

页码：

收录情况： SCI

摘要： 2-Dodecylcyclobutanone (2-DCB), as a chemical marker of irradiated lipid-containing foods, was used to detect whether ground beef patties were irradiated and to estimate the original absorbed dose. The ground beef patties (70/30) were irradiated at five targeted absorbed doses of 0.5, 1.0, 3.0, 5.0, and 7.0 kGy and stored for 0, 7, 14, 21, and 28 days, respectively at 4 A degrees C. A rapid analytical method based on direct solvent extraction (DSE)/gas chromatography-mass spectrometry (GC-MS) was developed to analyze 2-DCB in gamma-ray irradiated ground beef patties. The samples were extracted with acetonitrile via DSE using a tissue-mashing instrument, and then purified with a 1-g silica cartridge and analyzed via GC-MS. The results indicate a linear relationship between irradiation dose and the amount of 2-DCB produced in the irradiated samples (y = 0.0608x-0.0004, RA(2)A = 0.9899). In addition, a linear relationship was observed between the loss (%) of 2-DCB and storage time (L = 1.958d-1.6596, RA(2)A = 0.9597). Thus, a method for estimating the initial dose of irradiated food was developed based on these two line equations; this method explored the establishment of a determination model of the original irradiation dose of lipid-containing foods. The method was used to successfully estimate 2-7 kGy irradiated beef samples within 28 days with minimal deviation within +/- 15 %.

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