@article{oai:tsukuba.repo.nii.ac.jp:00027457,
 author = {中嶋, 光敏 and Chen, Susu and Tsutsumi, Tomoaki and Takatsuki, Satoshi and Matsuda, Rieko and Kameya, Hiromi and Nakajima, Mitsutoshi and Furuta, Masakazu and Todoriki, Setsuko},
 issue = {1},
 journal = {Food chemistry},
 month = {Sep},
 note = {The natural existence of the irradiation markers, namely, 2-decylcyclobutanone (2-DCB) and 2-dodecylcyclobutanone (2-dDCB), in nutmeg (Myristica fragrans) has recently been reported. In this study, 2-DCB and 2-dDCB were extracted from nutmeg of five different origins using supercritical fluid extraction (SFE). A 50-kGy irradiated sample was used to optimise the parameters of SFE and solid-phase extraction. The irradiated samples were analysed by gas chromatography–mass spectrometry, whereas the non-irradiated samples were analysed with high-resolution gas chromatography–mass spectrometry. Both 2-DCB and 2-dDCB were detected and identified in the irradiated samples at 5 kGy or greater. However, neither was present in the non-irradiated samples. Moreover, although the concentrations of 2-DCB and 2-dDCB were significantly reduced, a positive identification was obtained in irradiated nutmeg even after 30 weeks of storage.},
 pages = {359--365},
 title = {Identification of 2-alkylcyclobutanones in nutmeg (Myristica fragrans)},
 volume = {134},
 year = {2012}
}