2006
DOI: 10.1248/jhs.52.375
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Detection of 2-Alkylcyclobutanones in Irradiated Meat, Poultry and Egg after Cooking

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Cited by 19 publications
(14 citation statements)
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“…However, despite the considerable drop in the levels of both markers with time, it was still possible to detect both 2-dodecylcyclobutanone (2-dDCB) and 2-tDCB and thereby confirm that the stored samples had been irradiated. Earlier work by Obana et al (2006) also demonstrated that they appear to be stable in the foodstuffs treated up to a temperature of 100°C but are destroyed above 200°C.…”
Section: -Alkylcyclobutanonesmentioning
confidence: 91%
See 1 more Smart Citation
“…However, despite the considerable drop in the levels of both markers with time, it was still possible to detect both 2-dodecylcyclobutanone (2-dDCB) and 2-tDCB and thereby confirm that the stored samples had been irradiated. Earlier work by Obana et al (2006) also demonstrated that they appear to be stable in the foodstuffs treated up to a temperature of 100°C but are destroyed above 200°C.…”
Section: -Alkylcyclobutanonesmentioning
confidence: 91%
“…A significant body of evidence exists to demonstrate the usefulness of 2-dDCB and 2-tDCB as markers for the detection of a range of irradiated foodstuffs (Blanch et al, 2009;Lee et al, 2008;Obana et al, 2006Obana et al, , 2007Sin et al, 2006;Stewart et al, 2000;Zanardi et al, 2007). Recent studies by Tewfik and Tewfik (Tewfik and Tewfik, 2008a and b) have investigated if these compounds could be used to identify irradiate lipid-containing foods towards the end of their shelf-life.…”
Section: -Alkylcyclobutanonesmentioning
confidence: 99%
“…Patties (40 g each) with a diameter of 95 mm and thickness of 6 mm were prepared from the ground beef as described previously. 14) Irradiation --Samples were irradiated with γ-rays from a 60 Co source (15 kGy/h) in the irradiation pool at the Frontier Science Innovation Center, Osaka Prefecture University, as described previously. 11) During irradiation with 5.3 kGy, the sam-ples were subjected to three temperature conditions: room temperature of about 20 • C; ice-cooled to about 0 • C; and dry ice-cooled, to −78 • C. The samples were placed in a container packed with crushed ice or powdered dry ice to cool.…”
Section: Methodsmentioning
confidence: 99%
“…11,14) Fatty Acids --Fatty acids in the weighed fat were determined using an established method. 15) Methylated fatty acids were determined with GC/MS monitored at m/z 87.…”
Section: Methodsmentioning
confidence: 99%
“…To reduce the extraction time and improve selective extraction for 2-alkylcyclobutanones, supercritical fluid extraction (Tewfik et al 1999;Horvatovich et al 2000Horvatovich et al , 2002bGadgil et al 2002), accelerated solvent extraction (Obana et al 2005(Obana et al , 2006, and direct solvent extraction (Tewfik 2008) have been employed instead of Soxhlet extraction and have succeeded in a greatly reduced extraction time to about 30-90 min.…”
Section: Limitations Of the Gas Chromatographic Analysis Of Fat-contamentioning
confidence: 99%