Department of Food Science and Technology, Kyungpook National University, Daegu, Korea.
Poult Sci. 2011 Nov;90(11):2578-83. doi: 10.3382/ps.2010-01237.
The concentrations of hydrocarbons, 2-alkylcyclobutanones, and sulfur volatiles in irradiated (0 and 5 kGy) chicken meat samples (raw, precooked, and irradiated-cooked) were analyzed after 0 and 6 mo of frozen storage (-40°C) under oxygen-permeable packaging conditions. Two hydrocarbons [8-heptadecene (C(17:1)) and 6,9-heptadecadiene (C(17:2))], two 2-alkylcyclobutanones (2-dodecylcyclobutanone and 2-tetradecylcyclobutanone), and dimethyl disulfide were determined as radiation-induced detection markers in the irradiated raw and cooked chicken meats. Although irradiated-cooked samples produced fewer hydrocarbons and 2-alkylcyclobutanones than precooked irradiated samples, the number of individual hydrocarbons or 2-alkylcyclobutanones was still sufficient to detect radiation treatment even after 6 mo of storage at -40°C. Among sulfur volatiles, only dimethyl disulfide was found in meat after 6 mo of storage, indicating it has potential to be used an irradiation detection marker for frozen-stored meats under oxygen-permeable packaging conditions.
辐照（0 和 5 kGy）鸡肉样品（生、预煮和辐照煮）在冷冻储存（-40°C）0 和 6 个月后，分析其碳氢化合物、2-烷基环丁酮和硫挥发物的浓度，条件为在透气包装下。两种碳氢化合物[8-十七烯（C（17:1））和 6,9-十七二烯（C（17:2））]、两种 2-烷基环丁酮（2-十二烷基环丁酮和 2-十四烷基环丁酮）和二甲基二硫化物被确定为辐照生肉和熟肉中的诱导检测标记物。尽管辐照煮制的样品产生的碳氢化合物和 2-烷基环丁酮比预煮辐照的样品少，但即使在-40°C 下储存 6 个月后，仍然有足够数量的个别碳氢化合物或 2-烷基环丁酮可以检测到辐照处理。在硫挥发物中，只有二甲基二硫化物在储存 6 个月后在肉中被发现，表明它有可能成为透气包装条件下冷冻储存肉类的辐照检测标记物。
