Nam K C, Ko K Y, Min B R, Ismail H, Lee E J, Cordray J, Ahn D U
Animal Science Department, Iowa State University, 1221 Kildee Hall, Ames, IA 50011-3150, United States.
Meat Sci. 2006 Oct;74(2):380-7. doi: 10.1016/j.meatsci.2006.04.004. Epub 2006 Apr 29.
Irradiated restructured pork loins treated with rosemary-tocopherol/double-packaging had lower TBARS values than vacuum-packaged control after 10 days of refrigerated storage. The rosemary-tocopherol combination, however, had no effect on the production of sulfur volatiles responsible for the irradiation off-odor, and color changes in irradiated pork. V7/A3 double-packaging was effective in reducing the sulfur volatiles significantly. Rosemary-tocopherol combination was highly effective in reducing the volatile hexanal in irradiated restructure pork. Irradiation was effective in reducing Listeria monocytogenes and Salmonella typhimurium inoculated on the surface of restructured pork loin in dose-dependent manner. The irradiation D(10) values for L. monocytogenes and S. typhimurium were 0.58 and 0.55kGy, respectively. During the 20 days of refrigerated storage, L. monocytogenes in both nonirradiated and irradiated samples grew gradually, but the number of S. typhimurium decreased. The added rosemary-tocopherol, however, showed little bacteriocidal effects to L. monocytogenes and S. typhimurium.
在冷藏储存10天后，用迷迭香-生育酚/双层包装处理的辐照重组猪里脊肉的硫代巴比妥酸反应物（TBARS）值低于真空包装的对照样品。然而，迷迭香-生育酚组合对导致辐照异味的硫挥发物的产生以及辐照猪肉的颜色变化没有影响。V7/A3双层包装在显著降低硫挥发物方面是有效的。迷迭香-生育酚组合在降低辐照重组猪肉中的挥发性己醛方面非常有效。辐照能以剂量依赖的方式有效减少接种在重组猪里脊肉表面的单核细胞增生李斯特菌和鼠伤寒沙门氏菌。单核细胞增生李斯特菌和鼠伤寒沙门氏菌的辐照D(10)值分别为0.58和0.55千戈瑞。在冷藏储存的20天里，未辐照和辐照样品中的单核细胞增生李斯特菌都逐渐生长，但鼠伤寒沙门氏菌的数量减少。然而，添加的迷迭香-生育酚对单核细胞增生李斯特菌和鼠伤寒沙门氏菌几乎没有杀菌作用。
