کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6488555 43039 2015 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Developing application and detection methods for Listeria monocytogenes and fish extract on open surfaces in order to optimize cleaning protocols
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
Developing application and detection methods for Listeria monocytogenes and fish extract on open surfaces in order to optimize cleaning protocols
چکیده انگلیسی
Surfaces in the food industry are often fouled with bacteria and organic materials. A range of fouling and testing methods using two Listeria monocytogenes strains (Scott A and N53-1) and organic material (0.4 g/ml fish extract) were designed to determine the efficacy of two different cleaning methods (spray and wipe) in 1% sodium hypochlorite. The optimum method for applying the cells and organic material to substrata occurred when the cells and organic material were mixed together, dried onto the surface and stained. As the number of cleaning and re-foulings increased, cells were removed from the surfaces but the organic material remained. The pattern of organic material retention was different on the surfaces with the different cleaning protocols, but neither method was better at removing the retained organic material. More cells were removed from the surfaces by the spray than the spray with wipe clean. There was no difference in cell number retention for either of the L. monocytogenes strains. These findings are valid for a 'dirty material' as classified in BS EN1276. To determine cleaning method efficacy, the application of cells and organic material to a surface is important, as is the detection methods used.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food and Bioproducts Processing - Volume 93, January 2015, Pages 224-233
نویسندگان
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