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oai:recercat.cat:20.500.12327/2002025-10-22T11:11:12Zcom_2072_4428com_2072_4427col_2072_487898

00925njm 22002777a 4500 dc Blázquez, E. author Rodríguez, C. author Ródenas, J. author Saborido, N. author Solà‐Ginés, M. author Pérez de Rozas, A. author Campbell, J. M. author Segalés, J. author Pujols, J. author Polo, J. author 2018-06-11 The objective of this study was to determine the effectiveness of the spray-drying process on the inactivation of Salmonella choleraesuis and Salmonella typhimurium spiked in liquid porcine plasma and to test the additive effect of immediate postdrying storage. Commercial spray-dried porcine plasma was sterilized by irradiation and then reconstituted (1:9) with sterile water. Aliquots of reconstituted plasma were inoculated with either S. choleraesuis or S. typhimurium, subjected to spray-drying at an inlet temperature of 200°C and an outlet temperature of either 71 or 80°C, and each spray-drying temperature combinations were subjected to either 0, 30 or 60 s of residence time (RT) as a simulation of residence time typical of commercial dryers. Spray-dried samples were stored at either 4·0 ± 3·0°C or 23·0 ± 0·3°C for 15 days. Bacterial counts of each Salmonella spp., were completed for all samples. For both Salmonella spp., spray-drying at both outlet temperatures reduced bacterial counts about 3 logs at RT 0 s, while there was about a 5·5 log reduction at RT 60 s. Storage of all dried samples at either 4·0 ± 3·0°C or 23·0 ± 0·3°C for 15 days eliminate all detectable bacterial counts of both Salmonella spp. Blázquez, E., C. Rodríguez, J. Ródenas, N. Saborido, M. Solà-Ginés, A. Pérez de Rozas, J. M. Campbell, J. Segalés, J. Pujols, and J. Polo. 2018. "Combined Effects Of Spray-Drying Conditions And Postdrying Storage Time And Temperature On Salmonella Choleraesuis And Salmonella Typhimurium Survival When Inoculated In Liquid Porcine Plasma". Letters In Applied Microbiology 67 (2): 205-211. Wiley. doi:10.1111/lam.13017. 0266-8254 http://hdl.handle.net/20.500.12327/200 https://doi.org/10.1111/lam.13017 Combined effects of spray‐drying conditions and postdrying storage time and temperature on Salmonella choleraesuis and Salmonella typhimurium survival when inoculated in liquid porcine plasma