Artículos de revistas
Assessing The Effect Of Sodium Dichloroisocyanurate Concentration On Transfer Of Salmonella Enterica Serotype Typhimurium In Wash Water For Production Of Minimally Processed Iceberg Lettuce (lactuca Sativa L.)
Registro en:
Letters In Applied Microbiology. Wiley-blackwell, v. 62, p. 444 - 451, 2016.
0266-8254
1472-765X
WOS:000379596500002
10.1111/lam.12577
Autor
Maffei
D. F.; Sant'Ana
A. S.; Monteiro
G.; Schaffner
D. W.; Franco
B. D. G. M.
Institución
Resumen
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) This study evaluated the impact of sodium dichloroisocyanurate (5, 10, 20, 30, 40, 50 and 250 mg l(-1)) in wash water on transfer of Salmonella Typhimurium from contaminated lettuce to wash water and then to other noncontaminated lettuces washed sequentially in the same water. Experiments were designed mimicking the conditions commonly seen in minimally processed vegetable (MPV) processing plants in Brazil. The scenarios were as follows: (1) Washing one inoculated lettuce portion in nonchlorinated water, followed by washing 10 noninoculated portions sequentially. (2) Washing one inoculated lettuce portion in chlorinated water followed by washing five noninoculated portions sequentially. (3) Washing five inoculated lettuce portions in chlorinated water sequentially, followed by washing five noninoculated portions sequentially. (4) Washing five noninoculated lettuce portions in chlorinated water sequentially, followed by washing five inoculated portions sequentially and then by washing five noninoculated portions sequentially in the same water. Salm. Typhimurium transfer from inoculated lettuce to wash water and further dissemination to noninoculated lettuces occurred when nonchlorinated water was used (scenario 1). When chlorinated water was used (scenarios 2, 3 and 4), no measurable Salm. Typhimurium transfer occurred if the sanitizer was >= 10 mg l(-1). Use of sanitizers in correct concentrations is important to minimize the risk of microbial transfer during MPV washing. 62 6 444 451 Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [2012/03471-1, 2013/07914-8, 2014/17017-6] Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) [400477/2012-2] CNPq [302763/2014-7] Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)