title: Validation of a predictive model describing growth of Salmonella in enteral feeds.
abstract: The growth of Salmonella enterica subs. enterica sorovar Typhimurium at 25ºC was monitored in industrialized and hospital formulated enteral feeds and the results were used to validate the mathematical model of Salmonella growth presented by the Pathogen Modeling Program (PMP) 7.0 (USDA-USA). The generation time of Salmonella in enteral feeds ranged from 21 to 34.8 min and, the maximum growth rate (μmax) varied from 1.28 to 1.95 h(-1), resulting in a population increase from 5 to 6 log10 cycles within 14 to 24 h incubation. Growth was faster in the hospital formulated feed containing vegetables and eggs. The growth kinetic's parameters as lag phase; μmax and maximum population density (MPD) were similar to those predicted by the PMP 7.0, with exception of lag phase in enteral diet at pH 6.3. The results of this study validated the PMP 7.0 model for describe Salmonella growth in enteral feeds and demonstrates the appropriateness of use such model to determine the pathogen behavior in a wide range of storage conditions in this food.
authors.affiliation: Departamento de Nutrição, Universidade de Alfenas , Alfenas, MG , Brasil.
authors.forename: Roberta Ribeiro
authors.initials: RR
authors.lastname: Silva
authors.forename: Célia Alencar
authors.initials: CA
authors.lastname: Moraes
authors.forename: Josefina
authors.initials: J
authors.lastname: Bessan
authors.forename: Maria Cristina Dantas
authors.initials: MC
authors.lastname: Vanetti
keywords: Salmonella growth; enteral diets; predictive microbiology
references.citation: J Hosp Infect. 1986 Jan;7(1):68-73
references.pmid: 2870111
references.citation: Arch Latinoam Nutr. 1999 Dec;49(4):363-6
references.pmid: 10883302
references.citation: Ann Anesthesiol Fr. 1979;20(6-7):595-602
references.pmid: 44974
references.citation: Br Med J (Clin Res Ed). 1981 Jun 13;282(6280):1971
references.pmid: 6786691
references.citation: Risk Anal. 2003 Feb;23(1):199-213
references.pmid: 12635733
references.citation: Nurs Times. 1983 Feb 16-22;79(7):41-7
references.pmid: 6403927
references.citation: J Hosp Infect. 2004 Oct;58(2):122-7
references.pmid: 15474183
references.citation: Nutrition. 2000 Sep;16(9):719-22
references.pmid: 10978850
references.citation: J Hosp Infect. 1983 Mar;4(1):51-6
references.pmid: 6190886
references.citation: Int J Food Microbiol. 1988 Mar;6(2):155-78
references.pmid: 3275296
references.citation: J Food Prot. 1999 Feb;62(2):106-11
references.pmid: 10030626
references.citation: Food Microbiol. 2006 Sep;23(6):561-70
references.pmid: 16943052
references.citation: Nutrition. 2000 Mar;16(3):165-7
references.pmid: 10705069
references.citation: Hum Nutr Appl Nutr. 1982 Jun;36(3):213-7
references.pmid: 6811510
references.citation: Nutrition. 2000 Sep;16(9):729-33
references.pmid: 10978852
references.citation: J Med Microbiol. 1985 Aug;20(1):63-8
references.pmid: 3927003
references.citation: Acta Cir Bras. 2005;20 Suppl 1:47-50
references.pmid: 16186972
references.citation: Nutr Clin Pract. 1992 Feb;7(1):31-6
references.pmid: 1293501
references.citation: Clin Nutr. 1991 Apr;10(2):114-9
references.pmid: 16839905
references.citation: Infect Control Hosp Epidemiol. 1994 May;15(5):311-4
references.pmid: 8077642
references.citation: J Hosp Infect. 1988 May;11(4):364-72
references.pmid: 2899589
references.citation: JPEN J Parenter Enteral Nutr. 2000 Sep-Oct;24(5):296-303
references.pmid: 11011785