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Occurrence and behavior of Salmonella spp. in Avocado, Custard Apple and Breadfruit in different conditions of temperature and maturity stages

Grant number: 13/19520-4
Support Opportunities:Scholarships in Brazil - Post-Doctoral
Effective date (Start): January 01, 2014
Effective date (End): December 31, 2015
Field of knowledge:Biological Sciences - Microbiology - Applied Microbiology
Principal Investigator:Anderson de Souza Sant'Ana
Grantee:Ana Carolina Bortolossi Rezende de Carvalho
Host Institution: Faculdade de Engenharia de Alimentos (FEA). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil


Despite the benefits to human health associated with the consumption of fruit, in recent years have seen an increase in occurrence of cases and outbreaks of foodborne illness associated with these products. Data from epidemiological investigations indicate that Salmonella as the main etiological agent associated with fruit-borne outbreaks. Avocado, Custard Apple and Breadfruit are exotic and/or tropical fruits produced in Brazil, whose consumption and exports have increased in recent years due to their exotic flavors, variety of nutrients, antioxidants compounds and consumers search for healthier foods. Despite this, there are no data on the microbial ecology of these fruits. This fact is of great concern, since it is known that the low acid fruits constitute optimal substrates for the multiplication of microorganisms, especially pathogens. The occurrence of a salmonellosis outbreak in the U.S.A, due to consumption of mango imported from Brazil, reinforces the need for knowledge about the incidence, behavior and factors affecting contamination and survival of pathogens in these fruits. Thus, this study aims to: 1) assess the incidence of Salmonella spp. in avocado, custard apple and breadfruit marketed/produced in Brazil; 2) characterize geno- and phenotypically the Salmonella strains isolated from these fruits; 3) determine the growth kinetic parameters of Salmonella spp. inoculated in these fruits at 10, 15, 20 and 30°C through predictive modeling; 4) evaluate the influence of ripening state on the behavior of Salmonella spp. inoculated in the fruits through challenge tests; 5) simulate the behavior of Salmonella spp. during ripening and/or commercialization of fruits. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
PRADO-SILVA, LEONARDO; CADAVEZ, VASCO; GONZALES-BARRON, URSULA; REZENDE, ANA CAROLINA B.; SANT'ANA, ANDERSON S.. Meta-analysis of the Effects of Sanitizing Treatments on Salmonella, Escherichia coli O157:H7, and Listeria monocytogenes Inactivation in Fresh Produce. Applied and Environmental Microbiology, v. 81, n. 23, p. 8008-8021, . (15/20223-0, 13/19520-4)
REZENDE, ANA CAROLINA B.; CRUCELLO, JULIANA; MOREIRA, RAFAEL C.; SILVA, BEATRIZ S.; SANT'ANA, ANDERSON S.. Incidence and growth of Salmonella enterica on the peel and pulp of avocado (Persea americana) and custard apple (Annona squamosa). International Journal of Food Microbiology, v. 235, p. 10-16, . (13/19520-4)
SCOLFORO, CARMELITA Z.; BAIRROS, JACQUELINE V.; REZENDE, ANA CAROLINA B.; SILVA, BEATRIZ S.; ALVES, ROBERTA B. T.; COSTA, DAIENE S.; ANDRADE, NELIO J.; SANT'ANA, ANDERSON S.; PENA, WILMER E. L.. Modeling the fate of Listeria monocytogenes and Salmonella enterica in the pulp and on the outer rind of Canary melons (Cucumis melo (Indorus Group)). LWT-FOOD SCIENCE AND TECHNOLOGY, v. 77, p. 290-297, . (13/19520-4)

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