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Efficacy of sanitizing procedures applied in Tilapia-processing facilities: evaluation of environmental-friendly alternatives

Grant number: 14/20590-0
Support Opportunities:Scholarships in Brazil - Post-Doctoral
Effective date (Start): March 01, 2015
Effective date (End): February 28, 2018
Field of knowledge:Agronomical Sciences - Food Science and Technology
Principal Investigator:Marília Oetterer
Grantee:Daniel Vázquez Sánchez
Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil


An important increase in the production of fishery products was observed in Brazil in the last decade, particularly in cultured fishes such as Tilapia. However, this intensification in fish production has not been always followed by proper measures of food safety, which can increase the risk of food intoxications and, subsequently, generate considerable economic costs and a wide impact in public opinion. Therefore, the main objective of the present project is optimize sanitizing procedures applied in the Tilapia industry to reduce the risk of bacterial contamination as well as the environmental impact of biocides used. With this aim, the incidence of major food-borne bacterial pathogens (Listeria monocytogenes, Salmonella spp., Staphylococcus aureus and thermotolerant Escherichia coli) will be firstly assessed in two Tilapia-processing facilities of the State of São Paulo, one of the major production areas in Brazil. Afterwards, the prevalence of these pathogens will be determined in terms of biofilm formation and resistance to sodium hypochlorite (the biocide most commonly applied in the food industry). Finally, the efficacy of environmental-friendly alternatives will be evaluated to enhance the control of bacterial biofilms formed on fishery-processing plants and reduce the current environmental impact. The present work represents an extension of the cooperation between Brazilian research groups of USP and Embrapa with the IIM-CSIC in Spain. This cooperation will consist in the implementation of innovative and environmental-friendly sanitizing procedures in the fishery industry, data acquisition, publication of international articles, training of highly qualified human resources and teaching these innovations during graduate classes at ESALQ-USP. (AU)

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Scientific publications (6)
(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)
VAZQUEZ-SANCHEZ, DANIEL; GALVAO, JULIANA ANTUNES; AMBROSIO, CARMEN M. S.; GLORIA, EDUARDO MICOTTI; OETTERER, MARILIA. Single and binary applications of essential oils effectively control Listeria monocytogenes biofilms. INDUSTRIAL CROPS AND PRODUCTS, v. 121, p. 452-460, . (14/20590-0)
RODRIGUEZ-LOPEZ, PEDRO; JOSE RODRIGUEZ-HERRERA, JUAN; VAZQUEZ-SANCHEZ, DANIEL; LOPEZ CABO, MARTA. Current Knowledge on Listeria monocytogenes Biofilms in Food-Related Environments: Incidence, Resistance to Biocides, Ecology and Biocontrol. FOODS, v. 7, n. 6, . (14/20590-0)
VAZQUEZ-SANCHEZ, DANIEL; GALVAO, JULIANA ANTUNES; MAZINE, MARINA RODRIGUES; GLORIA, EDUARDO MICOTTI; OETTERER, MARILIA. Control of Staphylococcus aureus biofilms by the application of single and combined treatments based in plant essential oils. International Journal of Food Microbiology, v. 286, p. 128-138, . (14/20590-0)
VAZQUEZ-SANCHEZ, DANIEL; GALVAO, JULIANA ANTUNES; MAZINE, MARINA RODRIGUES; DA GLORIA, EDUARDO MICOTTI; FERREIRA DE SOUZA VIEIRA, THAIS MARIA. Anti-biofilm efficacy of single and binary treatments based on plant essential oils against Escherichia coli persistent in food-processing facilities. FOOD SCIENCE AND TECHNOLOGY INTERNATIONAL, v. 25, n. 5, p. 385-393, . (14/20590-0)
VAZQUEZ-SANCHEZ, DANIEL; GALVAO, JULIANA ANTUNES; OETTERER, MARILIA. Contamination sources, serogroups, biofilm-forming ability and biocide resistance of Listeria monocytogenes persistent in tilapia-processing facilities. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY-MYSORE, v. 54, n. 12, p. 3867-3879, . (14/20590-0)

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