Artículo
Microbiological quality and determination of pesticide residues in the lettuce produced in Bahía Blanca's horticultural belt, Argentina
Marzocca, Maria Alejandra; Costantino, Andrea Rosana
; Gentili, Alejandro Raúl; Oriani, Alejandra Soledad; Pereyra, Marcelo Tomas
; Lusto, Jorge; Baldini, Monica Diana
Fecha de publicación:
24/03/2021
Editorial:
Taylor & Francis
Revista:
Journal of Environmental Science and Health. Part B: Pesticides, Food Contaminants, and Agricultural Wastes
ISSN:
0360-1234
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The aims of this research were 1) to find out the possible microbiological contamination and residues of pesticides (chlorpyrifos and cypermethrin) in lettuce grown in Bahía Blanca’s horticultural belt, and bacteriological quality of waters used for irrigation and post-harvest washing, 2) to investigate and compare the internalization capacity of a strain of Escherichia coli isolated from irrigation water with another hospital uropathogenic strain. Some strains of bacteria can internalize into the plant tissue. This capability presents food safety threats as they cannot be removed with standard sanitation practices. To determine bacteriological quality of lettuce, E. coli, Salmonella spp and E. coli O157: H7/NM (n = 10) were investigated. Bacteriological quality of water was determined by quantification of fecal coliforms/100 mL (n = 20). Pesticides were determined by using an improved and validated QuEChERS method combined with GC-MSD. Irrigation water in 19/20 samples did not present health risk. Bacteriological quality of lettuce met demands in 9/10 samples. Pesticides were detected in half of the samples, values exceeding the FAO recommendations. An effort is strongly recommended to implement both, best phytosanitary practices and monitoring programmes. Uropathogenic strain was able to internalize into plant tissue, while the nonpathogenic one was not.
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Colecciones
Articulos(INQUISUR)
Articulos de INST.DE QUIMICA DEL SUR
Articulos de INST.DE QUIMICA DEL SUR
Citación
Marzocca, Maria Alejandra; Costantino, Andrea Rosana; Gentili, Alejandro Raúl; Oriani, Alejandra Soledad; Pereyra, Marcelo Tomas; et al.; Microbiological quality and determination of pesticide residues in the lettuce produced in Bahía Blanca's horticultural belt, Argentina; Taylor & Francis; Journal of Environmental Science and Health. Part B: Pesticides, Food Contaminants, and Agricultural Wastes; 56; 5; 24-3-2021; 1-8
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