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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Effect of Gamma Radiation on the Reduction of Salmonella strains, Listeria monocytogenes, and Shiga Toxin-Producing Escherichia coli and Sensory Evaluation of Minimally Processed Spinach (Tetragonia expansa)

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Autor(es):
Rezende, Ana Carolina B. [1] ; Igarashi, Maria Crystina [1] ; Destro, Maria Teresa [1] ; Franco, Bernadette D. G. M. [1] ; Landgraf, Mariza [1]
Número total de Autores: 5
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Food & Expt Nutr Dept, FCF, BR-05508900 Sao Paulo - Brazil
Número total de Afiliações: 1
Tipo de documento: Artigo Científico
Fonte: JOURNAL OF FOOD PROTECTION; v. 77, n. 10, p. 1768-1772, OCT 2014.
Citações Web of Science: 6
Resumo

This study evaluated the effects of irradiation on the reduction of Shiga toxin producing Escherichia coli (STEC), Salmonella strains, and Listeria monocyto genes, as well as on the sensory characteristics of minimally processed spinach. Spinach samples were inoculated with a cocktail of three strains each of STEC, Salmonella strains, and L. monocytogenes, separately, and were exposed to gamma radiation doses of 0, 0.2, 0.4, 0.6, 0.8, and 1.0 kGy. Samples that were exposed to 0.0, 1.0, and 1.5 kGy and kept under refrigeration (4 degrees C) for 12 days were submitted to sensory analysis. D-10-values ranged from 0.19 to 0.20 kGy for Salmonella and from 0.20 to 0.21 for L. monocytogenes; for STEC, the value was 0.17 kGy. Spinach showed good acceptability, even after exposure to 1.5 kGy. Because gamma radiation reduced the selected pathogens without causing significant changes in the quality of spinach leaves, it may be a useful method to improve safety in the fresh produce industry. (AU)

Processo FAPESP: 10/06969-5 - Uso da radiação ionizante para a melhoria da inocuidade de espinafre (Tetragonia expansa) minimamente processado
Beneficiário:Ana Carolina Bortolossi Rezende de Carvalho
Linha de fomento: Bolsas no Brasil - Doutorado