Incidence and growth of Listeria monocytogenes in persimmon (Diospyros kaki) fruit

Autor(es)

Uchima, C. A. ^[1] ; de Castro, M. F. P. M. ^[1] ; Gallo, C. R. ^[2] ; Rezende, A. C. B. ^[1] ; Benato, E. R. ^[1] ; Penteado, A. L. ^[3]

Afiliação do(s) autor(es)

^[1] ITAL, Grp Especial Engn & Pos Colheita, BR-13070178 Campinas, SP - Brazil

^[2] ESALQ, Dept Agroind Alimentos & Nutr, BR-13418900 Piracicaba, SP - Brazil

^[3] CTAA EMBRAPA, BR-29501 Guaratiba, RJ - Brazil

• Tipo de documento: Artigo Científico
• Fonte: International Journal of Food Microbiology; v. 126, n. 1-2, p. 235-239, AUG 15 2008.
• Citações Web of Science: 12

Resumo

The incidence of Listeria monocytogenes on persimmon (Diospyros kaki) surface of `Fuyu' and `Rama Forte' was evaluated during a 5-month-period (from March to July) of two seasons periods (years 2005 and 2006). The fruits were collected in wholesale and street markets and retail in Sao Paulo and Campinas City, Brazil. A total of 582 fruits were analyzed using the Bax (R) System which is based on the Polymerase Chain Reaction. The ability of this pathogen to grow on the peel and pulp of the two persimmon varieties was also verified at different incubation periods at the temperatures of 10, 20 and 30 degrees C. The growth parameters were obtained by modeling the experimental data using the Gompertz function. The incidence survey showed the absence of L. monocytogenes. The growth curves showed that L monocytogenes can grow on the peel as well as in the pulp of the two persimmon varieties studied incubated at 10, 20 and 30 degrees C and that low temperatures can reduce the generation rate but does not inhibit its growth. (C) 2008 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 03/06445-2 - Manuseio, embalagem e conservação de caqui com aplicação de APPCC (análise de perigos e pontos cítricos de controle) visando à segurança do alimento para o consumidor
• Beneficiário: Eliane Aparecida Benato Rodrigues da Silva
• Modalidade de apoio: Auxílio à Pesquisa - Pesquisa em Políticas Públicas