Assessment of contamination of Salmonella spp. in imported black pepper and sesame seed and salmonella inactivation by gamma irradiation | Zendy

Maria Cristina D’Oca | Zendy; Anna Maria Di Noto | Zendy; A. Bartolotta | Zendy; Aldo Parlato | Zendy; Luisa Nicastro | Zendy; Sonia Sciortino | Zendy; Cinzia Cardamone | Zendy

Open Access

Assessment of contamination of Salmonella spp. in imported black pepper and sesame seed and salmonella inactivation by gamma irradiation

Author(s) -

Maria Cristina D’Oca,

Anna Maria Di Noto,

A. Bartolotta,

Aldo Parlato,

Luisa Nicastro,

Sonia Sciortino,

Cinzia Cardamone

Publication year - 2021

Publication title -

italian journal of food safety

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.359

H-Index - 13

ISSN - 2239-7132

DOI - 10.4081/ijfs.2021.8914

Subject(s) - pepper , salmonella , contamination , gamma irradiation , biology , food science , serotype , horticulture , irradiation , microbiology and biotechnology , bacteria , physics , ecology , genetics , nuclear physics

This study shows the frequency of seeds samples contaminated by Salmonella spp. collected randomly from local markets; on 30 black pepper sample no contaminated sample was found while Salmonella spp. was detected in 3 of 36 (8.3%) analyzed sesame samples; three different serotypes were identified: S. Montevideo, S. Stanleyville e S. Tilene. The efficacy of gamma irradiation to inactivate Salmonella Montevideo in black pepper and sesame irradiated between 1 and 5 kGy was evaluated. 3 kGy is sufficient to reduce of 3-4 log CFU/g; whereas 5 kGy have been need to reduce 5.5-6 log CFU/g for samples of black pepper and sesame. No statistically significant differences were found between black pepper and sesame.

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