The impact of dry ageing vacuum-packed pork on the... - BV FAPESP
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The impact of dry ageing vacuum-packed pork on the viability of Toxoplasma gondii tissue cysts

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Autor(es):
Alves, Bruna Farias [1] ; Gennari, Solange Maria [1] ; Oliveira, Solange [1] ; Soares, Herbert Sousa [1] ; Conte-Junior, Carlos Adam [2] ; Dubey, Jitender Prakash [3] ; Amaku, Marcos [4, 1] ; Pena, Hilda Fatima Jesus [1]
Número total de Autores: 8
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Sch Vet Med, Dept Prevent Vet Med & Anim Hlth, BR-05508270 Sao Paulo - Brazil
[2] Univ Fed Fluminense, Dept Food Technol, BR-24230340 Rio De Janeiro - Brazil
[3] ARS, Anim Parasit Dis Lab, Beltsville Agr Res Ctr, USDA, Beltsville, MD 20705 - USA
[4] Univ Sao Paulo, Sch Med, BR-01246903 Sao Paulo - Brazil
Número total de Afiliações: 4
Tipo de documento: Artigo Científico
Fonte: FOOD MICROBIOLOGY; v. 86, APR 2020.
Citações Web of Science: 0
Resumo

The present study evaluated the viability of Toxoplasma gondii tissue cysts in dry-aged pork loins (m. longissimus) after 14, 21 and 28 days under controlled temperature (0 degrees C +/- 1 degrees C). The pigs (n = 9) were orally inoculated with 3,000 T. gondii oocysts. The right loin of each pig was aged for a predetermined period, and the left loin was kept unprocessed as a control. Two experiments were performed. In Experiment 1, the loins of three pigs were aged for 14 days and then bioassayed in both cats and mice. In Experiment 2, the loins of six pigs were bioassayed only in mice, and the ageing periods were 14, 21, and 28 days. Toxoplasma gondii tissue cysts remained viable in loins aged up to 14 days, as confirmed by bioassays in cats and mice. Viable T. gondii was not recovered by bioassays in mice from loins that were aged for 21 or 28 days. These results demonstrate that T. gondii remained viable in vacuum-packed dry-aged pork loins for 14 days at controlled temperature but not for 21 days or longer. (AU)

Processo FAPESP: 15/20649-7 - Viabilidade de cistos de Toxoplasma gondii em carnes suínas processadas por maturação provenientes de animais experimentalmente infectados
Beneficiário:Bruna Farias Alves
Modalidade de apoio: Bolsas no Brasil - Mestrado