| Full text | |
| Author(s): |
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]
Total Authors: 8
|
| Affiliation: | [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
Total Affiliations: 4
|
| Document type: | Journal article |
| Source: | FOOD MICROBIOLOGY; v. 86, APR 2020. |
| Web of Science Citations: | 0 |
| Abstract | |
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) | |
| FAPESP's process: | 15/20649-7 - Viability of Toxoplasma gondii cysts in pork processed by ageing from experimentally infected animals |
| Grantee: | Bruna Farias Alves |
| Support Opportunities: | Scholarships in Brazil - Master |